-/* Copyright (C) 1995,1996,1997,1998, 1999 Free Software Foundation, Inc.
-
+/* Copyright (C) 1995,1996,1997,1998,1999,2000 Free Software Foundation, Inc.
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
#include <stdio.h>
#include <math.h>
-#include "_scm.h"
-#include "genio.h"
-#include "unif.h"
-#include "feature.h"
-#include "smob.h"
-
-#include "scm_validate.h"
-#include "numbers.h"
+#include "libguile/_scm.h"
+#include "libguile/feature.h"
+#include "libguile/ports.h"
+#include "libguile/root.h"
+#include "libguile/smob.h"
+#include "libguile/strings.h"
+#include "libguile/vectors.h"
+
+#include "libguile/validate.h"
+#include "libguile/numbers.h"
+
\f
+
+static SCM scm_divbigbig (SCM_BIGDIG *x, scm_sizet nx, SCM_BIGDIG *y, scm_sizet ny, int sgn, int modes);
+static SCM scm_divbigint (SCM x, long z, int sgn, int mode);
+
+
#define DIGITS '0':case '1':case '2':case '3':case '4':\
case '5':case '6':case '7':case '8':case '9'
+#define SCM_SWAP(x,y) do { SCM __t = x; x = y; y = __t; } while (0)
+
+
+#if (SCM_DEBUG_DEPRECATED == 1) /* not defined in header yet? */
+
+/* SCM_FLOBUFLEN is the maximum number of characters neccessary for the
+ * printed or scm_string representation of an inexact number.
+ */
+#define SCM_FLOBUFLEN (10+2*(sizeof(double)/sizeof(char)*SCM_CHAR_BIT*3+9)/10)
+
+#endif /* SCM_DEBUG_DEPRECATED == 1 */
+
+
/* IS_INF tests its floating point number for infiniteness
+ Dirk:FIXME:: This test does not work if x == 0
*/
#ifndef IS_INF
#define IS_INF(x) ((x) == (x) / 2)
#endif
+
/* Return true if X is not infinite and is not a NaN
+ Dirk:FIXME:: Since IS_INF is broken, this test does not work if x == 0
*/
#ifndef isfinite
#define isfinite(x) (!IS_INF (x) && (x) == (x))
#endif
-/* MAXEXP is the maximum double precision expontent
- * FLTMAX is less than or scm_equal the largest single precision float
- */
-
-#ifdef SCM_FLOATS
-#ifdef STDC_HEADERS
-#ifndef GO32
-#include <float.h>
-#endif /* ndef GO32 */
-#endif /* def STDC_HEADERS */
-#ifdef DBL_MAX_10_EXP
-#define MAXEXP DBL_MAX_10_EXP
-#else
-#define MAXEXP 308 /* IEEE doubles */
-#endif /* def DBL_MAX_10_EXP */
-#ifdef FLT_MAX
-#define FLTMAX FLT_MAX
-#else
-#define FLTMAX 1e+23
-#endif /* def FLT_MAX */
-#endif /* def SCM_FLOATS */
\f
-GUILE_PROC (scm_exact_p, "exact?", 1, 0, 0,
+SCM_DEFINE (scm_exact_p, "exact?", 1, 0, 0,
(SCM x),
-"")
+ "Return #t if X is an exact number, #f otherwise.")
#define FUNC_NAME s_scm_exact_p
{
- if (SCM_INUMP (x))
+ if (SCM_INUMP (x)) {
return SCM_BOOL_T;
-#ifdef SCM_BIGDIG
- if (SCM_BIGP (x))
+ } else if (SCM_BIGP (x)) {
return SCM_BOOL_T;
-#endif
- return SCM_BOOL_F;
+ } else {
+ return SCM_BOOL_F;
+ }
}
#undef FUNC_NAME
-GUILE_PROC (scm_odd_p, "odd?", 1, 0, 0,
+
+SCM_DEFINE (scm_odd_p, "odd?", 1, 0, 0,
(SCM n),
-"")
+ "Return #t if N is an odd number, #f otherwise.")
#define FUNC_NAME s_scm_odd_p
{
-#ifdef SCM_BIGDIG
- if (SCM_NINUMP (n))
- {
- SCM_VALIDATE_BIGINT(1,n);
- return SCM_BOOL(1 & SCM_BDIGITS (n)[0]);
- }
-#else
- SCM_VALIDATE_INUM(1,n);
-#endif
- return SCM_BOOL(4 & (int) n);
+ if (SCM_INUMP (n)) {
+ return SCM_BOOL ((4 & SCM_UNPACK (n)) != 0);
+ } else if (SCM_BIGP (n)) {
+ return SCM_BOOL ((1 & SCM_BDIGITS (n) [0]) != 0);
+ } else {
+ SCM_WRONG_TYPE_ARG (1, n);
+ }
}
#undef FUNC_NAME
-GUILE_PROC (scm_even_p, "even?", 1, 0, 0,
+
+SCM_DEFINE (scm_even_p, "even?", 1, 0, 0,
(SCM n),
-"")
+ "Return #t if N is an even number, #f otherwise.")
#define FUNC_NAME s_scm_even_p
{
-#ifdef SCM_BIGDIG
- if (SCM_NINUMP (n))
- {
- SCM_VALIDATE_BIGINT(1,n);
- return SCM_NEGATE_BOOL(1 & SCM_BDIGITS (n)[0]);
- }
-#else
- SCM_VALIDATE_INUM(1,n);
-#endif
- return SCM_NEGATE_BOOL(4 & (int) n);
+ if (SCM_INUMP (n)) {
+ return SCM_BOOL ((4 & SCM_UNPACK (n)) == 0);
+ } else if (SCM_BIGP (n)) {
+ return SCM_BOOL ((1 & SCM_BDIGITS (n) [0]) == 0);
+ } else {
+ SCM_WRONG_TYPE_ARG (1, n);
+ }
}
#undef FUNC_NAME
+
SCM_GPROC (s_abs, "abs", 1, 0, 0, scm_abs, g_abs);
SCM
scm_abs (SCM x)
{
+ if (SCM_INUMP (x)) {
+ long int xx = SCM_INUM (x);
+ if (xx >= 0) {
+ return x;
+ } else if (SCM_POSFIXABLE (-xx)) {
+ return SCM_MAKINUM (-xx);
+ } else {
#ifdef SCM_BIGDIG
- if (SCM_NINUMP (x))
- {
- SCM_GASSERT1 (SCM_BIGP (x), g_abs, x, SCM_ARG1, s_abs);
- if (SCM_TYP16 (x) == scm_tc16_bigpos)
- return x;
- return scm_copybig (x, 0);
- }
-#else
- SCM_GASSERT1 (SCM_INUMP (x), g_abs, x, SCM_ARG1, s_abs);
-#endif
- if (SCM_INUM (x) >= 0)
- return x;
- x = - SCM_INUM (x);
- if (!SCM_POSFIXABLE (x))
-#ifdef SCM_BIGDIG
- return scm_long2big (x);
+ return scm_long2big (-xx);
#else
- scm_num_overflow (s_abs);
+ scm_num_overflow (s_abs);
#endif
- return SCM_MAKINUM (x);
+ }
+ } else if (SCM_BIGP (x)) {
+ if (!SCM_BIGSIGN (x)) {
+ return x;
+ } else {
+ return scm_copybig (x, 0);
+ }
+ } else if (SCM_REALP (x)) {
+ return scm_make_real (fabs (SCM_REAL_VALUE (x)));
+ } else {
+ SCM_WTA_DISPATCH_1 (g_abs, x, 1, s_abs);
+ }
}
+
SCM_GPROC (s_quotient, "quotient", 2, 0, 0, scm_quotient, g_quotient);
SCM
scm_quotient (SCM x, SCM y)
{
- register long z;
+ if (SCM_INUMP (x)) {
+ long xx = SCM_INUM (x);
+ if (SCM_INUMP (y)) {
+ long yy = SCM_INUM (y);
+ if (yy == 0) {
+ scm_num_overflow (s_quotient);
+ } else {
+ long z = xx / yy;
+ if (SCM_FIXABLE (z)) {
+ return SCM_MAKINUM (z);
+ } else {
#ifdef SCM_BIGDIG
- if (SCM_NINUMP (x))
- {
- long w;
- SCM_GASSERT2 (SCM_BIGP (x),
- g_quotient, x, y, SCM_ARG1, s_quotient);
- if (SCM_NINUMP (y))
- {
- SCM_ASRTGO (SCM_BIGP (y), bady);
- return scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
- SCM_BDIGITS (y), SCM_NUMDIGS (y),
- SCM_BIGSIGN (x) ^ SCM_BIGSIGN (y), 2);
- }
- z = SCM_INUM (y);
- SCM_ASRTGO (z, ov);
- if (1 == z)
- return x;
- if (z < 0)
- z = -z;
- if (z < SCM_BIGRAD)
- {
- w = scm_copybig (x, SCM_BIGSIGN (x) ? (y > 0) : (y < 0));
- scm_divbigdig (SCM_BDIGITS (w), SCM_NUMDIGS (w), (SCM_BIGDIG) z);
- return scm_normbig (w);
- }
-#ifndef SCM_DIGSTOOBIG
- w = scm_pseudolong (z);
- return scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
- (SCM_BIGDIG *) & w, SCM_DIGSPERLONG,
- SCM_BIGSIGN (x) ? (y > 0) : (y < 0), 2);
+ return scm_long2big (z);
#else
- {
- SCM_BIGDIG zdigs[SCM_DIGSPERLONG];
- scm_longdigs (z, zdigs);
- return scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
- zdigs, SCM_DIGSPERLONG,
- SCM_BIGSIGN (x) ? (y > 0) : (y < 0), 2);
- }
+ scm_num_overflow (s_quotient);
#endif
- }
- if (SCM_NINUMP (y))
- {
- if (!SCM_BIGP (y))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_quotient, x, y, SCM_ARG2, s_quotient);
}
+ }
+ } else if (SCM_BIGP (y)) {
return SCM_INUM0;
- }
+ } else {
+ SCM_WTA_DISPATCH_2 (g_quotient, x, y, SCM_ARG2, s_quotient);
+ }
+ } else if (SCM_BIGP (x)) {
+ if (SCM_INUMP (y)) {
+ long yy = SCM_INUM (y);
+ if (yy == 0) {
+ scm_num_overflow (s_quotient);
+ } else if (yy == 1) {
+ return x;
+ } else {
+ long z = yy < 0 ? -yy : yy;
+
+ if (z < SCM_BIGRAD) {
+ SCM sw = scm_copybig (x, SCM_BIGSIGN (x) ? (yy > 0) : (yy < 0));
+ scm_divbigdig (SCM_BDIGITS (sw), SCM_NUMDIGS (sw), (SCM_BIGDIG) z);
+ return scm_normbig (sw);
+ } else {
+#ifndef SCM_DIGSTOOBIG
+ long w = scm_pseudolong (z);
+ return scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
+ (SCM_BIGDIG *) & w, SCM_DIGSPERLONG,
+ SCM_BIGSIGN (x) ? (yy > 0) : (yy < 0), 2);
#else
- SCM_GASSERT2 (SCM_INUMP (x), g_quotient, x, y, SCM_ARG1, s_quotient);
- SCM_GASSERT2 (SCM_INUMP (y), g_quotient, x, y, SCM_ARG2, s_quotient);
+ SCM_BIGDIG zdigs[SCM_DIGSPERLONG];
+ scm_longdigs (z, zdigs);
+ return scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
+ zdigs, SCM_DIGSPERLONG,
+ SCM_BIGSIGN (x) ? (yy > 0) : (yy < 0), 2);
#endif
- if ((z = SCM_INUM (y)) == 0)
- {
- ov:
- scm_num_overflow (s_quotient);
+ }
+ }
+ } else if (SCM_BIGP (y)) {
+ return scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
+ SCM_BDIGITS (y), SCM_NUMDIGS (y),
+ SCM_BIGSIGN (x) ^ SCM_BIGSIGN (y), 2);
+ } else {
+ SCM_WTA_DISPATCH_2 (g_quotient, x, y, SCM_ARG2, s_quotient);
}
- z = SCM_INUM (x) / z;
-#ifdef BADIVSGNS
- {
-#if (__TURBOC__ == 1)
- long t = ((y < 0) ? -SCM_INUM (x) : SCM_INUM (x)) % SCM_INUM (y);
-#else
- long t = SCM_INUM (x) % SCM_INUM (y);
-#endif
- if (t == 0);
- else if (t < 0)
- if (x < 0);
- else
- z--;
- else if (x < 0)
- z++;
+ } else {
+ SCM_WTA_DISPATCH_2 (g_quotient, x, y, SCM_ARG1, s_quotient);
}
-#endif
- if (!SCM_FIXABLE (z))
-#ifdef SCM_BIGDIG
- return scm_long2big (z);
-#else
- scm_num_overflow (s_quotient);
-#endif
- return SCM_MAKINUM (z);
}
+
SCM_GPROC (s_remainder, "remainder", 2, 0, 0, scm_remainder, g_remainder);
SCM
scm_remainder (SCM x, SCM y)
{
- register long z;
-#ifdef SCM_BIGDIG
- if (SCM_NINUMP (x))
- {
- SCM_GASSERT2 (SCM_BIGP (x),
- g_remainder, x, y, SCM_ARG1, s_remainder);
- if (SCM_NINUMP (y))
- {
- SCM_ASRTGO (SCM_BIGP (y), bady);
- return scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
- SCM_BDIGITS (y), SCM_NUMDIGS (y),
- SCM_BIGSIGN (x), 0);
- }
- if (!(z = SCM_INUM (y)))
- goto ov;
- return scm_divbigint (x, z, SCM_BIGSIGN (x), 0);
- }
- if (SCM_NINUMP (y))
- {
- if (!SCM_BIGP (y))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_remainder, x, y, SCM_ARG2, s_remainder);
- }
+ if (SCM_INUMP (x)) {
+ if (SCM_INUMP (y)) {
+ long yy = SCM_INUM (y);
+ if (yy == 0) {
+ scm_num_overflow (s_remainder);
+ } else {
+ long z = SCM_INUM (x) % yy;
+ return SCM_MAKINUM (z);
+ }
+ } else if (SCM_BIGP (y)) {
return x;
+ } else {
+ SCM_WTA_DISPATCH_2 (g_remainder, x, y, SCM_ARG2, s_remainder);
+ }
+ } else if (SCM_BIGP (x)) {
+ if (SCM_INUMP (y)) {
+ long yy = SCM_INUM (y);
+ if (yy == 0) {
+ scm_num_overflow (s_remainder);
+ } else {
+ return scm_divbigint (x, yy, SCM_BIGSIGN (x), 0);
+ }
+ } else if (SCM_BIGP (y)) {
+ return scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
+ SCM_BDIGITS (y), SCM_NUMDIGS (y),
+ SCM_BIGSIGN (x), 0);
+ } else {
+ SCM_WTA_DISPATCH_2 (g_remainder, x, y, SCM_ARG2, s_remainder);
}
-#else
- SCM_GASSERT2 (SCM_INUMP (x), g_remainder, x, y, SCM_ARG1, s_remainder);
- SCM_GASSERT2 (SCM_INUMP (y), g_remainder, x, y, SCM_ARG2, s_remainder);
-#endif
- if (!(z = SCM_INUM (y)))
- {
- ov:
- scm_num_overflow (s_remainder);
- }
-#if (__TURBOC__ == 1)
- if (z < 0)
- z = -z;
-#endif
- z = SCM_INUM (x) % z;
-#ifdef BADIVSGNS
- if (!z);
- else if (z < 0)
- if (x < 0);
- else
- z += SCM_INUM (y);
- else if (x < 0)
- z -= SCM_INUM (y);
-#endif
- return SCM_MAKINUM (z);
+ } else {
+ SCM_WTA_DISPATCH_2 (g_remainder, x, y, SCM_ARG1, s_remainder);
+ }
}
+
SCM_GPROC (s_modulo, "modulo", 2, 0, 0, scm_modulo, g_modulo);
SCM
scm_modulo (SCM x, SCM y)
{
- register long yy, z;
-#ifdef SCM_BIGDIG
- if (SCM_NINUMP (x))
- {
- SCM_GASSERT2 (SCM_BIGP (x),
- g_modulo, x, y, SCM_ARG1, s_modulo);
- if (SCM_NINUMP (y))
- {
- SCM_ASRTGO (SCM_BIGP (y), bady);
- return scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
- SCM_BDIGITS (y), SCM_NUMDIGS (y),
- SCM_BIGSIGN (y),
- (SCM_BIGSIGN (x) ^ SCM_BIGSIGN (y)) ? 1 : 0);
- }
- if (!(z = SCM_INUM (y)))
- goto ov;
- return scm_divbigint (x, z, y < 0,
- (SCM_BIGSIGN (x) ? (y > 0) : (y < 0)) ? 1 : 0);
- }
- if (SCM_NINUMP (y))
- {
- if (!SCM_BIGP (y))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_modulo, x, y, SCM_ARG2, s_modulo);
- }
- return (SCM_BIGSIGN (y) ? (x > 0) : (x < 0)) ? scm_sum (x, y) : x;
- }
-#else
- SCM_GASSERT1 (SCM_INUMP (x), g_modulo, x, y, SCM_ARG1, s_modulo);
- SCM_GASSERT2 (SCM_INUMP (y), g_modulo, x, y, SCM_ARG2, s_modulo);
-#endif
- if (!(yy = SCM_INUM (y)))
- {
- ov:
- scm_num_overflow (s_modulo);
- }
-#if (__TURBOC__==1)
- z = SCM_INUM (x);
- z = ((yy < 0) ? -z : z) % yy;
-#else
- z = SCM_INUM (x) % yy;
-#endif
- return SCM_MAKINUM (((yy < 0) ? (z > 0) : (z < 0)) ? z + yy : z);
+ if (SCM_INUMP (x)) {
+ long xx = SCM_INUM (x);
+ if (SCM_INUMP (y)) {
+ long yy = SCM_INUM (y);
+ if (yy == 0) {
+ scm_num_overflow (s_modulo);
+ } else {
+ long z = xx % yy;
+ return SCM_MAKINUM (((yy < 0) ? (z > 0) : (z < 0)) ? z + yy : z);
+ }
+ } else if (SCM_BIGP (y)) {
+ return (SCM_BIGSIGN (y) ? (xx > 0) : (xx < 0)) ? scm_sum (x, y) : x;
+ } else {
+ SCM_WTA_DISPATCH_2 (g_modulo, x, y, SCM_ARG2, s_modulo);
+ }
+ } else if (SCM_BIGP (x)) {
+ if (SCM_INUMP (y)) {
+ long yy = SCM_INUM (y);
+ if (yy == 0) {
+ scm_num_overflow (s_modulo);
+ } else {
+ return scm_divbigint (x, yy, yy < 0,
+ (SCM_BIGSIGN (x) ? (yy > 0) : (yy < 0)) ? 1 : 0);
+ }
+ } else if (SCM_BIGP (y)) {
+ return scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
+ SCM_BDIGITS (y), SCM_NUMDIGS (y),
+ SCM_BIGSIGN (y),
+ (SCM_BIGSIGN (x) ^ SCM_BIGSIGN (y)) ? 1 : 0);
+ } else {
+ SCM_WTA_DISPATCH_2 (g_modulo, x, y, SCM_ARG2, s_modulo);
+ }
+ } else {
+ SCM_WTA_DISPATCH_2 (g_modulo, x, y, SCM_ARG1, s_modulo);
+ }
}
+
SCM_GPROC1 (s_gcd, "gcd", scm_tc7_asubr, scm_gcd, g_gcd);
SCM
scm_gcd (SCM x, SCM y)
{
- register long u, v, k, t;
- if (SCM_UNBNDP (y))
- return SCM_UNBNDP (x) ? SCM_INUM0 : x;
+ if (SCM_UNBNDP (y)) {
+ if (SCM_UNBNDP (x)) {
+ return SCM_INUM0;
+ } else {
+ return x;
+ }
+ }
+
tailrec:
-#ifdef SCM_BIGDIG
- if (SCM_NINUMP (x))
- {
- big_gcd:
- SCM_GASSERT2 (SCM_BIGP (x),
- g_gcd, x, y, SCM_ARG1, s_gcd);
- if (SCM_BIGSIGN (x))
- x = scm_copybig (x, 0);
- newy:
- if (SCM_NINUMP (y))
- {
- SCM_GASSERT2 (SCM_BIGP (y),
- g_gcd, x, y, SCM_ARGn, s_gcd);
- if (SCM_BIGSIGN (y))
- y = scm_copybig (y, 0);
- switch (scm_bigcomp (x, y))
- {
- case -1:
- swaprec:
- t = scm_remainder (x, y);
- x = y;
- y = t;
- goto tailrec;
- case 0:
- return x;
- case 1:
- y = scm_remainder (y, x);
- goto newy;
- }
- /* instead of the switch, we could just
- return scm_gcd (y, scm_modulo (x, y)); */
+ if (SCM_INUMP (x)) {
+ if (SCM_INUMP (y)) {
+ long xx = SCM_INUM (x);
+ long yy = SCM_INUM (y);
+ long u = xx < 0 ? -xx : xx;
+ long v = yy < 0 ? -yy : yy;
+ long result;
+
+ if (xx == 0) {
+ result = v;
+ } else if (yy == 0) {
+ result = u;
+ } else {
+ int k = 1;
+ long t;
+
+ /* Determine a common factor 2^k */
+ while (!(1 & (u | v))) {
+ k <<= 1;
+ u >>= 1;
+ v >>= 1;
}
- if (SCM_INUM0 == y)
- return x;
- goto swaprec;
- }
- if (SCM_NINUMP (y))
- {
- t = x;
- x = y;
- y = t;
- goto big_gcd;
- }
-#else
- SCM_GASSERT2 (SCM_INUMP (x), g_gcd, x, y, SCM_ARG1, s_gcd);
- SCM_GASSERT2 (SCM_INUMP (y), g_gcd, x, y, SCM_ARGn, s_gcd);
-#endif
- u = SCM_INUM (x);
- if (u < 0)
- u = -u;
- v = SCM_INUM (y);
- if (v < 0)
- v = -v;
- else if (0 == v)
- goto getout;
- if (0 == u)
- {
- u = v;
- goto getout;
- }
- for (k = 1; !(1 & ((int) u | (int) v)); k <<= 1, u >>= 1, v >>= 1);
- if (1 & (int) u)
- t = -v;
- else
- {
- t = u;
- b3:
- t = SCM_SRS (t, 1);
- }
- if (!(1 & (int) t))
- goto b3;
- if (t > 0)
- u = t;
- else
- v = -t;
- if ((t = u - v))
- goto b3;
- u = u * k;
- getout:
- if (!SCM_POSFIXABLE (u))
+
+ /* Now, any factor 2^n can be eliminated */
+ if (u & 1) {
+ t = -v;
+ } else {
+ t = u;
+ b3:
+ t = SCM_SRS (t, 1);
+ }
+ if (!(1 & t))
+ goto b3;
+ if (t > 0)
+ u = t;
+ else
+ v = -t;
+ t = u - v;
+ if (t != 0)
+ goto b3;
+
+ result = u * k;
+ }
+ if (SCM_POSFIXABLE (result)) {
+ return SCM_MAKINUM (result);
+ } else {
#ifdef SCM_BIGDIG
- return scm_long2big (u);
+ return scm_long2big (result);
#else
- scm_num_overflow (s_gcd);
+ scm_num_overflow (s_gcd);
#endif
- return SCM_MAKINUM (u);
+ }
+ } else if (SCM_BIGP (y)) {
+ SCM_SWAP (x, y);
+ goto big_gcd;
+ } else {
+ SCM_WTA_DISPATCH_2 (g_gcd, x, y, SCM_ARG2, s_gcd);
+ }
+ } else if (SCM_BIGP (x)) {
+ big_gcd:
+ if (SCM_BIGSIGN (x))
+ x = scm_copybig (x, 0);
+ newy:
+ if (SCM_INUMP (y)) {
+ if (SCM_EQ_P (y, SCM_INUM0)) {
+ return x;
+ } else {
+ goto swaprec;
+ }
+ } else if (SCM_BIGP (y)) {
+ if (SCM_BIGSIGN (y))
+ y = scm_copybig (y, 0);
+ switch (scm_bigcomp (x, y))
+ {
+ case -1: /* x > y */
+ swaprec:
+ {
+ SCM t = scm_remainder (x, y);
+ x = y;
+ y = t;
+ }
+ goto tailrec;
+ case 1: /* x < y */
+ y = scm_remainder (y, x);
+ goto newy;
+ default: /* x == y */
+ return x;
+ }
+ /* instead of the switch, we could just
+ return scm_gcd (y, scm_modulo (x, y)); */
+ } else {
+ SCM_WTA_DISPATCH_2 (g_gcd, x, y, SCM_ARG2, s_gcd);
+ }
+ } else {
+ SCM_WTA_DISPATCH_2 (g_gcd, x, y, SCM_ARG1, s_gcd);
+ }
}
+
SCM_GPROC1 (s_lcm, "lcm", scm_tc7_asubr, scm_lcm, g_lcm);
SCM
scm_lcm (SCM n1, SCM n2)
{
- SCM d;
+ if (SCM_UNBNDP (n2)) {
+ if (SCM_UNBNDP (n1)) {
+ return SCM_MAKINUM (1L);
+ } else {
+ n2 = SCM_MAKINUM (1L);
+ }
+ };
+
#ifndef SCM_BIGDIG
- SCM_GASSERT2 (SCM_INUMP (n1) || SCM_UNBNDP (n1),
- g_lcm, n1, n2, SCM_ARG1, s_lcm);
- SCM_GASSERT2 (SCM_INUMP (n2) || SCM_UNBNDP (n2),
- g_lcm, n1, n2, SCM_ARGn, s_lcm);
+ SCM_GASSERT2 (SCM_INUMP (n1), g_lcm, n1, n2, SCM_ARG1, s_lcm);
+ SCM_GASSERT2 (SCM_INUMP (n2), g_lcm, n1, n2, SCM_ARGn, s_lcm);
#else
- SCM_GASSERT2 (SCM_INUMP (n1)
- || SCM_UNBNDP (n1)
- || (SCM_BIGP (n1)),
+ SCM_GASSERT2 (SCM_INUMP (n1) || SCM_BIGP (n1),
g_lcm, n1, n2, SCM_ARG1, s_lcm);
- SCM_GASSERT2 (SCM_INUMP (n2)
- || SCM_UNBNDP (n2)
- || (SCM_BIGP (n2)),
+ SCM_GASSERT2 (SCM_INUMP (n2) || SCM_BIGP (n2),
g_lcm, n1, n2, SCM_ARGn, s_lcm);
#endif
- if (SCM_UNBNDP (n2))
- {
- n2 = SCM_MAKINUM (1L);
- if (SCM_UNBNDP (n1))
- return n2;
+
+ {
+ SCM d = scm_gcd (n1, n2);
+ if (SCM_EQ_P (d, SCM_INUM0)) {
+ return d;
+ } else {
+ return scm_abs (scm_product (n1, scm_quotient (n2, d)));
}
-
- d = scm_gcd (n1, n2);
- if (SCM_INUM0 == d)
- return d;
- return scm_abs (scm_product (n1, scm_quotient (n2, d)));
+ }
}
-#ifndef SCM_BIGDIG
-#ifndef SCM_FLOATS
-#define scm_long2num SCM_MAKINUM
-#endif
-#endif
#ifndef scm_long2num
-GUILE_PROC1 (scm_logand, "logand", scm_tc7_asubr,
- (SCM n1, SCM n2),
-"Returns the integer which is the bit-wise AND of the two integer
-arguments.
+#define SCM_LOGOP_RETURN(x) scm_ulong2num(x)
+#else
+#define SCM_LOGOP_RETURN(x) SCM_MAKINUM(x)
+#endif
-Example:
-@lisp
-(number->string (logand #b1100 #b1010) 2)
- @result{} \"1000\"")
-#define FUNC_NAME s_scm_logand
+
+/* Emulating 2's complement bignums with sign magnitude arithmetic:
+
+ Logand:
+ X Y Result Method:
+ (len)
+ + + + x (map digit:logand X Y)
+ + - + x (map digit:logand X (lognot (+ -1 Y)))
+ - + + y (map digit:logand (lognot (+ -1 X)) Y)
+ - - - (+ 1 (map digit:logior (+ -1 X) (+ -1 Y)))
+
+ Logior:
+ X Y Result Method:
+
+ + + + (map digit:logior X Y)
+ + - - y (+ 1 (map digit:logand (lognot X) (+ -1 Y)))
+ - + - x (+ 1 (map digit:logand (+ -1 X) (lognot Y)))
+ - - - x (+ 1 (map digit:logand (+ -1 X) (+ -1 Y)))
+
+ Logxor:
+ X Y Result Method:
+
+ + + + (map digit:logxor X Y)
+ + - - (+ 1 (map digit:logxor X (+ -1 Y)))
+ - + - (+ 1 (map digit:logxor (+ -1 X) Y))
+ - - + (map digit:logxor (+ -1 X) (+ -1 Y))
+
+ Logtest:
+ X Y Result
+
+ + + (any digit:logand X Y)
+ + - (any digit:logand X (lognot (+ -1 Y)))
+ - + (any digit:logand (lognot (+ -1 X)) Y)
+ - - #t
+
+*/
+
+#ifdef SCM_BIGDIG
+
+SCM scm_copy_big_dec(SCM b, int sign);
+SCM scm_copy_smaller(SCM_BIGDIG *x, scm_sizet nx, int zsgn);
+SCM scm_big_ior(SCM_BIGDIG *x, scm_sizet nx, int xsgn, SCM bigy);
+SCM scm_big_xor(SCM_BIGDIG *x, scm_sizet nx, int xsgn, SCM bigy);
+SCM scm_big_and(SCM_BIGDIG *x, scm_sizet nx, int xsgn, SCM bigy, int zsgn);
+SCM scm_big_test(SCM_BIGDIG *x, scm_sizet nx, int xsgn, SCM bigy);
+
+SCM scm_copy_big_dec(SCM b, int sign)
{
- int i1, i2;
- if (SCM_UNBNDP (n2))
- {
- if (SCM_UNBNDP (n1))
- return SCM_MAKINUM (-1);
- return n1;
- }
- SCM_VALIDATE_INUM_COPY(1,n1,i1);
- SCM_VALIDATE_INUM_COPY(2,n2,i2);
- return scm_ulong2num (i1 & i2);
+ long num = -1;
+ scm_sizet nx = SCM_NUMDIGS(b);
+ scm_sizet i = 0;
+ SCM ans = scm_mkbig(nx, sign);
+ SCM_BIGDIG *src = SCM_BDIGITS(b), *dst = SCM_BDIGITS(ans);
+ if SCM_BIGSIGN(b) do {
+ num += src[i];
+ if (num < 0) {dst[i] = num + SCM_BIGRAD; num = -1;}
+ else {dst[i] = SCM_BIGLO(num); num = 0;}
+ } while (++i < nx);
+ else
+ while (nx--) dst[nx] = src[nx];
+ return ans;
}
-#undef FUNC_NAME
-GUILE_PROC1 (scm_logior, "logior", scm_tc7_asubr,
- (SCM n1, SCM n2),
-"Returns the integer which is the bit-wise OR of the two integer
-arguments.
-
-Example:
-@lisp
-(number->string (logior #b1100 #b1010) 2)
- @result{} \"1110\"
-@end lisp")
-#define FUNC_NAME s_scm_logior
+SCM scm_copy_smaller(SCM_BIGDIG *x, scm_sizet nx, int zsgn)
{
- int i1, i2;
- if (SCM_UNBNDP (n2))
- {
- if (SCM_UNBNDP (n1))
- return SCM_INUM0;
- return n1;
- }
- SCM_VALIDATE_INUM_COPY(1,n1,i1);
- SCM_VALIDATE_INUM_COPY(2,n2,i2);
- return scm_ulong2num (i1 | i2);
+ long num = -1;
+ scm_sizet i = 0;
+ SCM z = scm_mkbig(nx, zsgn);
+ SCM_BIGDIG *zds = SCM_BDIGITS(z);
+ if (zsgn) do {
+ num += x[i];
+ if (num < 0) {zds[i] = num + SCM_BIGRAD; num = -1;}
+ else {zds[i] = SCM_BIGLO(num); num = 0;}
+ } while (++i < nx);
+ else do zds[i] = x[i]; while (++i < nx);
+ return z;
}
-#undef FUNC_NAME
-GUILE_PROC1 (scm_logxor, "logxor", scm_tc7_asubr,
- (SCM n1, SCM n2),
-"Returns the integer which is the bit-wise XOR of the two integer
-arguments.
-
-Example:
-@lisp
-(number->string (logxor #b1100 #b1010) 2)
- @result{} \"110\"
-@end lisp")
-#define FUNC_NAME s_scm_logxor
+SCM scm_big_ior(SCM_BIGDIG *x, scm_sizet nx, int xsgn, SCM bigy)
+/* Assumes nx <= SCM_NUMDIGS(bigy) */
+/* Assumes xsgn equals either 0 or SCM_BIGSIGNFLAG */
{
- int i1, i2;
- if (SCM_UNBNDP (n2))
- {
- if (SCM_UNBNDP (n1))
- return SCM_INUM0;
- return n1;
- }
- SCM_VALIDATE_INUM_COPY(1,n1,i1);
- SCM_VALIDATE_INUM_COPY(2,n2,i2);
- return scm_ulong2num (i1 ^ i2);
+ long num = -1;
+ scm_sizet i = 0, ny = SCM_NUMDIGS(bigy);
+ SCM z = scm_copy_big_dec (bigy, xsgn & SCM_BIGSIGN (bigy));
+ SCM_BIGDIG *zds = SCM_BDIGITS(z);
+ if (xsgn) {
+ do {
+ num += x[i];
+ if (num < 0) {zds[i] |= num + SCM_BIGRAD; num = -1;}
+ else {zds[i] |= SCM_BIGLO(num); num = 0;}
+ } while (++i < nx);
+ /* ========= Need to increment zds now =========== */
+ i = 0; num = 1;
+ while (i < ny) {
+ num += zds[i];
+ zds[i++] = SCM_BIGLO(num);
+ num = SCM_BIGDN(num);
+ if (!num) return z;
+ }
+ scm_adjbig(z, 1 + ny); /* OOPS, overflowed into next digit. */
+ SCM_BDIGITS(z)[ny] = 1;
+ return z;
+ }
+ else do zds[i] = zds[i] | x[i]; while (++i < nx);
+ return z;
}
-#undef FUNC_NAME
-GUILE_PROC (scm_logtest, "logtest", 2, 0, 0,
- (SCM n1, SCM n2),
-"")
-#define FUNC_NAME s_scm_logtest
+SCM scm_big_xor(SCM_BIGDIG *x, scm_sizet nx, int xsgn, SCM bigy)
+/* Assumes nx <= SCM_NUMDIGS(bigy) */
+/* Assumes xsgn equals either 0 or SCM_BIGSIGNFLAG */
{
- int i1, i2;
- SCM_VALIDATE_INUM_COPY(1,n1,i1);
- SCM_VALIDATE_INUM_COPY(2,n2,i2);
- return SCM_BOOL(i1 & i2);
+ long num = -1;
+ scm_sizet i = 0, ny = SCM_NUMDIGS(bigy);
+ SCM z = scm_copy_big_dec(bigy, xsgn ^ SCM_BIGSIGN(bigy));
+ SCM_BIGDIG *zds = SCM_BDIGITS(z);
+ if (xsgn) do {
+ num += x[i];
+ if (num < 0) {zds[i] ^= num + SCM_BIGRAD; num = -1;}
+ else {zds[i] ^= SCM_BIGLO(num); num = 0;}
+ } while (++i < nx);
+ else do {
+ zds[i] = zds[i] ^ x[i];
+ } while (++i < nx);
+
+ if (xsgn ^ SCM_BIGSIGN(bigy)) {
+ /* ========= Need to increment zds now =========== */
+ i = 0; num = 1;
+ while (i < ny) {
+ num += zds[i];
+ zds[i++] = SCM_BIGLO(num);
+ num = SCM_BIGDN(num);
+ if (!num) return scm_normbig(z);
+ }
+ }
+ return scm_normbig(z);
}
-#undef FUNC_NAME
+SCM scm_big_and(SCM_BIGDIG *x, scm_sizet nx, int xsgn, SCM bigy, int zsgn)
+/* Assumes nx <= SCM_NUMDIGS(bigy) */
+/* Assumes xsgn equals either 0 or SCM_BIGSIGNFLAG */
+/* return sign equals either 0 or SCM_BIGSIGNFLAG */
+{
+ long num = -1;
+ scm_sizet i = 0;
+ SCM z;
+ SCM_BIGDIG *zds;
+ if (xsgn==zsgn) {
+ z = scm_copy_smaller(x, nx, zsgn);
+ x = SCM_BDIGITS(bigy);
+ xsgn = SCM_BIGSIGN(bigy);
+ }
+ else z = scm_copy_big_dec(bigy, zsgn);
+ zds = SCM_BDIGITS(z);
+
+ if (zsgn) {
+ if (xsgn) do {
+ num += x[i];
+ if (num < 0) {zds[i] &= num + SCM_BIGRAD; num = -1;}
+ else {zds[i] &= SCM_BIGLO(num); num = 0;}
+ } while (++i < nx);
+ else do zds[i] = zds[i] & ~x[i]; while (++i < nx);
+ /* ========= need to increment zds now =========== */
+ i = 0; num = 1;
+ while (i < nx) {
+ num += zds[i];
+ zds[i++] = SCM_BIGLO(num);
+ num = SCM_BIGDN(num);
+ if (!num) return scm_normbig(z);
+ }
+ }
+ else if (xsgn) do {
+ num += x[i];
+ if (num < 0) {zds[i] &= num + SCM_BIGRAD; num = -1;}
+ else {zds[i] &= ~SCM_BIGLO(num); num = 0;}
+ } while (++i < nx);
+ else do zds[i] = zds[i] & x[i]; while (++i < nx);
+ return scm_normbig(z);
+}
-GUILE_PROC (scm_logbit_p, "logbit?", 2, 0, 0,
- (SCM n1, SCM n2),
-"")
-#define FUNC_NAME s_scm_logbit_p
+SCM scm_big_test(SCM_BIGDIG *x, scm_sizet nx, int xsgn, SCM bigy)
+/* Assumes nx <= SCM_NUMDIGS(bigy) */
+/* Assumes xsgn equals either 0 or SCM_BIGSIGNFLAG */
{
- int i1, i2;
- SCM_VALIDATE_INUM_COPY(1,n1,i1);
- SCM_VALIDATE_INUM_COPY(2,n2,i2);
- return SCM_BOOL((1 << i1) & i2);
+ SCM_BIGDIG *y;
+ scm_sizet i = 0;
+ long num = -1;
+ if (SCM_BIGSIGN(bigy) & xsgn) return SCM_BOOL_T;
+ if (SCM_NUMDIGS(bigy) != nx && xsgn) return SCM_BOOL_T;
+ y = SCM_BDIGITS(bigy);
+ if (xsgn)
+ do {
+ num += x[i];
+ if (num < 0) {
+ if (y[i] & ~(num + SCM_BIGRAD)) return SCM_BOOL_T;
+ num = -1;
+ }
+ else {
+ if (y[i] & ~SCM_BIGLO(num)) return SCM_BOOL_T;
+ num = 0;
+ }
+ } while (++i < nx);
+ else if SCM_BIGSIGN(bigy)
+ do {
+ num += y[i];
+ if (num < 0) {
+ if (x[i] & ~(num + SCM_BIGRAD)) return SCM_BOOL_T;
+ num = -1;
+ }
+ else {
+ if (x[i] & ~SCM_BIGLO(num)) return SCM_BOOL_T;
+ num = 0;
+ }
+ } while (++i < nx);
+ else
+ do if (x[i] & y[i]) return SCM_BOOL_T;
+ while (++i < nx);
+ return SCM_BOOL_F;
}
-#undef FUNC_NAME
-#else
+#endif
-GUILE_PROC1 (scm_logand, "logand", scm_tc7_asubr,
+
+SCM_DEFINE1 (scm_logand, "logand", scm_tc7_asubr,
(SCM n1, SCM n2),
-"")
+ "Returns the integer which is the bit-wise AND of the two integer\n"
+ "arguments.\n\n"
+ "Example:\n"
+ "@lisp\n"
+ "(number->string (logand #b1100 #b1010) 2)\n"
+ " @result{} \"1000\"")
#define FUNC_NAME s_scm_logand
{
- int i1, i2;
- if (SCM_UNBNDP (n2))
- {
- if (SCM_UNBNDP (n1))
- return SCM_MAKINUM (-1);
+ long int nn1;
+
+ if (SCM_UNBNDP (n2)) {
+ if (SCM_UNBNDP (n1)) {
+ return SCM_MAKINUM (-1);
+ } else if (!SCM_NUMBERP (n1)) {
+ SCM_WRONG_TYPE_ARG (SCM_ARG1, n1);
+#ifndef SCM_RECKLESS
+ } else if (SCM_NUMBERP (n1)) {
return n1;
+ } else {
+ SCM_WRONG_TYPE_ARG (SCM_ARG1, n1);
+#else
+ } else {
+ return n1;
+#endif
+ }
+ }
+
+ if (SCM_INUMP (n1)) {
+ nn1 = SCM_INUM (n1);
+ if (SCM_INUMP (n2)) {
+ long nn2 = SCM_INUM (n2);
+ return SCM_MAKINUM (nn1 & nn2);
+ } else if SCM_BIGP (n2) {
+ intbig:
+ {
+# ifndef SCM_DIGSTOOBIG
+ long z = scm_pseudolong (nn1);
+ if ((nn1 < 0) && SCM_BIGSIGN (n2)) {
+ return scm_big_ior ((SCM_BIGDIG *) & z, SCM_DIGSPERLONG,
+ SCM_BIGSIGNFLAG, n2);
+ } else {
+ return scm_big_and ((SCM_BIGDIG *) & z, SCM_DIGSPERLONG,
+ (nn1 < 0) ? SCM_BIGSIGNFLAG : 0, n2, 0);
+ }
+# else
+ SCM_BIGDIG zdigs [SCM_DIGSPERLONG];
+ scm_longdigs (nn1, zdigs);
+ if ((nn1 < 0) && SCM_BIGSIGN (n2)) {
+ return scm_big_ior (zdigs, SCM_DIGSPERLONG, SCM_BIGSIGNFLAG, n2);
+ } else {
+ return scm_big_and (zdigs, SCM_DIGSPERLONG,
+ (nn1 < 0) ? SCM_BIGSIGNFLAG : 0, n2, 0);
+ }
+# endif
+ }
+ } else {
+ SCM_WRONG_TYPE_ARG (SCM_ARG2, n2);
+ }
+ } else if (SCM_BIGP (n1)) {
+ if (SCM_INUMP (n2)) {
+ SCM_SWAP (n1, n2);
+ nn1 = SCM_INUM (n1);
+ goto intbig;
+ } else if (SCM_BIGP (n2)) {
+ if (SCM_NUMDIGS (n1) > SCM_NUMDIGS (n2)) {
+ SCM_SWAP (n1, n2);
+ };
+ if ((SCM_BIGSIGN (n1)) && SCM_BIGSIGN (n2)) {
+ return scm_big_ior (SCM_BDIGITS (n1), SCM_NUMDIGS (n1),
+ SCM_BIGSIGNFLAG, n2);
+ } else {
+ return scm_big_and (SCM_BDIGITS (n1), SCM_NUMDIGS (n1),
+ SCM_BIGSIGN (n1), n2, 0);
+ }
+ } else {
+ SCM_WRONG_TYPE_ARG (SCM_ARG2, n2);
}
- SCM_VALIDATE_INUM_COPY(1,n1,i1);
- SCM_VALIDATE_INUM_COPY(2,n2,i2);
- return SCM_MAKINUM (i1 & i2);
+ } else {
+ SCM_WRONG_TYPE_ARG (SCM_ARG1, n1);
+ }
}
#undef FUNC_NAME
-GUILE_PROC1 (scm_logior, "logior", scm_tc7_asubr,
+
+SCM_DEFINE1 (scm_logior, "logior", scm_tc7_asubr,
(SCM n1, SCM n2),
-"")
+ "Returns the integer which is the bit-wise OR of the two integer\n"
+ "arguments.\n\n"
+ "Example:\n"
+ "@lisp\n"
+ "(number->string (logior #b1100 #b1010) 2)\n"
+ " @result{} \"1110\"\n"
+ "@end lisp")
#define FUNC_NAME s_scm_logior
{
- int i1, i2;
- if (SCM_UNBNDP (n2))
- {
- if (SCM_UNBNDP (n1))
- return SCM_INUM0;
+ long int nn1;
+
+ if (SCM_UNBNDP (n2)) {
+ if (SCM_UNBNDP (n1)) {
+ return SCM_INUM0;
+#ifndef SCM_RECKLESS
+ } else if (SCM_NUMBERP (n1)) {
+ return n1;
+ } else {
+ SCM_WRONG_TYPE_ARG (SCM_ARG1, n1);
+#else
+ } else {
return n1;
+#endif
+ }
+ }
+
+ if (SCM_INUMP (n1)) {
+ nn1 = SCM_INUM (n1);
+ if (SCM_INUMP (n2)) {
+ long nn2 = SCM_INUM (n2);
+ return SCM_MAKINUM (nn1 | nn2);
+ } else if (SCM_BIGP (n2)) {
+ intbig:
+ {
+# ifndef SCM_DIGSTOOBIG
+ long z = scm_pseudolong (nn1);
+ if ((!(nn1 < 0)) && !SCM_BIGSIGN (n2)) {
+ return scm_big_ior ((SCM_BIGDIG *) & z, SCM_DIGSPERLONG,
+ (nn1 < 0) ? SCM_BIGSIGNFLAG : 0, n2);
+ } else {
+ return scm_big_and ((SCM_BIGDIG *) & z, SCM_DIGSPERLONG,
+ (nn1 < 0) ? SCM_BIGSIGNFLAG : 0, n2, SCM_BIGSIGNFLAG);
+ }
+# else
+ BIGDIG zdigs [DIGSPERLONG];
+ scm_longdigs (nn1, zdigs);
+ if ((!(nn1 < 0)) && !SCM_BIGSIGN (n2)) {
+ return scm_big_ior (zdigs, SCM_DIGSPERLONG,
+ (nn1 < 0) ? SCM_BIGSIGNFLAG : 0, n2);
+ } else {
+ return scm_big_and (zdigs, SCM_DIGSPERLONG,
+ (nn1 < 0) ? SCM_BIGSIGNFLAG : 0, n2, SCM_BIGSIGNFLAG);
+ }
+# endif
+ }
+ } else {
+ SCM_WRONG_TYPE_ARG (SCM_ARG2, n2);
+ }
+ } else if (SCM_BIGP (n1)) {
+ if (SCM_INUMP (n2)) {
+ SCM_SWAP (n1, n2);
+ nn1 = SCM_INUM (n1);
+ goto intbig;
+ } else if (SCM_BIGP (n2)) {
+ if (SCM_NUMDIGS (n1) > SCM_NUMDIGS (n2)) {
+ SCM_SWAP (n1, n2);
+ };
+ if ((!SCM_BIGSIGN (n1)) && !SCM_BIGSIGN (n2)) {
+ return scm_big_ior (SCM_BDIGITS (n1), SCM_NUMDIGS (n1),
+ SCM_BIGSIGN (n1), n2);
+ } else {
+ return scm_big_and (SCM_BDIGITS (n1), SCM_NUMDIGS (n1),
+ SCM_BIGSIGN (n1), n2, SCM_BIGSIGNFLAG);
+ }
+ } else {
+ SCM_WRONG_TYPE_ARG (SCM_ARG2, n2);
}
- SCM_VALIDATE_INUM_COPY(1,n1,i1);
- SCM_VALIDATE_INUM_COPY(2,n2,i2);
- return SCM_MAKINUM (i1 | i2);
+ } else {
+ SCM_WRONG_TYPE_ARG (SCM_ARG1, n1);
+ }
}
#undef FUNC_NAME
-GUILE_PROC1 (scm_logxor, "logxor", scm_tc7_asubr,
+
+SCM_DEFINE1 (scm_logxor, "logxor", scm_tc7_asubr,
(SCM n1, SCM n2),
-"")
+ "Returns the integer which is the bit-wise XOR of the two integer\n"
+ "arguments.\n\n"
+ "Example:\n"
+ "@lisp\n"
+ "(number->string (logxor #b1100 #b1010) 2)\n"
+ " @result{} \"110\"\n"
+ "@end lisp")
#define FUNC_NAME s_scm_logxor
{
- int i1, i2;
- if (SCM_UNBNDP (n2))
- {
- if (SCM_UNBNDP (n1))
- return SCM_INUM0;
+ long int nn1;
+
+ if (SCM_UNBNDP (n2)) {
+ if (SCM_UNBNDP (n1)) {
+ return SCM_INUM0;
+#ifndef SCM_RECKLESS
+ } else if (SCM_NUMBERP (n1)) {
+ return n1;
+ } else {
+ SCM_WRONG_TYPE_ARG (SCM_ARG1, n1);
+#else
+ } else {
return n1;
+#endif
}
- SCM_VALIDATE_INUM_COPY(1,n1,i1);
- SCM_VALIDATE_INUM_COPY(2,n2,i2);
- return SCM_MAKINUM (i1 ^ i2);
+ }
+
+ if (SCM_INUMP (n1)) {
+ nn1 = SCM_INUM (n1);
+ if (SCM_INUMP (n2)) {
+ long nn2 = SCM_INUM (n2);
+ return SCM_MAKINUM (nn1 ^ nn2);
+ } else if (SCM_BIGP (n2)) {
+ intbig:
+ {
+# ifndef SCM_DIGSTOOBIG
+ long z = scm_pseudolong (nn1);
+ return scm_big_xor ((SCM_BIGDIG *) & z, SCM_DIGSPERLONG,
+ (nn1 < 0) ? SCM_BIGSIGNFLAG : 0, n2);
+# else
+ SCM_BIGDIG zdigs [SCM_DIGSPERLONG];
+ scm_longdigs (nn1, zdigs);
+ return scm_big_xor (zdigs, SCM_DIGSPERLONG,
+ (nn1 < 0) ? SCM_BIGSIGNFLAG : 0, n2);
+# endif
+ }
+ } else {
+ SCM_WRONG_TYPE_ARG (SCM_ARG2, n2);
+ }
+ } else if (SCM_BIGP (n1)) {
+ if (SCM_INUMP (n2)) {
+ SCM_SWAP (n1, n2);
+ nn1 = SCM_INUM (n1);
+ goto intbig;
+ } else if (SCM_BIGP (n2)) {
+ if (SCM_NUMDIGS(n1) > SCM_NUMDIGS(n2)) {
+ SCM_SWAP (n1, n2);
+ }
+ return scm_big_xor (SCM_BDIGITS (n1), SCM_NUMDIGS (n1),
+ SCM_BIGSIGN (n1), n2);
+ } else {
+ SCM_WRONG_TYPE_ARG (SCM_ARG2, n2);
+ }
+ } else {
+ SCM_WRONG_TYPE_ARG (SCM_ARG1, n1);
+ }
}
#undef FUNC_NAME
-GUILE_PROC (scm_logtest, "logtest", 2, 0, 0,
- (SCM n1, SCM n2),
-"@example
-(logtest j k) @equiv{} (not (zero? (logand j k)))
-(logtest #b0100 #b1011) @result{} #f
-(logtest #b0100 #b0111) @result{} #t
-@end example")
+SCM_DEFINE (scm_logtest, "logtest", 2, 0, 0,
+ (SCM n1, SCM n2),
+ "@example\n"
+ "(logtest j k) @equiv{} (not (zero? (logand j k)))\n\n"
+ "(logtest #b0100 #b1011) @result{} #f\n"
+ "(logtest #b0100 #b0111) @result{} #t\n"
+ "@end example")
#define FUNC_NAME s_scm_logtest
{
- int i1, i2;
- SCM_VALIDATE_INUM_COPY(1,n1,i1);
- SCM_VALIDATE_INUM_COPY(2,n2,i2);
- return SCM_BOOL(i1 & i2);
+ long int nn1;
+
+ if (SCM_INUMP (n1)) {
+ nn1 = SCM_INUM (n1);
+ if (SCM_INUMP (n2)) {
+ long nn2 = SCM_INUM (n2);
+ return SCM_BOOL (nn1 & nn2);
+ } else if (SCM_BIGP (n2)) {
+ intbig:
+ {
+# ifndef SCM_DIGSTOOBIG
+ long z = scm_pseudolong (nn1);
+ return scm_big_test ((SCM_BIGDIG *)&z, SCM_DIGSPERLONG,
+ (nn1 < 0) ? SCM_BIGSIGNFLAG : 0, n2);
+# else
+ SCM_BIGDIG zdigs [SCM_DIGSPERLONG];
+ scm_longdigs (nn1, zdigs);
+ return scm_big_test (zdigs, SCM_DIGSPERLONG,
+ (nn1 < 0) ? SCM_BIGSIGNFLAG : 0, n2);
+# endif
+ }
+ } else {
+ SCM_WRONG_TYPE_ARG (SCM_ARG2, n2);
+ }
+ } else if (SCM_BIGP (n1)) {
+ if (SCM_INUMP (n2)) {
+ SCM_SWAP (n1, n2);
+ nn1 = SCM_INUM (n1);
+ goto intbig;
+ } else if (SCM_BIGP (n2)) {
+ if (SCM_NUMDIGS (n1) > SCM_NUMDIGS (n2)) {
+ SCM_SWAP (n1, n2);
+ }
+ return scm_big_test (SCM_BDIGITS (n1), SCM_NUMDIGS (n1),
+ SCM_BIGSIGN (n1), n2);
+ } else {
+ SCM_WRONG_TYPE_ARG (SCM_ARG2, n2);
+ }
+ } else {
+ SCM_WRONG_TYPE_ARG (SCM_ARG1, n1);
+ }
}
#undef FUNC_NAME
-GUILE_PROC (scm_logbit_p, "logbit?", 2, 0, 0,
- (SCM n1, SCM n2),
-"@example
-(logbit? index j) @equiv{} (logtest (integer-expt 2 index) j)
-
-(logbit? 0 #b1101) @result{} #t
-(logbit? 1 #b1101) @result{} #f
-(logbit? 2 #b1101) @result{} #t
-(logbit? 3 #b1101) @result{} #t
-(logbit? 4 #b1101) @result{} #f
-@end example")
+
+SCM_DEFINE (scm_logbit_p, "logbit?", 2, 0, 0,
+ (SCM index, SCM j),
+ "@example\n"
+ "(logbit? index j) @equiv{} (logtest (integer-expt 2 index) j)\n\n"
+ "(logbit? 0 #b1101) @result{} #t\n"
+ "(logbit? 1 #b1101) @result{} #f\n"
+ "(logbit? 2 #b1101) @result{} #t\n"
+ "(logbit? 3 #b1101) @result{} #t\n"
+ "(logbit? 4 #b1101) @result{} #f\n"
+ "@end example")
#define FUNC_NAME s_scm_logbit_p
{
- int i1, i2;
- SCM_VALIDATE_INUM_MIN_COPY(1,n1,0,i1);
- SCM_VALIDATE_INUM_COPY(2,n2,i2);
- return SCM_BOOL((1 << i1) & i2);
+ unsigned long int iindex;
+
+ SCM_VALIDATE_INUM_MIN (SCM_ARG1, index, 0);
+ iindex = (unsigned long int) SCM_INUM (index);
+
+ if (SCM_INUMP (j)) {
+ return SCM_BOOL ((1L << iindex) & SCM_INUM (j));
+ } else if (SCM_BIGP (j)) {
+ if (SCM_NUMDIGS (j) * SCM_BITSPERDIG < iindex) {
+ return SCM_BOOL_F;
+ } else if (SCM_BIGSIGN (j)) {
+ long num = -1;
+ scm_sizet i = 0;
+ SCM_BIGDIG * x = SCM_BDIGITS (j);
+ scm_sizet nx = iindex / SCM_BITSPERDIG;
+ while (1) {
+ num += x[i];
+ if (nx == i++) {
+ return SCM_BOOL (((1L << (iindex % SCM_BITSPERDIG)) & num) == 0);
+ } else if (num < 0) {
+ num = -1;
+ } else {
+ num = 0;
+ }
+ }
+ } else {
+ return SCM_BOOL (SCM_BDIGITS (j) [iindex / SCM_BITSPERDIG]
+ & (1L << (iindex % SCM_BITSPERDIG)));
+ }
+ } else {
+ SCM_WRONG_TYPE_ARG (SCM_ARG2, j);
+ }
}
#undef FUNC_NAME
-#endif
-GUILE_PROC (scm_lognot, "lognot", 1, 0, 0,
+
+SCM_DEFINE (scm_lognot, "lognot", 1, 0, 0,
(SCM n),
-"Returns the integer which is the 2s-complement of the integer argument.
-
-Example:
-@lisp
-(number->string (lognot #b10000000) 2)
- @result{} \"-10000001\"
-(number->string (lognot #b0) 2)
- @result{} \"-1\"
-@end lisp
-")
+ "Returns the integer which is the 2s-complement of the integer argument.\n\n"
+ "Example:\n"
+ "@lisp\n"
+ "(number->string (lognot #b10000000) 2)\n"
+ " @result{} \"-10000001\"\n"
+ "(number->string (lognot #b0) 2)\n"
+ " @result{} \"-1\"\n"
+ "@end lisp\n"
+ "")
#define FUNC_NAME s_scm_lognot
{
- SCM_VALIDATE_INUM(1,n);
return scm_difference (SCM_MAKINUM (-1L), n);
}
#undef FUNC_NAME
-GUILE_PROC (scm_integer_expt, "integer-expt", 2, 0, 0,
- (SCM z1, SCM z2),
-"Returns @var{n} raised to the non-negative integer exponent @var{k}.
-
-Example:
-@lisp
-(integer-expt 2 5)
- @result{} 32
-(integer-expt -3 3)
- @result{} -27
-@end lisp")
+SCM_DEFINE (scm_integer_expt, "integer-expt", 2, 0, 0,
+ (SCM n, SCM k),
+ "Returns @var{n} raised to the non-negative integer exponent @var{k}.\n\n"
+ "Example:\n"
+ "@lisp\n"
+ "(integer-expt 2 5)\n"
+ " @result{} 32\n"
+ "(integer-expt -3 3)\n"
+ " @result{} -27\n"
+ "@end lisp")
#define FUNC_NAME s_scm_integer_expt
{
SCM acc = SCM_MAKINUM (1L);
int i2;
#ifdef SCM_BIGDIG
- if (SCM_INUM0 == z1 || acc == z1)
- return z1;
- else if (SCM_MAKINUM (-1L) == z1)
- return SCM_BOOL_F == scm_even_p (z2) ? z1 : acc;
+ if (SCM_EQ_P (n, SCM_INUM0) || SCM_EQ_P (n, acc))
+ return n;
+ else if (SCM_EQ_P (n, SCM_MAKINUM (-1L)))
+ return SCM_FALSEP (scm_even_p (k)) ? n : acc;
#endif
- SCM_VALIDATE_INUM_COPY(2,z2,i2);
+ SCM_VALIDATE_ULONG_COPY (2,k,i2);
if (i2 < 0)
{
i2 = -i2;
- z1 = scm_divide (z1, SCM_UNDEFINED);
+ n = scm_divide (n, SCM_UNDEFINED);
}
while (1)
{
if (0 == i2)
return acc;
if (1 == i2)
- return scm_product (acc, z1);
+ return scm_product (acc, n);
if (i2 & 1)
- acc = scm_product (acc, z1);
- z1 = scm_product (z1, z1);
+ acc = scm_product (acc, n);
+ n = scm_product (n, n);
i2 >>= 1;
}
}
#undef FUNC_NAME
-GUILE_PROC (scm_ash, "ash", 2, 0, 0,
+SCM_DEFINE (scm_ash, "ash", 2, 0, 0,
(SCM n, SCM cnt),
-"Returns an integer equivalent to
-@code{(inexact->exact (floor (* @var{int} (expt 2 @var{count}))))}.@refill
-
-Example:
-@lisp
-(number->string (ash #b1 3) 2)
- @result{} "1000"
-(number->string (ash #b1010 -1) 2)
- @result{} "101"
-@end lisp")
+ "The function ash performs an arithmetic shift left by CNT bits\n"
+ "(or shift right, if CNT is negative). 'Arithmetic' means, that\n"
+ "the function does not guarantee to keep the bit structure of N,\n"
+ "but rather guarantees that the result will always be rounded\n"
+ "towards minus infinity. Therefore, the results of ash and a\n"
+ "corresponding bitwise shift will differ if N is negative.\n\n"
+ "Formally, the function returns an integer equivalent to\n"
+ "@code{(inexact->exact (floor (* N (expt 2 CNT))))}.@refill\n\n"
+ "Example:\n"
+ "@lisp\n"
+ "(number->string (ash #b1 3) 2)\n"
+ " @result{} \"1000\""
+ "(number->string (ash #b1010 -1) 2)"
+ " @result{} \"101\""
+ "@end lisp")
#define FUNC_NAME s_scm_ash
{
- /* GJB:FIXME:: what is going on here? */
- SCM res = SCM_INUM (n);
- SCM_VALIDATE_INUM(2,cnt);
+ long bits_to_shift;
+
+#ifndef SCM_BIGDIG
+ SCM_VALIDATE_INUM (1, n)
+#endif
+ SCM_VALIDATE_INUM (2, cnt);
+
+ bits_to_shift = SCM_INUM (cnt);
#ifdef SCM_BIGDIG
- if (cnt < 0)
- {
- res = scm_integer_expt (SCM_MAKINUM (2), SCM_MAKINUM (-SCM_INUM (cnt)));
- if (SCM_NFALSEP (scm_negative_p (n)))
- return scm_sum (SCM_MAKINUM (-1L),
- scm_quotient (scm_sum (SCM_MAKINUM (1L), n), res));
- else
- return scm_quotient (n, res);
- }
- else
+ if (bits_to_shift < 0) {
+ /* Shift right by abs(cnt) bits. This is realized as a division by
+ div:=2^abs(cnt). However, to guarantee the floor rounding, negative
+ values require some special treatment.
+ */
+ SCM div = scm_integer_expt (SCM_MAKINUM (2), SCM_MAKINUM (-bits_to_shift));
+ if (SCM_FALSEP (scm_negative_p (n)))
+ return scm_quotient (n, div);
+ else
+ return scm_sum (SCM_MAKINUM (-1L),
+ scm_quotient (scm_sum (SCM_MAKINUM (1L), n), div));
+ } else
+ /* Shift left is done by multiplication with 2^CNT */
return scm_product (n, scm_integer_expt (SCM_MAKINUM (2), cnt));
#else
- SCM_VALIDATE_INUM(1,n)
- cnt = SCM_INUM (cnt);
- if (cnt < 0)
- return SCM_MAKINUM (SCM_SRS (res, -cnt));
- res = SCM_MAKINUM (res << cnt);
- if (SCM_INUM (res) >> cnt != SCM_INUM (n))
- scm_num_overflow (FUNC_NAME);
- return res;
+ if (bits_to_shift < 0)
+ /* Signed right shift (SCM_SRS does it right) by abs(cnt) bits. */
+ return SCM_MAKINUM (SCM_SRS (SCM_INUM (n), -bits_to_shift));
+ else {
+ /* Shift left, but make sure not to leave the range of inums */
+ SCM res = SCM_MAKINUM (SCM_INUM (n) << cnt);
+ if (SCM_INUM (res) >> cnt != SCM_INUM (n))
+ scm_num_overflow (FUNC_NAME);
+ return res;
+ }
#endif
}
#undef FUNC_NAME
-/* GJB:FIXME: do not use SCMs as integers! */
-GUILE_PROC (scm_bit_extract, "bit-extract", 3, 0, 0,
+
+SCM_DEFINE (scm_bit_extract, "bit-extract", 3, 0, 0,
(SCM n, SCM start, SCM end),
-"Returns the integer composed of the @var{start} (inclusive) through
-@var{end} (exclusive) bits of @var{n}. The @var{start}th bit becomes
-the 0-th bit in the result.@refill
-
-Example:
-@lisp
-(number->string (bit-extract #b1101101010 0 4) 2)
- @result{} \"1010\"
-(number->string (bit-extract #b1101101010 4 9) 2)
- @result{} \"10110\"
-@end lisp")
+ "Returns the integer composed of the @var{start} (inclusive) through\n"
+ "@var{end} (exclusive) bits of @var{n}. The @var{start}th bit becomes\n"
+ "the 0-th bit in the result.@refill\n\n"
+ "Example:\n"
+ "@lisp\n"
+ "(number->string (bit-extract #b1101101010 0 4) 2)\n"
+ " @result{} \"1010\"\n"
+ "(number->string (bit-extract #b1101101010 4 9) 2)\n"
+ " @result{} \"10110\"\n"
+ "@end lisp")
#define FUNC_NAME s_scm_bit_extract
{
- SCM_VALIDATE_INUM(1,n);
- SCM_VALIDATE_INUM_MIN(2,start,0);
- SCM_VALIDATE_INUM_MIN(3,end,0);
- start = SCM_INUM (start);
- end = SCM_INUM (end);
- SCM_ASSERT (end >= start, SCM_MAKINUM (end), SCM_OUTOFRANGE, FUNC_NAME);
-#ifdef SCM_BIGDIG
- if (SCM_NINUMP (n))
- return
- scm_logand (scm_difference (scm_integer_expt (SCM_MAKINUM (2),
- SCM_MAKINUM (end - start)),
- SCM_MAKINUM (1L)),
- scm_ash (n, SCM_MAKINUM (-start)));
-#else
- SCM_VALIDATE_INUM(1,n);
-#endif
- return SCM_MAKINUM ((SCM_INUM (n) >> start) & ((1L << (end - start)) - 1));
+ int istart, iend;
+ SCM_VALIDATE_INUM_MIN_COPY (2,start,0,istart);
+ SCM_VALIDATE_INUM_MIN_COPY (3, end, 0, iend);
+ SCM_ASSERT_RANGE (3, end, (iend >= istart));
+
+ if (SCM_INUMP (n)) {
+ return SCM_MAKINUM ((SCM_INUM (n) >> istart) & ((1L << (iend - istart)) - 1));
+ } else if (SCM_BIGP (n)) {
+ SCM num1 = SCM_MAKINUM (1L);
+ SCM num2 = SCM_MAKINUM (2L);
+ SCM bits = SCM_MAKINUM (iend - istart);
+ SCM mask = scm_difference (scm_integer_expt (num2, bits), num1);
+ return scm_logand (mask, scm_ash (n, SCM_MAKINUM (-istart)));
+ } else {
+ SCM_WRONG_TYPE_ARG (SCM_ARG1, n);
+ }
}
#undef FUNC_NAME
+
static const char scm_logtab[] = {
0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4
};
-GUILE_PROC (scm_logcount, "logcount", 1, 0, 0,
+SCM_DEFINE (scm_logcount, "logcount", 1, 0, 0,
(SCM n),
-"Returns the number of bits in integer @var{n}. If integer is positive,
-the 1-bits in its binary representation are counted. If negative, the
-0-bits in its two's-complement binary representation are counted. If 0,
-0 is returned.
-
-Example:
-@lisp
-(logcount #b10101010)
- @result{} 4
-(logcount 0)
- @result{} 0
-(logcount -2)
- @result{} 1
-@end lisp")
+ "Returns the number of bits in integer @var{n}. If integer is positive,\n"
+ "the 1-bits in its binary representation are counted. If negative, the\n"
+ "0-bits in its two's-complement binary representation are counted. If 0,\n"
+ "0 is returned.\n\n"
+ "Example:\n"
+ "@lisp\n"
+ "(logcount #b10101010)\n"
+ " @result{} 4\n"
+ "(logcount 0)\n"
+ " @result{} 0\n"
+ "(logcount -2)\n"
+ " @result{} 1\n"
+ "@end lisp")
#define FUNC_NAME s_scm_logcount
{
- register unsigned long c = 0;
- register long nn;
-#ifdef SCM_BIGDIG
- if (SCM_NINUMP (n))
- {
- scm_sizet i;
- SCM_BIGDIG *ds, d;
- SCM_VALIDATE_BIGINT(1,n);
- if (SCM_BIGSIGN (n))
- return scm_logcount (scm_difference (SCM_MAKINUM (-1L), n));
- ds = SCM_BDIGITS (n);
- for (i = SCM_NUMDIGS (n); i--;)
- for (d = ds[i]; d; d >>= 4)
+ if (SCM_INUMP (n)) {
+ unsigned long int c = 0;
+ long int nn = SCM_INUM (n);
+ if (nn < 0) {
+ nn = -1 - nn;
+ };
+ while (nn) {
+ c += scm_logtab[15 & nn];
+ nn >>= 4;
+ };
+ return SCM_MAKINUM (c);
+ } else if (SCM_BIGP (n)) {
+ if (SCM_BIGSIGN (n)) {
+ return scm_logcount (scm_difference (SCM_MAKINUM (-1L), n));
+ } else {
+ unsigned long int c = 0;
+ scm_sizet i = SCM_NUMDIGS (n);
+ SCM_BIGDIG * ds = SCM_BDIGITS (n);
+ while (i--) {
+ SCM_BIGDIG d;
+ for (d = ds[i]; d; d >>= 4) {
c += scm_logtab[15 & d];
+ }
+ }
return SCM_MAKINUM (c);
}
-#else
- SCM_VALIDATE_INUM(1,n);
-#endif
- if ((nn = SCM_INUM (n)) < 0)
- nn = -1 - nn;
- for (; nn; nn >>= 4)
- c += scm_logtab[15 & nn];
- return SCM_MAKINUM (c);
+ } else {
+ SCM_WRONG_TYPE_ARG (SCM_ARG1, n);
+ }
}
#undef FUNC_NAME
0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4
};
-GUILE_PROC (scm_integer_length, "integer-length", 1, 0, 0,
+SCM_DEFINE (scm_integer_length, "integer-length", 1, 0, 0,
(SCM n),
-"Returns the number of bits neccessary to represent @var{n}.
-
-Example:
-@lisp
-(integer-length #b10101010)
- @result{} 8
-(integer-length 0)
- @result{} 0
-(integer-length #b1111)
- @result{} 4
-@end lisp")
+ "Returns the number of bits neccessary to represent @var{n}.\n\n"
+ "Example:\n"
+ "@lisp\n"
+ "(integer-length #b10101010)\n"
+ " @result{} 8\n"
+ "(integer-length 0)\n"
+ " @result{} 0\n"
+ "(integer-length #b1111)\n"
+ " @result{} 4\n"
+ "@end lisp")
#define FUNC_NAME s_scm_integer_length
{
- register unsigned long c = 0;
- register long nn;
- unsigned int l = 4;
-#ifdef SCM_BIGDIG
- if (SCM_NINUMP (n))
- {
- SCM_BIGDIG *ds, d;
- SCM_VALIDATE_BIGINT(1,n);
- if (SCM_BIGSIGN (n))
- return scm_integer_length (scm_difference (SCM_MAKINUM (-1L), n));
- ds = SCM_BDIGITS (n);
- d = ds[c = SCM_NUMDIGS (n) - 1];
- for (c *= SCM_BITSPERDIG; d; d >>= 4)
- {
- c += 4;
- l = scm_ilentab[15 & d];
- }
- return SCM_MAKINUM (c - 4 + l);
- }
-#else
- SCM_VALIDATE_INUM(1,n);
-#endif
- if ((nn = SCM_INUM (n)) < 0)
- nn = -1 - nn;
- for (; nn; nn >>= 4)
- {
+ if (SCM_INUMP (n)) {
+ unsigned long int c = 0;
+ unsigned int l = 4;
+ long int nn = SCM_INUM (n);
+ if (nn < 0) {
+ nn = -1 - nn;
+ };
+ while (nn) {
c += 4;
- l = scm_ilentab[15 & nn];
+ l = scm_ilentab [15 & nn];
+ nn >>= 4;
+ };
+ return SCM_MAKINUM (c - 4 + l);
+ } else if (SCM_BIGP (n)) {
+ if (SCM_BIGSIGN (n)) {
+ return scm_integer_length (scm_difference (SCM_MAKINUM (-1L), n));
+ } else {
+ unsigned long int digs = SCM_NUMDIGS (n) - 1;
+ unsigned long int c = digs * SCM_BITSPERDIG;
+ unsigned int l = 4;
+ SCM_BIGDIG * ds = SCM_BDIGITS (n);
+ SCM_BIGDIG d = ds [digs];
+ while (d) {
+ c += 4;
+ l = scm_ilentab [15 & d];
+ d >>= 4;
+ };
+ return SCM_MAKINUM (c - 4 + l);
}
- return SCM_MAKINUM (c - 4 + l);
+ } else {
+ SCM_WRONG_TYPE_ARG (SCM_ARG1, n);
+ }
}
#undef FUNC_NAME
SCM
scm_mkbig (scm_sizet nlen, int sign)
{
- SCM v = nlen;
- /* Cast to SCM to avoid signed/unsigned comparison warnings. */
- if (((v << 16) >> 16) != (SCM) nlen)
- scm_wta (SCM_MAKINUM (nlen), (char *) SCM_NALLOC, s_bignum);
+ SCM v;
+ /* Cast to long int to avoid signed/unsigned comparison warnings. */
+ if ((( ((long int) nlen) << SCM_BIGSIZEFIELD) >> SCM_BIGSIZEFIELD)
+ != (long int) nlen)
+ scm_memory_error (s_bignum);
+
SCM_NEWCELL (v);
SCM_DEFER_INTS;
SCM_SETCHARS (v, scm_must_malloc ((long) (nlen * sizeof (SCM_BIGDIG)),
s_bignum));
- SCM_SETNUMDIGS (v, nlen, sign ? scm_tc16_bigneg : scm_tc16_bigpos);
+ SCM_SETNUMDIGS (v, nlen, sign);
SCM_ALLOW_INTS;
return v;
}
SCM_BIGDIG *tmp = SCM_BDIGITS (b);
while (l--)
num = SCM_BIGUP (num) + tmp[l];
- if (SCM_TYP16 (b) == scm_tc16_bigpos)
+ if (!SCM_BIGSIGN (b))
{
if (SCM_POSFIXABLE (num))
return SCM_MAKINUM (num);
}
- else if (SCM_UNEGFIXABLE (num))
+ else if (num <= -SCM_MOST_NEGATIVE_FIXNUM)
return SCM_MAKINUM (-num);
return b;
}
scm_adjbig (SCM b, scm_sizet nlen)
{
scm_sizet nsiz = nlen;
- if (((nsiz << 16) >> 16) != nlen)
- scm_wta (scm_ulong2num (nsiz), (char *) SCM_NALLOC, s_adjbig);
+ if (((nsiz << SCM_BIGSIZEFIELD) >> SCM_BIGSIZEFIELD) != nlen)
+ scm_memory_error (s_adjbig);
SCM_DEFER_INTS;
{
= ((SCM_BIGDIG *)
scm_must_realloc ((char *) SCM_CHARS (b),
(long) (SCM_NUMDIGS (b) * sizeof (SCM_BIGDIG)),
- (long) (nsiz * sizeof (SCM_BIGDIG)), s_adjbig));
+ (long) (nsiz * sizeof (SCM_BIGDIG)), s_bignum));
SCM_SETCHARS (b, digits);
- SCM_SETNUMDIGS (b, nsiz, SCM_TYP16 (b));
+ SCM_SETNUMDIGS (b, nsiz, SCM_BIGSIGN (b));
}
SCM_ALLOW_INTS;
return b;
}
return ans;
}
-#endif
+#endif /* HAVE_LONG_LONGS */
SCM
scm_addbig (SCM_BIGDIG *x, scm_sizet nx, int xsgn, SCM bigy, int sgny)
{
/* Assumes nx <= SCM_NUMDIGS(bigy) */
- /* Assumes xsgn and sgny scm_equal either 0 or 0x0100 */
+ /* Assumes xsgn and sgny scm_equal either 0 or SCM_BIGSIGNFLAG */
long num = 0;
scm_sizet i = 0, ny = SCM_NUMDIGS (bigy);
SCM z = scm_copybig (bigy, SCM_BIGSIGN (bigy) ^ sgny);
{
num = 1;
i = 0;
- SCM_SETCAR (z, SCM_CAR (z) ^ 0x0100);
+ SCM_SET_CELL_WORD_0 (z, SCM_CELL_WORD_0 (z) ^ SCM_BIGSIGNFLAG);
do
{
num += (SCM_BIGRAD - 1) - zds[i];
}
-/* Sun's compiler complains about the fact that this function has an
- ANSI prototype in numbers.h, but a K&R declaration here, and the
- two specify different promotions for the third argument. I'm going
- to turn this into an ANSI declaration, and see if anyone complains
- about it not being K&R. */
-
unsigned int
-scm_divbigdig (SCM_BIGDIG * ds,
- scm_sizet h,
- SCM_BIGDIG div)
+scm_divbigdig (SCM_BIGDIG * ds, scm_sizet h, SCM_BIGDIG div)
{
register unsigned long t2 = 0;
while (h--)
-SCM
+static SCM
scm_divbigint (SCM x, long z, int sgn, int mode)
{
if (z < 0)
}
-SCM
+static SCM
scm_divbigbig (SCM_BIGDIG *x, scm_sizet nx, SCM_BIGDIG *y, scm_sizet ny, int sgn, int modes)
{
/* modes description
0 remainder
1 scm_modulo
2 quotient
- 3 quotient but returns 0 if division is not exact. */
+ 3 quotient but returns SCM_UNDEFINED if division is not exact. */
scm_sizet i = 0, j = 0;
long num = 0;
unsigned long t2 = 0;
case 2:
return SCM_INUM0; /* quotient is zero */
case 3:
- return 0; /* the division is not exact */
+ return SCM_UNDEFINED; /* the division is not exact */
}
z = scm_mkbig (nx == ny ? nx + 2 : nx + 1, sgn);
case 3: /* check that remainder==0 */
for (j = ny; j && !zds[j - 1]; --j);
if (j)
- return 0;
+ return SCM_UNDEFINED;
case 2: /* move quotient down in z */
j = (nx == ny ? nx + 2 : nx + 1) - ny;
for (i = 0; i < j; i++)
/*** NUMBERS -> STRINGS ***/
-#ifdef SCM_FLOATS
int scm_dblprec;
static const double fx[] =
{ 0.0, 5e-1, 5e-2, 5e-3, 5e-4, 5e-5,
iflo2str (SCM flt, char *str)
{
scm_sizet i;
-#ifdef SCM_SINGLES
- if (SCM_SINGP (flt))
- i = idbl2str (SCM_FLO (flt), str);
+ if (SCM_SLOPPY_REALP (flt))
+ i = idbl2str (SCM_REAL_VALUE (flt), str);
else
-#endif
- i = idbl2str (SCM_REAL (flt), str);
- if (SCM_CPLXP (flt))
{
- if (0 <= SCM_IMAG (flt)) /* jeh */
- str[i++] = '+'; /* jeh */
- i += idbl2str (SCM_IMAG (flt), &str[i]);
- str[i++] = 'i';
+ i = idbl2str (SCM_COMPLEX_REAL (flt), str);
+ if (SCM_COMPLEX_IMAG (flt) != 0.0)
+ {
+ if (0 <= SCM_COMPLEX_IMAG (flt))
+ str[i++] = '+';
+ i += idbl2str (SCM_COMPLEX_IMAG (flt), &str[i]);
+ str[i++] = 'i';
+ }
}
return i;
}
-#endif /* SCM_FLOATS */
/* convert a long to a string (unterminated). returns the number of
characters in the result.
radpow *= radix;
radct++;
}
- s[0] = scm_tc16_bigneg == SCM_TYP16 (b) ? '-' : '+';
+ s[0] = SCM_BIGSIGN (b) ? '-' : '+';
while ((i || radmod) && j)
{
if (k == 0)
for (i = j; j < SCM_LENGTH (ss); j++)
s[ch + j - i] = s[j]; /* jeh */
scm_vector_set_length_x (ss, /* jeh */
- (SCM) SCM_MAKINUM (ch + SCM_LENGTH (ss) - i));
+ SCM_MAKINUM (ch + SCM_LENGTH (ss) - i));
}
return scm_return_first (ss, t);
#endif
-GUILE_PROC (scm_number_to_string, "number->string", 1, 1, 0,
- (SCM x, SCM radix),
-"")
+SCM_DEFINE (scm_number_to_string, "number->string", 1, 1, 0,
+ (SCM n, SCM radix),
+ "Return a string holding the external representation of the\n"
+ "number N in the given RADIX. If N is inexact, a radix of 10\n"
+ "will be used.")
#define FUNC_NAME s_scm_number_to_string
{
int base;
- SCM_VALIDATE_INUM_MIN_DEF_COPY(2,radix,2,10,base);
-#ifdef SCM_FLOATS
- if (SCM_NINUMP (x))
- {
- char num_buf[SCM_FLOBUFLEN];
-#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (x), badx);
- if (SCM_BIGP (x))
- return big2str (x, (unsigned int) base);
-#ifndef SCM_RECKLESS
- if (!SCM_INEXP (x))
- {
- badx:
- SCM_WTA (1, x);
- }
-#endif
-#else
- SCM_ASSERT (SCM_INEXP (x),
- x, SCM_ARG1, s_number_to_string);
-#endif
- return scm_makfromstr (num_buf, iflo2str (x, num_buf), 0);
- }
-#else
-#ifdef SCM_BIGDIG
- if (SCM_NINUMP (x))
- {
- SCM_ASSERT (SCM_BIGP (x),
- x, SCM_ARG1, s_number_to_string);
- return big2str (x, (unsigned int) base);
- }
-#else
- SCM_ASSERT (SCM_INUMP (x), x, SCM_ARG1, s_number_to_string);
-#endif
-#endif
- {
- char num_buf[SCM_INTBUFLEN];
- return scm_makfromstr (num_buf,
- scm_iint2str (SCM_INUM (x),
- base,
- num_buf),
- 0);
+
+ if (SCM_UNBNDP (radix)) {
+ base = 10;
+ } else {
+ SCM_VALIDATE_INUM (2, radix);
+ base = SCM_INUM (radix);
+ SCM_ASSERT_RANGE (2, radix, base >= 2);
+ }
+
+ if (SCM_INUMP (n)) {
+ char num_buf [SCM_INTBUFLEN];
+ scm_sizet length = scm_iint2str (SCM_INUM (n), base, num_buf);
+ return scm_makfromstr (num_buf, length, 0);
+ } else if (SCM_BIGP (n)) {
+ return big2str (n, (unsigned int) base);
+ } else if (SCM_INEXACTP (n)) {
+ char num_buf [SCM_FLOBUFLEN];
+ return scm_makfromstr (num_buf, iflo2str (n, num_buf), 0);
+ } else {
+ SCM_WRONG_TYPE_ARG (1, n);
}
}
#undef FUNC_NAME
/* These print routines are stubbed here so that scm_repl.c doesn't need
- SCM_FLOATS or SCM_BIGDIGs conditionals */
+ SCM_BIGDIG conditionals */
int
-scm_floprint (SCM sexp, SCM port, scm_print_state *pstate)
+scm_print_real (SCM sexp, SCM port, scm_print_state *pstate)
{
-#ifdef SCM_FLOATS
char num_buf[SCM_FLOBUFLEN];
scm_lfwrite (num_buf, iflo2str (sexp, num_buf), port);
-#else
- scm_ipruk ("float", sexp, port);
-#endif
return !0;
}
-
+int
+scm_print_complex (SCM sexp, SCM port, scm_print_state *pstate)
+{
+ char num_buf[SCM_FLOBUFLEN];
+ scm_lfwrite (num_buf, iflo2str (sexp, num_buf), port);
+ return !0;
+}
int
scm_bigprint (SCM exp, SCM port, scm_print_state *pstate)
return scm_adjbig (res, blen);
}
-#ifdef SCM_FLOATS
-
SCM
scm_istr2flo (char *str, long len, long radix)
{
return SCM_BOOL_F; /* must have leading sign */
if (++i < len)
return SCM_BOOL_F; /* `i' not last character */
- return scm_makdbl (0.0, lead_sgn);
+ return scm_make_complex (0.0, lead_sgn);
}
do
{ /* check initial digits */
{
case DIGITS:
expon = expon * 10 + c - '0';
- if (expon > MAXEXP)
+ if (expon > SCM_MAXEXP)
return SCM_BOOL_F; /* exponent too large */
break;
default:
if (lead_sgn == -1.0)
res = -res;
if (i == len)
- return scm_makdbl (res, 0.0);
+ return scm_make_real (res);
if (str[i] == 'i' || str[i] == 'I')
{ /* pure imaginary number */
return SCM_BOOL_F; /* must have leading sign */
if (++i < len)
return SCM_BOOL_F; /* `i' not last character */
- return scm_makdbl (0.0, res);
+ return scm_make_complex (0.0, res);
}
switch (str[i++])
{ /* polar input for complex number */
/* get a `real' for scm_angle */
second = scm_istr2flo (&str[i], (long) (len - i), radix);
- if (!SCM_INEXP (second))
+ if (!SCM_SLOPPY_INEXACTP (second))
return SCM_BOOL_F; /* not `real' */
- if (SCM_CPLXP (second))
+ if (SCM_SLOPPY_COMPLEXP (second))
return SCM_BOOL_F; /* not `real' */
- tmp = SCM_REALPART (second);
- return scm_makdbl (res * cos (tmp), res * sin (tmp));
+ tmp = SCM_REAL_VALUE (second);
+ return scm_make_complex (res * cos (tmp), res * sin (tmp));
}
default:
return SCM_BOOL_F;
return SCM_BOOL_F;
/* handles `x+i' and `x-i' */
if (i == (len - 1))
- return scm_makdbl (res, lead_sgn);
+ return scm_make_complex (res, lead_sgn);
/* get a `ureal' for complex part */
second = scm_istr2flo (&str[i], (long) ((len - i) - 1), radix);
- if (!SCM_INEXP (second))
+ if (!SCM_INEXACTP (second))
return SCM_BOOL_F; /* not `ureal' */
- if (SCM_CPLXP (second))
+ if (SCM_SLOPPY_COMPLEXP (second))
return SCM_BOOL_F; /* not `ureal' */
- tmp = SCM_REALPART (second);
+ tmp = SCM_REAL_VALUE (second);
if (tmp < 0.0)
return SCM_BOOL_F; /* not `ureal' */
- return scm_makdbl (res, (lead_sgn * tmp));
+ return scm_make_complex (res, (lead_sgn * tmp));
}
-#endif /* SCM_FLOATS */
res = scm_istr2int (&str[i], len - i, radix);
if (SCM_NFALSEP (res))
return res;
-#ifdef SCM_FLOATS
case 2:
return scm_istr2flo (&str[i], len - i, radix);
-#endif
}
return SCM_BOOL_F;
}
-GUILE_PROC (scm_string_to_number, "string->number", 1, 1, 0,
- (SCM str, SCM radix),
-"")
+SCM_DEFINE (scm_string_to_number, "string->number", 1, 1, 0,
+ (SCM string, SCM radix),
+ "Returns a number of the maximally precise representation\n"
+ "expressed by the given STRING. RADIX must be an exact integer,\n"
+ "either 2, 8, 10, or 16. If supplied, RADIX is a default radix\n"
+ "that may be overridden by an explicit radix prefix in STRING\n"
+ "(e.g. \"#o177\"). If RADIX is not supplied, then the default\n"
+ "radix is 10. If string is not a syntactically valid notation\n"
+ "for a number, then `string->number' returns #f. (r5rs)")
#define FUNC_NAME s_scm_string_to_number
{
SCM answer;
int base;
- SCM_VALIDATE_ROSTRING(1,str);
- SCM_VALIDATE_INUM_MIN_DEF_COPY(2,radix,2,10,base);
- answer = scm_istring2number (SCM_ROCHARS (str),
- SCM_ROLENGTH (str),
+ SCM_VALIDATE_ROSTRING (1,string);
+ SCM_VALIDATE_INUM_MIN_DEF_COPY (2,radix,2,10,base);
+ answer = scm_istring2number (SCM_ROCHARS (string),
+ SCM_ROLENGTH (string),
base);
- return scm_return_first (answer, str);
+ return scm_return_first (answer, string);
}
#undef FUNC_NAME
/*** END strs->nums ***/
-#ifdef SCM_FLOATS
SCM
-scm_makdbl (double x, double y)
+scm_make_real (double x)
{
SCM z;
- if ((y == 0.0) && (x == 0.0))
- return scm_flo0;
- SCM_DEFER_INTS;
- if (y == 0.0)
- {
-#ifdef SCM_SINGLES
- float fx = x;
-#ifndef SCM_SINGLESONLY
- if ((-FLTMAX < x) && (x < FLTMAX) && (fx == x))
-#endif
- {
- SCM_NEWSMOB(z,scm_tc_flo,NULL);
- SCM_FLO (z) = x;
- SCM_ALLOW_INTS;
- return z;
- }
-#endif /* def SCM_SINGLES */
- SCM_NEWSMOB(z,scm_tc_dblr,scm_must_malloc (1L * sizeof (double), "real"));
- }
- else
- {
- SCM_NEWSMOB(z,scm_tc_dblc,scm_must_malloc (2L * sizeof (double), "comkplex"));
- SCM_IMAG (z) = y;
- }
- SCM_REAL (z) = x;
- SCM_ALLOW_INTS;
+ SCM_NEWCELL2 (z);
+ SCM_SET_CELL_TYPE (z, scm_tc16_real);
+ SCM_REAL_VALUE (z) = x;
return z;
}
-#endif
+SCM
+scm_make_complex (double x, double y)
+{
+ if (y == 0.0) {
+ return scm_make_real (x);
+ } else {
+ SCM z;
+ SCM_NEWSMOB (z, scm_tc16_complex, scm_must_malloc (2L * sizeof (double), "complex"));
+ SCM_COMPLEX_REAL (z) = x;
+ SCM_COMPLEX_IMAG (z) = y;
+ return z;
+ }
+}
+
SCM
scm_bigequal (SCM x, SCM y)
return SCM_BOOL_F;
}
-
-
SCM
-scm_floequal (SCM x, SCM y)
+scm_real_equalp (SCM x, SCM y)
{
-#ifdef SCM_FLOATS
- if (SCM_REALPART (x) != SCM_REALPART (y))
- return SCM_BOOL_F;
- if (!(SCM_CPLXP (x) && (SCM_IMAG (x) != SCM_IMAG (y))))
- return SCM_BOOL_T;
-#endif
- return SCM_BOOL_F;
+ return SCM_BOOL (SCM_REAL_VALUE (x) == SCM_REAL_VALUE (y));
}
+SCM
+scm_complex_equalp (SCM x, SCM y)
+{
+ return SCM_BOOL (SCM_COMPLEX_REAL (x) == SCM_COMPLEX_REAL (y)
+ && SCM_COMPLEX_IMAG (x) == SCM_COMPLEX_IMAG (y));
+}
SCM_REGISTER_PROC (s_number_p, "number?", 1, 0, 0, scm_number_p);
-GUILE_PROC (scm_number_p, "complex?", 1, 0, 0,
+SCM_DEFINE (scm_number_p, "complex?", 1, 0, 0,
(SCM x),
-"")
+ "Return #t if X is a complex number, #f else. Note that the\n"
+ "sets of real, rational and integer values form subsets of the\n"
+ "set of complex numbers, i. e. the predicate will also be\n"
+ "fulfilled if X is a real, rational or integer number.")
#define FUNC_NAME s_scm_number_p
{
- if (SCM_INUMP (x))
- return SCM_BOOL_T;
-#ifdef SCM_FLOATS
- if (SCM_NUMP (x))
- return SCM_BOOL_T;
-#else
-#ifdef SCM_BIGDIG
- if (SCM_NUMP (x))
- return SCM_BOOL_T;
-#endif
-#endif
- return SCM_BOOL_F;
+ return SCM_BOOL (SCM_NUMBERP (x));
}
#undef FUNC_NAME
-
-#ifdef SCM_FLOATS
SCM_REGISTER_PROC (s_real_p, "real?", 1, 0, 0, scm_real_p);
-
-GUILE_PROC (scm_real_p, "rational?", 1, 0, 0,
+SCM_DEFINE (scm_real_p, "rational?", 1, 0, 0,
(SCM x),
-"")
+ "Return #t if X is a rational number, #f else. Note that the\n"
+ "set of integer values forms a subset of the set of rational\n"
+ "numbers, i. e. the predicate will also be fulfilled if X is an\n"
+ "integer number.")
#define FUNC_NAME s_scm_real_p
{
- if (SCM_INUMP (x))
+ if (SCM_INUMP (x)) {
return SCM_BOOL_T;
- if (SCM_IMP (x))
+ } else if (SCM_IMP (x)) {
return SCM_BOOL_F;
- if (SCM_REALP (x))
+ } else if (SCM_SLOPPY_REALP (x)) {
return SCM_BOOL_T;
-#ifdef SCM_BIGDIG
- if (SCM_BIGP (x))
+ } else if (SCM_BIGP (x)) {
return SCM_BOOL_T;
-#endif
- return SCM_BOOL_F;
+ } else {
+ return SCM_BOOL_F;
+ }
}
#undef FUNC_NAME
-
-GUILE_PROC (scm_integer_p, "integer?", 1, 0, 0,
+SCM_DEFINE (scm_integer_p, "integer?", 1, 0, 0,
(SCM x),
-"")
+ "Return #t if X is an integer number, #f else.")
#define FUNC_NAME s_scm_integer_p
{
double r;
return SCM_BOOL_T;
if (SCM_IMP (x))
return SCM_BOOL_F;
-#ifdef SCM_BIGDIG
if (SCM_BIGP (x))
return SCM_BOOL_T;
-#endif
- if (!SCM_INEXP (x))
+ if (!SCM_SLOPPY_INEXACTP (x))
return SCM_BOOL_F;
- if (SCM_CPLXP (x))
+ if (SCM_SLOPPY_COMPLEXP (x))
return SCM_BOOL_F;
- r = SCM_REALPART (x);
+ r = SCM_REAL_VALUE (x);
if (r == floor (r))
return SCM_BOOL_T;
return SCM_BOOL_F;
#undef FUNC_NAME
-
-#endif /* SCM_FLOATS */
-
-GUILE_PROC (scm_inexact_p, "inexact?", 1, 0, 0,
+SCM_DEFINE (scm_inexact_p, "inexact?", 1, 0, 0,
(SCM x),
-"")
+ "Return #t if X is an inexact number, #f else.")
#define FUNC_NAME s_scm_inexact_p
{
-#ifdef SCM_FLOATS
- if (SCM_INEXP (x))
- return SCM_BOOL_T;
-#endif
- return SCM_BOOL_F;
+ return SCM_BOOL (SCM_INEXACTP (x));
}
#undef FUNC_NAME
-
-
SCM_GPROC1 (s_eq_p, "=", scm_tc7_rpsubr, scm_num_eq_p, g_eq_p);
SCM
scm_num_eq_p (SCM x, SCM y)
{
-#ifdef SCM_FLOATS
- SCM t;
- if (SCM_NINUMP (x))
- {
-#ifdef SCM_BIGDIG
- if (!SCM_NIMP (x))
- {
- badx:
- SCM_WTA_DISPATCH_2 (g_eq_p, x, y, SCM_ARG1, s_eq_p);
- }
- if (SCM_BIGP (x))
- {
- if (SCM_INUMP (y))
- return SCM_BOOL_F;
- SCM_ASRTGO (SCM_NIMP (y), bady);
- if (SCM_BIGP (y))
- return SCM_BOOL(0 == scm_bigcomp (x, y));
- SCM_ASRTGO (SCM_INEXP (y), bady);
- bigreal:
- return ((SCM_REALP (y) && (scm_big2dbl (x) == SCM_REALPART (y)))
- ? SCM_BOOL_T
- : SCM_BOOL_F);
- }
- SCM_ASRTGO (SCM_INEXP (x), badx);
-#else
- SCM_GASSERT2 (SCM_INEXP (x),
- g_eq_p, x, y, SCM_ARG1, s_eq_p);
-#endif
- if (SCM_INUMP (y))
- {
- t = x;
- x = y;
- y = t;
- goto realint;
- }
-#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (y), bady);
- if (SCM_BIGP (y))
- {
- t = x;
- x = y;
- y = t;
- goto bigreal;
- }
- SCM_ASRTGO (SCM_INEXP (y), bady);
-#else
- SCM_ASRTGO (SCM_INEXP (y), bady);
-#endif
- if (SCM_REALPART (x) != SCM_REALPART (y))
- return SCM_BOOL_F;
- if (SCM_CPLXP (x))
- return ((SCM_CPLXP (y) && (SCM_IMAG (x) == SCM_IMAG (y)))
- ? SCM_BOOL_T
- : SCM_BOOL_F);
- return SCM_NEGATE_BOOL(SCM_CPLXP (y));
- }
- if (SCM_NINUMP (y))
- {
-#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (y), bady);
- if (SCM_BIGP (y))
- return SCM_BOOL_F;
- if (!SCM_INEXP (y))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_eq_p, x, y, SCM_ARGn, s_eq_p);
- }
-#else
- if (!SCM_INEXP (y))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_eq_p, x, y, SCM_ARGn, s_eq_p);
- }
-#endif
- realint:
- return ((SCM_REALP (y) && (((double) SCM_INUM (x)) == SCM_REALPART (y)))
- ? SCM_BOOL_T
- : SCM_BOOL_F);
- }
-#else
-#ifdef SCM_BIGDIG
- if (SCM_NINUMP (x))
- {
- SCM_GASSERT2 (SCM_BIGP (x),
- g_eq_p, x, y, SCM_ARG1, s_eq_p);
- if (SCM_INUMP (y))
- return SCM_BOOL_F;
- SCM_ASRTGO (SCM_BIGP (y), bady);
- return SCM_BOOL(0 == scm_bigcomp (x, y));
- }
- if (SCM_NINUMP (y))
- {
- if (!SCM_BIGP (y))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_eq_p, x, y, SCM_ARGn, s_eq_p);
- }
+ if (SCM_INUMP (x)) {
+ long xx = SCM_INUM (x);
+ if (SCM_INUMP (y)) {
+ long yy = SCM_INUM (y);
+ return SCM_BOOL (xx == yy);
+ } else if (SCM_BIGP (y)) {
return SCM_BOOL_F;
- }
-#else
- SCM_GASSERT2 (SCM_INUMP (x), g_eq_p, x, y, SCM_ARG1, s_eq_p);
- SCM_GASSERT2 (SCM_INUMP (y), g_eq_p, x, y, SCM_ARGn, s_eq_p);
-#endif
-#endif
- return SCM_BOOL((long) x == (long) y);
+ } else if (SCM_REALP (y)) {
+ return SCM_BOOL ((double) xx == SCM_REAL_VALUE (y));
+ } else if (SCM_COMPLEXP (y)) {
+ return SCM_BOOL (((double) xx == SCM_COMPLEX_REAL (y))
+ && (0.0 == SCM_COMPLEX_IMAG (y)));
+ } else {
+ SCM_WTA_DISPATCH_2 (g_eq_p, x, y, SCM_ARGn, s_eq_p);
+ }
+ } else if (SCM_BIGP (x)) {
+ if (SCM_INUMP (y)) {
+ return SCM_BOOL_F;
+ } else if (SCM_BIGP (y)) {
+ return SCM_BOOL (0 == scm_bigcomp (x, y));
+ } else if (SCM_REALP (y)) {
+ return SCM_BOOL (scm_big2dbl (x) == SCM_REAL_VALUE (y));
+ } else if (SCM_COMPLEXP (y)) {
+ return SCM_BOOL ((scm_big2dbl (x) == SCM_COMPLEX_REAL (y))
+ && (0.0 == SCM_COMPLEX_IMAG (y)));
+ } else {
+ SCM_WTA_DISPATCH_2 (g_eq_p, x, y, SCM_ARGn, s_eq_p);
+ }
+ } else if (SCM_REALP (x)) {
+ if (SCM_INUMP (y)) {
+ return SCM_BOOL (SCM_REAL_VALUE (x) == (double) SCM_INUM (y));
+ } else if (SCM_BIGP (y)) {
+ return SCM_BOOL (SCM_REAL_VALUE (x) == scm_big2dbl (y));
+ } else if (SCM_REALP (y)) {
+ return SCM_BOOL (SCM_REAL_VALUE (x) == SCM_REAL_VALUE (y));
+ } else if (SCM_COMPLEXP (y)) {
+ return SCM_BOOL ((SCM_REAL_VALUE (x) == SCM_COMPLEX_REAL (y))
+ && (0.0 == SCM_COMPLEX_IMAG (y)));
+ } else {
+ SCM_WTA_DISPATCH_2 (g_eq_p, x, y, SCM_ARGn, s_eq_p);
+ }
+ } else if (SCM_COMPLEXP (x)) {
+ if (SCM_INUMP (y)) {
+ return SCM_BOOL ((SCM_COMPLEX_REAL (x) == (double) SCM_INUM (y))
+ && (SCM_COMPLEX_IMAG (x) == 0.0));
+ } else if (SCM_BIGP (y)) {
+ return SCM_BOOL ((SCM_COMPLEX_REAL (x) == scm_big2dbl (y))
+ && (SCM_COMPLEX_IMAG (x) == 0.0));
+ } else if (SCM_REALP (y)) {
+ return SCM_BOOL ((SCM_COMPLEX_REAL (x) == SCM_REAL_VALUE (y))
+ && (SCM_COMPLEX_IMAG (x) == 0.0));
+ } else if (SCM_COMPLEXP (y)) {
+ return SCM_BOOL ((SCM_COMPLEX_REAL (x) == SCM_COMPLEX_REAL (y))
+ && (SCM_COMPLEX_IMAG (x) == SCM_COMPLEX_IMAG (y)));
+ } else {
+ SCM_WTA_DISPATCH_2 (g_eq_p, x, y, SCM_ARGn, s_eq_p);
+ }
+ } else {
+ SCM_WTA_DISPATCH_2 (g_eq_p, x, y, SCM_ARG1, s_eq_p);
+ }
}
-
SCM_GPROC1 (s_less_p, "<", scm_tc7_rpsubr, scm_less_p, g_less_p);
SCM
scm_less_p (SCM x, SCM y)
{
-#ifdef SCM_FLOATS
- if (SCM_NINUMP (x))
- {
-#ifdef SCM_BIGDIG
- if (!SCM_NIMP (x))
- {
- badx:
- SCM_WTA_DISPATCH_2 (g_less_p, x, y, SCM_ARG1, s_less_p);
- }
- if (SCM_BIGP (x))
- {
- if (SCM_INUMP (y))
- return SCM_BOOL(SCM_BIGSIGN (x));
- SCM_ASRTGO (SCM_NIMP (y), bady);
- if (SCM_BIGP (y))
- return SCM_BOOL(1 == scm_bigcomp (x, y));
- SCM_ASRTGO (SCM_REALP (y), bady);
- return ((scm_big2dbl (x) < SCM_REALPART (y))
- ? SCM_BOOL_T
- : SCM_BOOL_F);
- }
- SCM_ASRTGO (SCM_REALP (x), badx);
-#else
- SCM_GASSERT2 (SCM_REALP (x),
- g_less_p, x, y, SCM_ARG1, s_less_p);
-#endif
- if (SCM_INUMP (y))
- return ((SCM_REALPART (x) < ((double) SCM_INUM (y)))
- ? SCM_BOOL_T
- : SCM_BOOL_F);
-#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (y), bady);
- if (SCM_BIGP (y))
- return SCM_BOOL(SCM_REALPART (x) < scm_big2dbl (y));
- SCM_ASRTGO (SCM_REALP (y), bady);
-#else
- SCM_ASRTGO (SCM_REALP (y), bady);
-#endif
- return SCM_BOOL(SCM_REALPART (x) < SCM_REALPART (y));
- }
- if (SCM_NINUMP (y))
- {
-#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (y), bady);
- if (SCM_BIGP (y))
- return SCM_NEGATE_BOOL(SCM_BIGSIGN (y));
- if (!SCM_REALP (y))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_less_p, x, y, SCM_ARGn, s_less_p);
- }
-#else
- if (!SCM_REALP (y))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_less_p, x, y, SCM_ARGn, s_less_p);
- }
-#endif
- return ((((double) SCM_INUM (x)) < SCM_REALPART (y))
- ? SCM_BOOL_T
- : SCM_BOOL_F);
- }
-#else
-#ifdef SCM_BIGDIG
- if (SCM_NINUMP (x))
- {
- SCM_GASSERT2 (SCM_BIGP (x),
- g_less_p, x, y, SCM_ARG1, s_less_p);
- if (SCM_INUMP (y))
- return SCM_BOOL(SCM_BIGSIGN (x));
- SCM_ASRTGO (SCM_BIGP (y), bady);
- return SCM_BOOL(1 == scm_bigcomp (x, y));
- }
- if (SCM_NINUMP (y))
- {
- if (!SCM_BIGP (y))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_less_p, x, y, SCM_ARGn, s_less_p);
- }
- return SCM_NEGATE_BOOL(SCM_BIGSIGN (y));
- }
-#else
- SCM_GASSERT2 (SCM_INUMP (x), g_less_p, x, y, SCM_ARG1, s_less_p);
- SCM_GASSERT2 (SCM_INUMP (y), g_less_p, x, y, SCM_ARGn, s_less_p);
-#endif
-#endif
- return SCM_BOOL((long) x < (long) y);
+ if (SCM_INUMP (x)) {
+ long xx = SCM_INUM (x);
+ if (SCM_INUMP (y)) {
+ long yy = SCM_INUM (y);
+ return SCM_BOOL (xx < yy);
+ } else if (SCM_BIGP (y)) {
+ return SCM_BOOL (!SCM_BIGSIGN (y));
+ } else if (SCM_REALP (y)) {
+ return SCM_BOOL ((double) xx < SCM_REAL_VALUE (y));
+ } else {
+ SCM_WTA_DISPATCH_2 (g_less_p, x, y, SCM_ARGn, s_less_p);
+ }
+ } else if (SCM_BIGP (x)) {
+ if (SCM_INUMP (y)) {
+ return SCM_BOOL (SCM_BIGSIGN (x));
+ } else if (SCM_BIGP (y)) {
+ return SCM_BOOL (1 == scm_bigcomp (x, y));
+ } else if (SCM_REALP (y)) {
+ return SCM_BOOL (scm_big2dbl (x) < SCM_REAL_VALUE (y));
+ } else {
+ SCM_WTA_DISPATCH_2 (g_less_p, x, y, SCM_ARGn, s_less_p);
+ }
+ } else if (SCM_REALP (x)) {
+ if (SCM_INUMP (y)) {
+ return SCM_BOOL (SCM_REAL_VALUE (x) < (double) SCM_INUM (y));
+ } else if (SCM_BIGP (y)) {
+ return SCM_BOOL (SCM_REAL_VALUE (x) < scm_big2dbl (y));
+ } else if (SCM_REALP (y)) {
+ return SCM_BOOL (SCM_REAL_VALUE (x) < SCM_REAL_VALUE (y));
+ } else {
+ SCM_WTA_DISPATCH_2 (g_less_p, x, y, SCM_ARGn, s_less_p);
+ }
+ } else {
+ SCM_WTA_DISPATCH_2 (g_less_p, x, y, SCM_ARG1, s_less_p);
+ }
}
-GUILE_PROC1 (scm_gr_p, ">", scm_tc7_rpsubr,
+SCM_DEFINE1 (scm_gr_p, ">", scm_tc7_rpsubr,
(SCM x, SCM y),
-"")
+ "Return #t if the list of parameters is monotonically\n"
+ "increasing.")
#define FUNC_NAME s_scm_gr_p
{
return scm_less_p (y, x);
#undef FUNC_NAME
-
-GUILE_PROC1 (scm_leq_p, "<=", scm_tc7_rpsubr,
+SCM_DEFINE1 (scm_leq_p, "<=", scm_tc7_rpsubr,
(SCM x, SCM y),
-"")
+ "Return #t if the list of parameters is monotonically\n"
+ "non-decreasing.")
#define FUNC_NAME s_scm_leq_p
{
return SCM_BOOL_NOT (scm_less_p (y, x));
#undef FUNC_NAME
-
-GUILE_PROC1 (scm_geq_p, ">=", scm_tc7_rpsubr,
+SCM_DEFINE1 (scm_geq_p, ">=", scm_tc7_rpsubr,
(SCM x, SCM y),
-"")
+ "Return #t if the list of parameters is monotonically\n"
+ "non-increasing.")
#define FUNC_NAME s_scm_geq_p
{
return SCM_BOOL_NOT (scm_less_p (x, y));
#undef FUNC_NAME
-
SCM_GPROC (s_zero_p, "zero?", 1, 0, 0, scm_zero_p, g_zero_p);
SCM
scm_zero_p (SCM z)
{
-#ifdef SCM_FLOATS
- if (SCM_NINUMP (z))
- {
-#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (z), badz);
- if (SCM_BIGP (z))
- return SCM_BOOL_F;
- if (!SCM_INEXP (z))
- {
- badz:
- SCM_WTA_DISPATCH_1 (g_zero_p, z, SCM_ARG1, s_zero_p);
- }
-#else
- SCM_GASSERT1 (SCM_INEXP (z),
- g_zero_p, z, SCM_ARG1, s_zero_p);
-#endif
- return SCM_BOOL(z == scm_flo0);
- }
-#else
-#ifdef SCM_BIGDIG
- if (SCM_NINUMP (z))
- {
- SCM_GASSERT1 (SCM_BIGP (z),
- g_zero_p, z, SCM_ARG1, s_zero_p);
- return SCM_BOOL_F;
- }
-#else
- SCM_GASSERT1 (SCM_INUMP (z), g_zero_p, z, SCM_ARG1, s_zero_p);
-#endif
-#endif
- return SCM_BOOL(z == SCM_INUM0);
+ if (SCM_INUMP (z)) {
+ return SCM_BOOL (SCM_EQ_P (z, SCM_INUM0));
+ } else if (SCM_BIGP (z)) {
+ return SCM_BOOL_F;
+ } else if (SCM_REALP (z)) {
+ return SCM_BOOL (SCM_REAL_VALUE (z) == 0.0);
+ } else if (SCM_COMPLEXP (z)) {
+ return SCM_BOOL (SCM_COMPLEX_REAL (z) == 0.0
+ && SCM_COMPLEX_IMAG (z) == 0.0);
+ } else {
+ SCM_WTA_DISPATCH_1 (g_zero_p, z, SCM_ARG1, s_zero_p);
+ }
}
-
SCM_GPROC (s_positive_p, "positive?", 1, 0, 0, scm_positive_p, g_positive_p);
SCM
scm_positive_p (SCM x)
{
-#ifdef SCM_FLOATS
- if (SCM_NINUMP (x))
- {
-#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (x), badx);
- if (SCM_BIGP (x))
- return SCM_BOOL(SCM_TYP16 (x) == scm_tc16_bigpos);
- if (!SCM_REALP (x))
- {
- badx:
- SCM_WTA_DISPATCH_1 (g_positive_p, x, SCM_ARG1, s_positive_p);
- }
-#else
- SCM_GASSERT1 (SCM_REALP (x),
- g_positive_p, x, SCM_ARG1, s_positive_p);
-#endif
- return SCM_BOOL(SCM_REALPART (x) > 0.0);
- }
-#else
-#ifdef SCM_BIGDIG
- if (SCM_NINUMP (x))
- {
- SCM_GASSERT1 (SCM_BIGP (x),
- g_positive_p, x, SCM_ARG1, s_positive_p);
- return SCM_BOOL(SCM_TYP16 (x) == scm_tc16_bigpos);
- }
-#else
- SCM_GASSERT1 (SCM_INUMP (x), g_positive_p, x, SCM_ARG1, s_positive_p);
-#endif
-#endif
- return SCM_BOOL(x > SCM_INUM0);
+ if (SCM_INUMP (x)) {
+ return SCM_BOOL (SCM_INUM (x) > 0);
+ } else if (SCM_BIGP (x)) {
+ return SCM_BOOL (!SCM_BIGSIGN (x));
+ } else if (SCM_REALP (x)) {
+ return SCM_BOOL(SCM_REAL_VALUE (x) > 0.0);
+ } else {
+ SCM_WTA_DISPATCH_1 (g_positive_p, x, SCM_ARG1, s_positive_p);
+ }
}
-
SCM_GPROC (s_negative_p, "negative?", 1, 0, 0, scm_negative_p, g_negative_p);
SCM
scm_negative_p (SCM x)
{
-#ifdef SCM_FLOATS
- if (SCM_NINUMP (x))
- {
-#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (x), badx);
- if (SCM_BIGP (x))
- return SCM_NEGATE_BOOL(SCM_TYP16 (x) == scm_tc16_bigpos);
- if (!(SCM_REALP (x)))
- {
- badx:
- SCM_WTA_DISPATCH_1 (g_negative_p, x, SCM_ARG1, s_negative_p);
- }
-#else
- SCM_GASSERT1 (SCM_REALP (x),
- g_negative_p, x, SCM_ARG1, s_negative_p);
-#endif
- return SCM_BOOL(SCM_REALPART (x) < 0.0);
- }
-#else
-#ifdef SCM_BIGDIG
- if (SCM_NINUMP (x))
- {
- SCM_GASSERT1 (SCM_BIGP (x),
- g_negative_p, x, SCM_ARG1, s_negative_p);
- return SCM_BOOL(SCM_TYP16 (x) == scm_tc16_bigneg);
- }
-#else
- SCM_GASSERT1 (SCM_INUMP (x), g_negative_p, x, SCM_ARG1, s_negative_p);
-#endif
-#endif
- return SCM_BOOL(x < SCM_INUM0);
+ if (SCM_INUMP (x)) {
+ return SCM_BOOL (SCM_INUM (x) < 0);
+ } else if (SCM_BIGP (x)) {
+ return SCM_BOOL (SCM_BIGSIGN (x));
+ } else if (SCM_REALP (x)) {
+ return SCM_BOOL(SCM_REAL_VALUE (x) < 0.0);
+ } else {
+ SCM_WTA_DISPATCH_1 (g_negative_p, x, SCM_ARG1, s_negative_p);
+ }
}
SCM
scm_max (SCM x, SCM y)
{
-#ifdef SCM_FLOATS
- double z;
-#endif
- if (SCM_UNBNDP (y))
- {
- SCM_GASSERT0 (!SCM_UNBNDP (x),
- g_max, scm_makfrom0str (s_max), SCM_WNA, 0);
- SCM_GASSERT1 (SCM_NUMBERP (x), g_max, x, SCM_ARG1, s_max);
+ if (SCM_UNBNDP (y)) {
+ if (SCM_UNBNDP (x)) {
+ SCM_WTA_DISPATCH_0 (g_max, x, SCM_ARG1, s_max);
+ } else if (SCM_NUMBERP (x)) {
return x;
+ } else {
+ SCM_WTA_DISPATCH_1 (g_max, x, SCM_ARG1, s_max);
}
-#ifdef SCM_FLOATS
- if (SCM_NINUMP (x))
- {
-#ifdef SCM_BIGDIG
- if (!SCM_NIMP (x))
- {
- badx2:
- SCM_WTA_DISPATCH_2 (g_max, x, y, SCM_ARG1, s_max);
- }
- if (SCM_BIGP (x))
- {
- if (SCM_INUMP (y))
- return SCM_BIGSIGN (x) ? y : x;
- SCM_ASRTGO (SCM_NIMP (y), bady);
- if (SCM_BIGP (y))
- return (1 == scm_bigcomp (x, y)) ? y : x;
- SCM_ASRTGO (SCM_REALP (y), bady);
- z = scm_big2dbl (x);
- return (z < SCM_REALPART (y)) ? y : scm_makdbl (z, 0.0);
- }
- SCM_ASRTGO (SCM_REALP (x), badx2);
-#else
- SCM_GASSERT2 (SCM_REALP (x),
- g_max, x, y, SCM_ARG1, s_max);
-#endif
- if (SCM_INUMP (y))
- return ((SCM_REALPART (x) < (z = SCM_INUM (y)))
- ? scm_makdbl (z, 0.0)
- : x);
-#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (y), bady);
- if (SCM_BIGP (y))
- return ((SCM_REALPART (x) < (z = scm_big2dbl (y)))
- ? scm_makdbl (z, 0.0)
- : x);
- SCM_ASRTGO (SCM_REALP (y), bady);
-#else
- SCM_ASRTGO (SCM_REALP (y), bady);
-#endif
- return (SCM_REALPART (x) < SCM_REALPART (y)) ? y : x;
- }
- if (SCM_NINUMP (y))
- {
-#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (y), bady);
- if (SCM_BIGP (y))
- return SCM_BIGSIGN (y) ? x : y;
- if (!(SCM_REALP (y)))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_max, x, y, SCM_ARGn, s_max);
- }
-#else
- if (!SCM_REALP (y))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_max, x, y, SCM_ARGn, s_max);
- }
-#endif
- return (((z = SCM_INUM (x)) < SCM_REALPART (y))
- ? y
- : scm_makdbl (z, 0.0));
- }
-#else
-#ifdef SCM_BIGDIG
- if (SCM_NINUMP (x))
- {
- SCM_GASSERT2 (SCM_BIGP (x),
- g_max, x, y, SCM_ARG1, s_max);
- if (SCM_INUMP (y))
- return SCM_BIGSIGN (x) ? y : x;
- SCM_ASRTGO (SCM_BIGP (y), bady);
- return (1 == scm_bigcomp (x, y)) ? y : x;
- }
- if (SCM_NINUMP (y))
- {
- if (!SCM_BIGP (y))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_max, x, y, SCM_ARGn, s_max);
- }
+ }
+
+ if (SCM_INUMP (x)) {
+ long xx = SCM_INUM (x);
+ if (SCM_INUMP (y)) {
+ long yy = SCM_INUM (y);
+ return (xx < yy) ? y : x;
+ } else if (SCM_BIGP (y)) {
return SCM_BIGSIGN (y) ? x : y;
- }
-#else
- SCM_GASSERT2 (SCM_INUMP (x), g_max, x, y, SCM_ARG1, s_max);
- SCM_GASSERT2 (SCM_INUMP (y), g_max, x, y, SCM_ARGn, s_max);
-#endif
-#endif
- return ((long) x < (long) y) ? y : x;
+ } else if (SCM_REALP (y)) {
+ double z = xx;
+ return (z <= SCM_REAL_VALUE (y)) ? y : scm_make_real (z);
+ } else {
+ SCM_WTA_DISPATCH_2 (g_max, x, y, SCM_ARGn, s_max);
+ }
+ } else if (SCM_BIGP (x)) {
+ if (SCM_INUMP (y)) {
+ return SCM_BIGSIGN (x) ? y : x;
+ } else if (SCM_BIGP (y)) {
+ return (1 == scm_bigcomp (x, y)) ? y : x;
+ } else if (SCM_REALP (y)) {
+ double z = scm_big2dbl (x);
+ return (z <= SCM_REAL_VALUE (y)) ? y : scm_make_real (z);
+ } else {
+ SCM_WTA_DISPATCH_2 (g_max, x, y, SCM_ARGn, s_max);
+ }
+ } else if (SCM_REALP (x)) {
+ if (SCM_INUMP (y)) {
+ double z = SCM_INUM (y);
+ return (SCM_REAL_VALUE (x) < z) ? scm_make_real (z) : x;
+ } else if (SCM_BIGP (y)) {
+ double z = scm_big2dbl (y);
+ return (SCM_REAL_VALUE (x) < z) ? scm_make_real (z) : x;
+ } else if (SCM_REALP (y)) {
+ return (SCM_REAL_VALUE (x) < SCM_REAL_VALUE (y)) ? y : x;
+ } else {
+ SCM_WTA_DISPATCH_2 (g_max, x, y, SCM_ARGn, s_max);
+ }
+ } else {
+ SCM_WTA_DISPATCH_2 (g_max, x, y, SCM_ARG1, s_max);
+ }
}
-
-
SCM_GPROC1 (s_min, "min", scm_tc7_asubr, scm_min, g_min);
SCM
scm_min (SCM x, SCM y)
{
-#ifdef SCM_FLOATS
- double z;
-#endif
- if (SCM_UNBNDP (y))
- {
- SCM_GASSERT0 (!SCM_UNBNDP (x),
- g_min, scm_makfrom0str (s_min), SCM_WNA, 0);
- SCM_GASSERT1 (SCM_NUMBERP (x), g_min, x, SCM_ARG1, s_min);
+ if (SCM_UNBNDP (y)) {
+ if (SCM_UNBNDP (x)) {
+ SCM_WTA_DISPATCH_0 (g_min, x, SCM_ARG1, s_min);
+ } else if (SCM_NUMBERP (x)) {
return x;
+ } else {
+ SCM_WTA_DISPATCH_1 (g_min, x, SCM_ARG1, s_min);
}
-#ifdef SCM_FLOATS
- if (SCM_NINUMP (x))
- {
-#ifdef SCM_BIGDIG
- if (!SCM_NIMP (x))
- {
- badx2:
- SCM_WTA_DISPATCH_2 (g_min, x, y, SCM_ARG1, s_min);
- }
- if (SCM_BIGP (x))
- {
- if (SCM_INUMP (y))
- return SCM_BIGSIGN (x) ? x : y;
- SCM_ASRTGO (SCM_NIMP (y), bady);
- if (SCM_BIGP (y))
- return (-1 == scm_bigcomp (x, y)) ? y : x;
- SCM_ASRTGO (SCM_REALP (y), bady);
- z = scm_big2dbl (x);
- return (z > SCM_REALPART (y)) ? y : scm_makdbl (z, 0.0);
- }
- SCM_ASRTGO (SCM_REALP (x), badx2);
-#else
- SCM_GASSERT2 (SCM_REALP (x),
- g_min, x, y, SCM_ARG1, s_min);
-#endif
- if (SCM_INUMP (y))
- return ((SCM_REALPART (x) > (z = SCM_INUM (y)))
- ? scm_makdbl (z, 0.0)
- : x);
-#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (y), bady);
- if (SCM_BIGP (y))
- return ((SCM_REALPART (x) > (z = scm_big2dbl (y)))
- ? scm_makdbl (z, 0.0)
- : x);
- SCM_ASRTGO (SCM_REALP (y), bady);
-#else
- SCM_ASRTGO (SCM_REALP (y), bady);
-#endif
- return (SCM_REALPART (x) > SCM_REALPART (y)) ? y : x;
- }
- if (SCM_NINUMP (y))
- {
-#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (y), bady);
- if (SCM_BIGP (y))
- return SCM_BIGSIGN (y) ? y : x;
- if (!(SCM_REALP (y)))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_min, x, y, SCM_ARGn, s_min);
- }
-#else
- if (!SCM_REALP (y))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_min, x, y, SCM_ARGn, s_min);
- }
-#endif
- return (((z = SCM_INUM (x)) > SCM_REALPART (y))
- ? y
- : scm_makdbl (z, 0.0));
- }
-#else
-#ifdef SCM_BIGDIG
- if (SCM_NINUMP (x))
- {
- SCM_GASSERT2 (SCM_BIGP (x),
- g_min, x, y, SCM_ARG1, s_min);
- if (SCM_INUMP (y))
- return SCM_BIGSIGN (x) ? x : y;
- SCM_ASRTGO (SCM_BIGP (y), bady);
- return (-1 == scm_bigcomp (x, y)) ? y : x;
- }
- if (SCM_NINUMP (y))
- {
- if (!SCM_BIGP (y))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_min, x, y, SCM_ARGn, s_min);
- }
+ }
+
+ if (SCM_INUMP (x)) {
+ long xx = SCM_INUM (x);
+ if (SCM_INUMP (y)) {
+ long yy = SCM_INUM (y);
+ return (xx < yy) ? x : y;
+ } else if (SCM_BIGP (y)) {
return SCM_BIGSIGN (y) ? y : x;
- }
-#else
- SCM_GASSERT2 (SCM_INUMP (x), g_min, x, y, SCM_ARG1, s_min);
- SCM_GASSERT2 (SCM_INUMP (y), g_min, x, y, SCM_ARGn, s_min);
-#endif
-#endif
- return ((long) x > (long) y) ? y : x;
+ } else if (SCM_REALP (y)) {
+ double z = xx;
+ return (z < SCM_REAL_VALUE (y)) ? scm_make_real (z) : y;
+ } else {
+ SCM_WTA_DISPATCH_2 (g_min, x, y, SCM_ARGn, s_min);
+ }
+ } else if (SCM_BIGP (x)) {
+ if (SCM_INUMP (y)) {
+ return SCM_BIGSIGN (x) ? x : y;
+ } else if (SCM_BIGP (y)) {
+ return (-1 == scm_bigcomp (x, y)) ? y : x;
+ } else if (SCM_REALP (y)) {
+ double z = scm_big2dbl (x);
+ return (z < SCM_REAL_VALUE (y)) ? scm_make_real (z) : y;
+ } else {
+ SCM_WTA_DISPATCH_2 (g_min, x, y, SCM_ARGn, s_min);
+ }
+ } else if (SCM_REALP (x)) {
+ if (SCM_INUMP (y)) {
+ double z = SCM_INUM (y);
+ return (SCM_REAL_VALUE (x) <= z) ? x : scm_make_real (z);
+ } else if (SCM_BIGP (y)) {
+ double z = scm_big2dbl (y);
+ return (SCM_REAL_VALUE (x) <= z) ? x : scm_make_real (z);
+ } else if (SCM_REALP (y)) {
+ return (SCM_REAL_VALUE (x) < SCM_REAL_VALUE (y)) ? x : y;
+ } else {
+ SCM_WTA_DISPATCH_2 (g_min, x, y, SCM_ARGn, s_min);
+ }
+ } else {
+ SCM_WTA_DISPATCH_2 (g_min, x, y, SCM_ARG1, s_min);
+ }
}
-
-
SCM_GPROC1 (s_sum, "+", scm_tc7_asubr, scm_sum, g_sum);
SCM
scm_sum (SCM x, SCM y)
{
- if (SCM_UNBNDP (y))
- {
- if (SCM_UNBNDP (x))
- return SCM_INUM0;
- SCM_GASSERT1 (SCM_NUMBERP (x), g_sum, x, SCM_ARG1, s_sum);
+ if (SCM_UNBNDP (y)) {
+ if (SCM_UNBNDP (x)) {
+ return SCM_INUM0;
+ } else if (SCM_NUMBERP (x)) {
return x;
+ } else {
+ SCM_WTA_DISPATCH_1 (g_sum, x, SCM_ARG1, s_sum);
}
-#ifdef SCM_FLOATS
- if (SCM_NINUMP (x))
- {
- SCM t;
-#ifdef SCM_BIGDIG
- if (!SCM_NIMP (x))
- {
- badx2:
- SCM_WTA_DISPATCH_2 (g_sum, x, y, SCM_ARG1, s_sum);
- }
- if (SCM_BIGP (x))
- {
- if (SCM_INUMP (y))
- {
- t = x;
- x = y;
- y = t;
- goto intbig;
- }
- SCM_ASRTGO (SCM_NIMP (y), bady);
- if (SCM_BIGP (y))
- {
- if (SCM_NUMDIGS (x) > SCM_NUMDIGS (y))
- {
- t = x;
- x = y;
- y = t;
- }
- return scm_addbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
- SCM_BIGSIGN (x),
- y, 0);
- }
- SCM_ASRTGO (SCM_INEXP (y), bady);
- bigreal:
- return scm_makdbl (scm_big2dbl (x) + SCM_REALPART (y),
- SCM_CPLXP (y) ? SCM_IMAG (y) : 0.0);
- }
- SCM_ASRTGO (SCM_INEXP (x), badx2);
-#else
- SCM_ASRTGO (SCM_INEXP (x), badx2);
-#endif
- if (SCM_INUMP (y))
- {
- t = x;
- x = y;
- y = t;
- goto intreal;
- }
+ }
+
+ if (SCM_INUMP (x)) {
+ long int xx = SCM_INUM (x);
+ if (SCM_INUMP (y)) {
+ long int yy = SCM_INUM (y);
+ long int z = xx + yy;
+ if (SCM_FIXABLE (z)) {
+ return SCM_MAKINUM (z);
+ } else {
#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (y), bady);
- if (SCM_BIGP (y))
- {
- t = x;
- x = y;
- y = t;
- goto bigreal;
- }
- else if (!SCM_INEXP (y))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_sum, x, y, SCM_ARGn, s_sum);
- }
-#else
- if (!SCM_INEXP (y))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_sum, x, y, SCM_ARGn, s_sum);
- }
-#endif
- {
- double i = 0.0;
- if (SCM_CPLXP (x))
- i = SCM_IMAG (x);
- if (SCM_CPLXP (y))
- i += SCM_IMAG (y);
- return scm_makdbl (SCM_REALPART (x) + SCM_REALPART (y), i);
+ return scm_long2big (z);
+#else /* SCM_BIGDIG */
+ return scm_make_real ((double) z);
+#endif /* SCM_BIGDIG */
}
- }
- if (SCM_NINUMP (y))
- {
-#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (y), bady);
- if (SCM_BIGP (y))
- {
- intbig:
- {
-#ifndef SCM_DIGSTOOBIG
- long z = scm_pseudolong (SCM_INUM (x));
- return scm_addbig ((SCM_BIGDIG *) & z,
- SCM_DIGSPERLONG,
- (x < 0) ? 0x0100 : 0,
- y, 0);
-#else
- SCM_BIGDIG zdigs[SCM_DIGSPERLONG];
- scm_longdigs (SCM_INUM (x), zdigs);
- return scm_addbig (zdigs, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0,
- y, 0);
-#endif
- }
- }
- SCM_ASRTGO (SCM_INEXP (y), bady);
-#else
- SCM_ASRTGO (SCM_INEXP (y), bady);
-#endif
- intreal:
- return scm_makdbl (SCM_INUM (x) + SCM_REALPART (y),
- SCM_CPLXP (y) ? SCM_IMAG (y) : 0.0);
- }
-#else
-#ifdef SCM_BIGDIG
- if (SCM_NINUMP (x))
- {
- SCM t;
- SCM_ASRTGO (SCM_BIGP (x), badx2);
- if (SCM_INUMP (y))
- {
- t = x;
- x = y;
- y = t;
- goto intbig;
- }
- SCM_ASRTGO (SCM_BIGP (y), bady);
- if (SCM_NUMDIGS (x) > SCM_NUMDIGS (y))
- {
- t = x;
- x = y;
- y = t;
- }
- return scm_addbig (SCM_BDIGITS (x), SCM_NUMDIGS (x), SCM_BIGSIGN (x),
- y, 0);
- }
- if (SCM_NINUMP (y))
- {
- if (!SCM_BIGP (y))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_sum, x, y, SCM_ARGn, s_sum);
- }
+ } else if (SCM_BIGP (y)) {
intbig:
{
+ long int xx = SCM_INUM (x);
#ifndef SCM_DIGSTOOBIG
- long z = scm_pseudolong (SCM_INUM (x));
- return scm_addbig (&z, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0, y, 0);
-#else
- SCM_BIGDIG zdigs[SCM_DIGSPERLONG];
- scm_longdigs (SCM_INUM (x), zdigs);
- return scm_addbig (zdigs, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0, y, 0);
-#endif
+ long z = scm_pseudolong (xx);
+ return scm_addbig ((SCM_BIGDIG *) & z, SCM_DIGSPERLONG,
+ (xx < 0) ? SCM_BIGSIGNFLAG : 0, y, 0);
+#else /* SCM_DIGSTOOBIG */
+ SCM_BIGDIG zdigs [SCM_DIGSPERLONG];
+ scm_longdigs (xx, zdigs);
+ return scm_addbig (zdigs, SCM_DIGSPERLONG,
+ (xx < 0) ? SCM_BIGSIGNFLAG : 0, y, 0);
+#endif /* SCM_DIGSTOOBIG */
}
- }
-#else
- SCM_ASRTGO (SCM_INUMP (x), badx2);
- SCM_GASSERT2 (SCM_INUMP (y), g_sum, x, y, SCM_ARGn, s_sum);
-#endif
-#endif
- x = SCM_INUM (x) + SCM_INUM (y);
- if (SCM_FIXABLE (x))
- return SCM_MAKINUM (x);
-#ifdef SCM_BIGDIG
- return scm_long2big (x);
-#else
-#ifdef SCM_FLOATS
- return scm_makdbl ((double) x, 0.0);
-#else
- scm_num_overflow (s_sum);
- return SCM_UNSPECIFIED;
-#endif
-#endif
+ } else if (SCM_REALP (y)) {
+ return scm_make_real (xx + SCM_REAL_VALUE (y));
+ } else if (SCM_COMPLEXP (y)) {
+ return scm_make_complex (xx + SCM_COMPLEX_REAL (y),
+ SCM_COMPLEX_IMAG (y));
+ } else {
+ SCM_WTA_DISPATCH_2 (g_sum, x, y, SCM_ARGn, s_sum);
+ }
+ } else if (SCM_BIGP (x)) {
+ if (SCM_INUMP (y)) {
+ SCM_SWAP (x, y);
+ goto intbig;
+ } else if (SCM_BIGP (y)) {
+ if (SCM_NUMDIGS (x) > SCM_NUMDIGS (y)) {
+ SCM_SWAP (x, y);
+ }
+ return scm_addbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
+ SCM_BIGSIGN (x), y, 0);
+ } else if (SCM_REALP (y)) {
+ return scm_make_real (scm_big2dbl (x) + SCM_REAL_VALUE (y));
+ } else if (SCM_COMPLEXP (y)) {
+ return scm_make_complex (scm_big2dbl (x) + SCM_COMPLEX_REAL (y),
+ SCM_COMPLEX_IMAG (y));
+ } else {
+ SCM_WTA_DISPATCH_2 (g_sum, x, y, SCM_ARGn, s_sum);
+ }
+ } else if (SCM_REALP (x)) {
+ if (SCM_INUMP (y)) {
+ return scm_make_real (SCM_REAL_VALUE (x) + SCM_INUM (y));
+ } else if (SCM_BIGP (y)) {
+ return scm_make_real (SCM_REAL_VALUE (x) + scm_big2dbl (y));
+ } else if (SCM_REALP (y)) {
+ return scm_make_real (SCM_REAL_VALUE (x) + SCM_REAL_VALUE (y));
+ } else if (SCM_COMPLEXP (y)) {
+ return scm_make_complex (SCM_REAL_VALUE (x) + SCM_COMPLEX_REAL (y),
+ SCM_COMPLEX_IMAG (y));
+ } else {
+ SCM_WTA_DISPATCH_2 (g_sum, x, y, SCM_ARGn, s_sum);
+ }
+ } else if (SCM_COMPLEXP (x)) {
+ if (SCM_INUMP (y)) {
+ return scm_make_complex (SCM_COMPLEX_REAL (x) + SCM_INUM (y),
+ SCM_COMPLEX_IMAG (x));
+ } else if (SCM_BIGP (y)) {
+ return scm_make_complex (SCM_COMPLEX_REAL (x) + scm_big2dbl (y),
+ SCM_COMPLEX_IMAG (x));
+ } else if (SCM_REALP (y)) {
+ return scm_make_complex (SCM_COMPLEX_REAL (x) + SCM_REAL_VALUE (y),
+ SCM_COMPLEX_IMAG (x));
+ } else if (SCM_COMPLEXP (y)) {
+ return scm_make_complex (SCM_COMPLEX_REAL (x) + SCM_COMPLEX_REAL (y),
+ SCM_COMPLEX_IMAG (x) + SCM_COMPLEX_IMAG (y));
+ } else {
+ SCM_WTA_DISPATCH_2 (g_sum, x, y, SCM_ARGn, s_sum);
+ }
+ } else {
+ SCM_WTA_DISPATCH_2 (g_sum, x, y, SCM_ARG1, s_sum);
+ }
}
-
-
SCM_GPROC1 (s_difference, "-", scm_tc7_asubr, scm_difference, g_difference);
SCM
scm_difference (SCM x, SCM y)
{
-#ifdef SCM_FLOATS
- if (SCM_NINUMP (x))
- {
- if (!(SCM_NIMP (x)))
- {
- if (SCM_UNBNDP (y))
- {
- SCM_GASSERT0 (!SCM_UNBNDP (x), g_difference,
- scm_makfrom0str (s_difference), SCM_WNA, 0);
- badx:
- SCM_WTA_DISPATCH_1 (g_difference, x, SCM_ARG1, s_difference);
- }
- else
- {
- badx2:
- SCM_WTA_DISPATCH_2 (g_difference, x, y, SCM_ARG1, s_difference);
- }
- }
- if (SCM_UNBNDP (y))
- {
-#ifdef SCM_BIGDIG
- if (SCM_BIGP (x))
- {
- x = scm_copybig (x, !SCM_BIGSIGN (x));
- return (SCM_NUMDIGS (x) * SCM_BITSPERDIG / SCM_CHAR_BIT
- <= sizeof (SCM)
- ? scm_big2inum (x, SCM_NUMDIGS (x))
- : x);
- }
-#endif
- SCM_ASRTGO (SCM_INEXP (x), badx);
- return scm_makdbl (- SCM_REALPART (x),
- SCM_CPLXP (x) ? -SCM_IMAG (x) : 0.0);
- }
- if (SCM_INUMP (y))
- return scm_sum (x, SCM_MAKINUM (- SCM_INUM (y)));
+ if (SCM_UNBNDP (y)) {
+ if (SCM_INUMP (x)) {
+ long xx = -SCM_INUM (x);
+ if (SCM_FIXABLE (xx)) {
+ return SCM_MAKINUM (xx);
+ } else {
#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (y), bady);
- if (SCM_BIGP (x))
- {
- if (SCM_BIGP (y))
- return ((SCM_NUMDIGS (x) < SCM_NUMDIGS (y))
- ? scm_addbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
- SCM_BIGSIGN (x),
- y, 0x0100)
- : scm_addbig (SCM_BDIGITS (y), SCM_NUMDIGS (y),
- SCM_BIGSIGN (y) ^ 0x0100,
- x, 0));
- SCM_ASRTGO (SCM_INEXP (y), bady);
- return scm_makdbl (scm_big2dbl (x) - SCM_REALPART (y),
- SCM_CPLXP (y) ? -SCM_IMAG (y) : 0.0);
- }
- SCM_ASRTGO (SCM_INEXP (x), badx2);
- if (SCM_BIGP (y))
- return scm_makdbl (SCM_REALPART (x) - scm_big2dbl (y),
- SCM_CPLXP (x) ? SCM_IMAG (x) : 0.0);
- SCM_ASRTGO (SCM_INEXP (y), bady);
+ return scm_long2big (xx);
#else
- SCM_ASRTGO (SCM_INEXP (x), badx2);
- SCM_ASRTGO (SCM_INEXP (y), bady);
+ return scm_make_real ((double) xx);
#endif
- if (SCM_CPLXP (x))
- {
- if (SCM_CPLXP (y))
- return scm_makdbl (SCM_REAL (x) - SCM_REAL (y),
- SCM_IMAG (x) - SCM_IMAG (y));
- else
- return scm_makdbl (SCM_REAL (x) - SCM_REALPART (y), SCM_IMAG (x));
- }
- return scm_makdbl (SCM_REALPART (x) - SCM_REALPART (y),
- SCM_CPLXP (y) ? - SCM_IMAG (y) : 0.0);
- }
- if (SCM_UNBNDP (y))
- {
- x = -SCM_INUM (x);
- goto checkx;
+ }
+ } else if (SCM_BIGP (x)) {
+ SCM z = scm_copybig (x, !SCM_BIGSIGN (x));
+ unsigned int digs = SCM_NUMDIGS (z);
+ unsigned int size = digs * SCM_BITSPERDIG / SCM_CHAR_BIT;
+ return size <= sizeof (SCM) ? scm_big2inum (z, digs) : z;
+ } else if (SCM_REALP (x)) {
+ return scm_make_real (-SCM_REAL_VALUE (x));
+ } else if (SCM_COMPLEXP (x)) {
+ return scm_make_complex (-SCM_COMPLEX_REAL (x), -SCM_COMPLEX_IMAG (x));
+ } else {
+ SCM_WTA_DISPATCH_1 (g_difference, x, SCM_ARG1, s_difference);
}
- if (SCM_NINUMP (y))
- {
+ }
+
+ if (SCM_INUMP (x)) {
+ long int xx = SCM_INUM (x);
+ if (SCM_INUMP (y)) {
+ long int yy = SCM_INUM (y);
+ long int z = xx - yy;
+ if (SCM_FIXABLE (z)) {
+ return SCM_MAKINUM (z);
+ } else {
#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (y), bady);
- if (SCM_BIGP (y))
- {
-#ifndef SCM_DIGSTOOBIG
- long z = scm_pseudolong (SCM_INUM (x));
- return scm_addbig ((SCM_BIGDIG *) & z, SCM_DIGSPERLONG,
- (x < 0) ? 0x0100 : 0,
- y, 0x0100);
+ return scm_long2big (z);
#else
- SCM_BIGDIG zdigs[SCM_DIGSPERLONG];
- scm_longdigs (SCM_INUM (x), zdigs);
- return scm_addbig (zdigs, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0,
- y, 0x0100);
+ return scm_make_real ((double) z);
#endif
- }
- if (!SCM_INEXP (y))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_difference, x, y, SCM_ARGn, s_difference);
- }
-#else
- if (!SCM_INEXP (y))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_difference, x, y, SCM_ARGn, s_difference);
- }
-#endif
- return scm_makdbl (SCM_INUM (x) - SCM_REALPART (y),
- SCM_CPLXP (y) ? -SCM_IMAG (y) : 0.0);
- }
-#else
-#ifdef SCM_BIGDIG
- if (SCM_NINUMP (x))
- {
- SCM_GASSERT2 (SCM_BIGP (x),
- g_difference, x, y, SCM_ARG1, s_difference);
- if (SCM_UNBNDP (y))
- {
- x = scm_copybig (x, !SCM_BIGSIGN (x));
- return (SCM_NUMDIGS (x) * SCM_BITSPERDIG / SCM_CHAR_BIT
- <= sizeof (SCM)
- ? scm_big2inum (x, SCM_NUMDIGS (x))
- : x);
- }
- if (SCM_INUMP (y))
- {
+ }
+ } else if (SCM_BIGP (y)) {
#ifndef SCM_DIGSTOOBIG
- long z = scm_pseudolong (SCM_INUM (y));
- return scm_addbig (&z, SCM_DIGSPERLONG, (y < 0) ? 0 : 0x0100, x, 0);
+ long z = scm_pseudolong (xx);
+ return scm_addbig ((SCM_BIGDIG *) & z, SCM_DIGSPERLONG,
+ (xx < 0) ? SCM_BIGSIGNFLAG : 0, y, SCM_BIGSIGNFLAG);
#else
- SCM_BIGDIG zdigs[SCM_DIGSPERLONG];
- scm_longdigs (SCM_INUM (x), zdigs);
- return scm_addbig (zdigs, SCM_DIGSPERLONG, (y < 0) ? 0 : 0x0100,
- x, 0);
-#endif
- }
- SCM_ASRTGO (SCM_BIGP (y), bady);
- return (SCM_NUMDIGS (x) < SCM_NUMDIGS (y)) ?
- scm_addbig (SCM_BDIGITS (x), SCM_NUMDIGS (x), SCM_BIGSIGN (x),
- y, 0x0100) :
- scm_addbig (SCM_BDIGITS (y), SCM_NUMDIGS (y), SCM_BIGSIGN (y) ^ 0x0100,
- x, 0);
- }
- if (SCM_UNBNDP (y))
- {
- x = -SCM_INUM (x);
- goto checkx;
- }
- if (SCM_NINUMP (y))
- {
- if (!SCM_BIGP (y))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_difference, x, y, SCM_ARGn, s_difference);
- }
- {
+ SCM_BIGDIG zdigs [SCM_DIGSPERLONG];
+ scm_longdigs (xx, zdigs);
+ return scm_addbig (zdigs, SCM_DIGSPERLONG,
+ (xx < 0) ? SCM_BIGSIGNFLAG : 0, y, SCM_BIGSIGNFLAG);
+#endif
+ } else if (SCM_REALP (y)) {
+ return scm_make_real (xx - SCM_REAL_VALUE (y));
+ } else if (SCM_COMPLEXP (y)) {
+ return scm_make_complex (xx - SCM_COMPLEX_REAL (y),
+ -SCM_COMPLEX_IMAG (y));
+ } else {
+ SCM_WTA_DISPATCH_2 (g_difference, x, y, SCM_ARGn, s_difference);
+ }
+ } else if (SCM_BIGP (x)) {
+ if (SCM_INUMP (y)) {
+ long int yy = SCM_INUM (y);
#ifndef SCM_DIGSTOOBIG
- long z = scm_pseudolong (SCM_INUM (x));
- return scm_addbig (&z, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0,
- y, 0x0100);
+ long z = scm_pseudolong (yy);
+ return scm_addbig ((SCM_BIGDIG *) & z, SCM_DIGSPERLONG,
+ (yy < 0) ? 0 : SCM_BIGSIGNFLAG, x, 0);
#else
- SCM_BIGDIG zdigs[SCM_DIGSPERLONG];
- scm_longdigs (SCM_INUM (x), zdigs);
- return scm_addbig (zdigs, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0,
- y, 0x0100);
-#endif
- }
- }
-#else
- SCM_GASSERT2 (SCM_INUMP (x), g_difference, x, y, SCM_ARG1, s_difference);
- if (SCM_UNBNDP (y))
- {
- x = -SCM_INUM (x);
- goto checkx;
- }
- SCM_GASSERT2 (SCM_INUMP (y), g_difference, x, y, SCM_ARGn, s_difference);
-#endif
-#endif
- x = SCM_INUM (x) - SCM_INUM (y);
- checkx:
- if (SCM_FIXABLE (x))
- return SCM_MAKINUM (x);
-#ifdef SCM_BIGDIG
- return scm_long2big (x);
-#else
-#ifdef SCM_FLOATS
- return scm_makdbl ((double) x, 0.0);
-#else
- scm_num_overflow (s_difference);
- return SCM_UNSPECIFIED;
-#endif
-#endif
+ SCM_BIGDIG zdigs [SCM_DIGSPERLONG];
+ scm_longdigs (yy, zdigs);
+ return scm_addbig (zdigs, SCM_DIGSPERLONG,
+ (yy < 0) ? 0 : SCM_BIGSIGNFLAG, x, 0);
+#endif
+ } else if (SCM_BIGP (y)) {
+ return (SCM_NUMDIGS (x) < SCM_NUMDIGS (y))
+ ? scm_addbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
+ SCM_BIGSIGN (x), y, SCM_BIGSIGNFLAG)
+ : scm_addbig (SCM_BDIGITS (y), SCM_NUMDIGS (y),
+ SCM_BIGSIGN (y) ^ SCM_BIGSIGNFLAG, x, 0);
+ } else if (SCM_REALP (y)) {
+ return scm_make_real (scm_big2dbl (x) - SCM_REAL_VALUE (y));
+ } else if (SCM_COMPLEXP (y)) {
+ return scm_make_complex (scm_big2dbl (x) - SCM_COMPLEX_REAL (y),
+ - SCM_COMPLEX_IMAG (y));
+ } else {
+ SCM_WTA_DISPATCH_2 (g_difference, x, y, SCM_ARGn, s_difference);
+ }
+ } else if (SCM_REALP (x)) {
+ if (SCM_INUMP (y)) {
+ return scm_make_real (SCM_REAL_VALUE (x) - SCM_INUM (y));
+ } else if (SCM_BIGP (y)) {
+ return scm_make_real (SCM_REAL_VALUE (x) - scm_big2dbl (y));
+ } else if (SCM_REALP (y)) {
+ return scm_make_real (SCM_REAL_VALUE (x) - SCM_REAL_VALUE (y));
+ } else if (SCM_COMPLEXP (y)) {
+ return scm_make_complex (SCM_REAL_VALUE (x) - SCM_COMPLEX_REAL (y),
+ -SCM_COMPLEX_IMAG (y));
+ } else {
+ SCM_WTA_DISPATCH_2 (g_difference, x, y, SCM_ARGn, s_difference);
+ }
+ } else if (SCM_COMPLEXP (x)) {
+ if (SCM_INUMP (y)) {
+ return scm_make_complex (SCM_COMPLEX_REAL (x) - SCM_INUM (y),
+ SCM_COMPLEX_IMAG (x));
+ } else if (SCM_BIGP (y)) {
+ return scm_make_complex (SCM_COMPLEX_REAL (x) - scm_big2dbl (y),
+ SCM_COMPLEX_IMAG (x));
+ } else if (SCM_REALP (y)) {
+ return scm_make_complex (SCM_COMPLEX_REAL (x) - SCM_REAL_VALUE (y),
+ SCM_COMPLEX_IMAG (x));
+ } else if (SCM_COMPLEXP (y)) {
+ return scm_make_complex (SCM_COMPLEX_REAL (x) - SCM_COMPLEX_REAL (y),
+ SCM_COMPLEX_IMAG (x) - SCM_COMPLEX_IMAG (y));
+ } else {
+ SCM_WTA_DISPATCH_2 (g_difference, x, y, SCM_ARGn, s_difference);
+ }
+ } else {
+ SCM_WTA_DISPATCH_2 (g_difference, x, y, SCM_ARG1, s_difference);
+ }
}
-
-
SCM_GPROC1 (s_product, "*", scm_tc7_asubr, scm_product, g_product);
SCM
scm_product (SCM x, SCM y)
{
- if (SCM_UNBNDP (y))
- {
- if (SCM_UNBNDP (x))
- return SCM_MAKINUM (1L);
- SCM_GASSERT1 (SCM_NUMBERP (x), g_product, x, SCM_ARG1, s_product);
+ if (SCM_UNBNDP (y)) {
+ if (SCM_UNBNDP (x)) {
+ return SCM_MAKINUM (1L);
+ } else if (SCM_NUMBERP (x)) {
return x;
+ } else {
+ SCM_WTA_DISPATCH_1 (g_product, x, SCM_ARG1, s_product);
}
-#ifdef SCM_FLOATS
- if (SCM_NINUMP (x))
- {
- SCM t;
-#ifdef SCM_BIGDIG
- if (!SCM_NIMP (x))
- {
- badx2:
- SCM_WTA_DISPATCH_2 (g_product, x, y, SCM_ARG1, s_product);
- }
- if (SCM_BIGP (x))
- {
- if (SCM_INUMP (y))
- {
- t = x;
- x = y;
- y = t;
- goto intbig;
- }
- SCM_ASRTGO (SCM_NIMP (y), bady);
- if (SCM_BIGP (y))
- return scm_mulbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
- SCM_BDIGITS (y), SCM_NUMDIGS (y),
- SCM_BIGSIGN (x) ^ SCM_BIGSIGN (y));
- SCM_ASRTGO (SCM_INEXP (y), bady);
- bigreal:
- {
- double bg = scm_big2dbl (x);
- return scm_makdbl (bg * SCM_REALPART (y),
- SCM_CPLXP (y) ? bg * SCM_IMAG (y) : 0.0);
- }
- }
- SCM_ASRTGO (SCM_INEXP (x), badx2);
-#else
- SCM_ASRTGO (SCM_INEXP (x), badx2);
-#endif
- if (SCM_INUMP (y))
- {
- t = x;
- x = y;
- y = t;
- goto intreal;
- }
-#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (y), bady);
- if (SCM_BIGP (y))
- {
- t = x;
- x = y;
- y = t;
- goto bigreal;
- }
- else if (!(SCM_INEXP (y)))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_product, x, y, SCM_ARGn, s_product);
- }
-#else
- if (!SCM_INEXP (y))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_product, x, y, SCM_ARGn, s_product);
- }
-#endif
- if (SCM_CPLXP (x))
- {
- if (SCM_CPLXP (y))
- return scm_makdbl (SCM_REAL (x) * SCM_REAL (y)
- - SCM_IMAG (x) * SCM_IMAG (y),
- SCM_REAL (x) * SCM_IMAG (y)
- + SCM_IMAG (x) * SCM_REAL (y));
- else
- return scm_makdbl (SCM_REAL (x) * SCM_REALPART (y),
- SCM_IMAG (x) * SCM_REALPART (y));
- }
- return scm_makdbl (SCM_REALPART (x) * SCM_REALPART (y),
- SCM_CPLXP (y)
- ? SCM_REALPART (x) * SCM_IMAG (y)
- : 0.0);
- }
- if (SCM_NINUMP (y))
- {
-#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (y), bady);
- if (SCM_BIGP (y))
- {
- intbig:
- if (SCM_INUM0 == x)
- return x;
- if (SCM_MAKINUM (1L) == x)
- return y;
- {
-#ifndef SCM_DIGSTOOBIG
- long z = scm_pseudolong (SCM_INUM (x));
- return scm_mulbig ((SCM_BIGDIG *) & z, SCM_DIGSPERLONG,
- SCM_BDIGITS (y), SCM_NUMDIGS (y),
- SCM_BIGSIGN (y) ? (x > 0) : (x < 0));
-#else
- SCM_BIGDIG zdigs[SCM_DIGSPERLONG];
- scm_longdigs (SCM_INUM (x), zdigs);
- return scm_mulbig (zdigs, SCM_DIGSPERLONG,
- SCM_BDIGITS (y), SCM_NUMDIGS (y),
- SCM_BIGSIGN (y) ? (x > 0) : (x < 0));
-#endif
- }
- }
- SCM_ASRTGO (SCM_INEXP (y), bady);
-#else
- SCM_ASRTGO (SCM_INEXP (y), bady);
-#endif
- intreal:
- return scm_makdbl (SCM_INUM (x) * SCM_REALPART (y),
- SCM_CPLXP (y) ? SCM_INUM (x) * SCM_IMAG (y) : 0.0);
- }
-#else
-#ifdef SCM_BIGDIG
- if (SCM_NINUMP (x))
- {
- SCM_ASRTGO (SCM_BIGP (x), badx2);
- if (SCM_INUMP (y))
- {
- SCM t = x;
- x = y;
- y = t;
- goto intbig;
- }
- SCM_ASRTGO (SCM_BIGP (y), bady);
- return scm_mulbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
- SCM_BDIGITS (y), SCM_NUMDIGS (y),
- SCM_BIGSIGN (x) ^ SCM_BIGSIGN (y));
- }
- if (SCM_NINUMP (y))
- {
- if (!SCM_BIGP (y))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_product, x, y, SCM_ARGn, s_product);
- }
- intbig:
- if (SCM_INUM0 == x)
- return x;
- if (SCM_MAKINUM (1L) == x)
- return y;
- {
-#ifndef SCM_DIGSTOOBIG
- long z = scm_pseudolong (SCM_INUM (x));
- return scm_mulbig (&z, SCM_DIGSPERLONG,
- SCM_BDIGITS (y), SCM_NUMDIGS (y),
- SCM_BIGSIGN (y) ? (x > 0) : (x < 0));
-#else
- SCM_BIGDIG zdigs[SCM_DIGSPERLONG];
- scm_longdigs (SCM_INUM (x), zdigs);
- return scm_mulbig (zdigs, SCM_DIGSPERLONG,
- SCM_BDIGITS (y), SCM_NUMDIGS (y),
- SCM_BIGSIGN (y) ? (x > 0) : (x < 0));
-#endif
- }
- }
-#else
- SCM_ASRTGO (SCM_INUMP (x), badx2);
- SCM_GASSERT (SCM_INUMP (y), g_product, x, y, SCM_ARGn, s_product);
-#endif
-#endif
- {
- long i, j, k;
- i = SCM_INUM (x);
- if (0 == i)
+ }
+
+ if (SCM_INUMP (x)) {
+ long xx;
+
+ intbig:
+ xx = SCM_INUM (x);
+
+ if (xx == 0) {
return x;
- j = SCM_INUM (y);
- k = i * j;
- y = SCM_MAKINUM (k);
- if (k != SCM_INUM (y) || k / i != j)
+ } else if (xx == 1) {
+ return y;
+ }
+
+ if (SCM_INUMP (y)) {
+ long yy = SCM_INUM (y);
+ long kk = xx * yy;
+ SCM k = SCM_MAKINUM (kk);
+ if (kk != SCM_INUM (k) || kk / xx != yy) {
#ifdef SCM_BIGDIG
- {
- int sgn = (i < 0) ^ (j < 0);
+ int sgn = (xx < 0) ^ (yy < 0);
#ifndef SCM_DIGSTOOBIG
- i = scm_pseudolong (i);
- j = scm_pseudolong (j);
+ long i = scm_pseudolong (xx);
+ long j = scm_pseudolong (yy);
return scm_mulbig ((SCM_BIGDIG *) & i, SCM_DIGSPERLONG,
(SCM_BIGDIG *) & j, SCM_DIGSPERLONG, sgn);
#else /* SCM_DIGSTOOBIG */
- SCM_BIGDIG idigs[SCM_DIGSPERLONG];
- SCM_BIGDIG jdigs[SCM_DIGSPERLONG];
- scm_longdigs (i, idigs);
- scm_longdigs (j, jdigs);
- return scm_mulbig (idigs, SCM_DIGSPERLONG,
- jdigs, SCM_DIGSPERLONG,
+ SCM_BIGDIG xdigs [SCM_DIGSPERLONG];
+ SCM_BIGDIG ydigs [SCM_DIGSPERLONG];
+ scm_longdigs (xx, xdigs);
+ scm_longdigs (yy, ydigs);
+ return scm_mulbig (xdigs, SCM_DIGSPERLONG,
+ ydigs, SCM_DIGSPERLONG,
sgn);
#endif
- }
-#else
-#ifdef SCM_FLOATS
- return scm_makdbl (((double) i) * ((double) j), 0.0);
#else
- scm_num_overflow (s_product);
+ return scm_make_real (((double) xx) * ((double) yy));
#endif
-#endif
- return y;
+ } else {
+ return k;
+ }
+ } else if (SCM_BIGP (y)) {
+#ifndef SCM_DIGSTOOBIG
+ long z = scm_pseudolong (xx);
+ return scm_mulbig ((SCM_BIGDIG *) & z, SCM_DIGSPERLONG,
+ SCM_BDIGITS (y), SCM_NUMDIGS (y),
+ SCM_BIGSIGN (y) ? (xx > 0) : (xx < 0));
+#else
+ SCM_BIGDIG zdigs [SCM_DIGSPERLONG];
+ scm_longdigs (xx, zdigs);
+ return scm_mulbig (zdigs, SCM_DIGSPERLONG,
+ SCM_BDIGITS (y), SCM_NUMDIGS (y),
+ SCM_BIGSIGN (y) ? (xx > 0) : (xx < 0));
+#endif
+ } else if (SCM_REALP (y)) {
+ return scm_make_real (xx * SCM_REAL_VALUE (y));
+ } else if (SCM_COMPLEXP (y)) {
+ return scm_make_complex (xx * SCM_COMPLEX_REAL (y),
+ xx * SCM_COMPLEX_IMAG (y));
+ } else {
+ SCM_WTA_DISPATCH_2 (g_product, x, y, SCM_ARGn, s_product);
+ }
+ } else if (SCM_BIGP (x)) {
+ if (SCM_INUMP (y)) {
+ SCM_SWAP (x, y);
+ goto intbig;
+ } else if (SCM_BIGP (y)) {
+ return scm_mulbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
+ SCM_BDIGITS (y), SCM_NUMDIGS (y),
+ SCM_BIGSIGN (x) ^ SCM_BIGSIGN (y));
+ } else if (SCM_REALP (y)) {
+ return scm_make_real (scm_big2dbl (x) * SCM_REAL_VALUE (y));
+ } else if (SCM_COMPLEXP (y)) {
+ double z = scm_big2dbl (x);
+ return scm_make_complex (z * SCM_COMPLEX_REAL (y),
+ z * SCM_COMPLEX_IMAG (y));
+ } else {
+ SCM_WTA_DISPATCH_2 (g_product, x, y, SCM_ARGn, s_product);
+ }
+ } else if (SCM_REALP (x)) {
+ if (SCM_INUMP (y)) {
+ return scm_make_real (SCM_INUM (y) * SCM_REAL_VALUE (x));
+ } else if (SCM_BIGP (y)) {
+ return scm_make_real (scm_big2dbl (y) * SCM_REAL_VALUE (x));
+ } else if (SCM_REALP (y)) {
+ return scm_make_real (SCM_REAL_VALUE (x) * SCM_REAL_VALUE (y));
+ } else if (SCM_COMPLEXP (y)) {
+ return scm_make_complex (SCM_REAL_VALUE (x) * SCM_COMPLEX_REAL (y),
+ SCM_REAL_VALUE (x) * SCM_COMPLEX_IMAG (y));
+ } else {
+ SCM_WTA_DISPATCH_2 (g_product, x, y, SCM_ARGn, s_product);
+ }
+ } else if (SCM_COMPLEXP (x)) {
+ if (SCM_INUMP (y)) {
+ return scm_make_complex (SCM_INUM (y) * SCM_COMPLEX_REAL (x),
+ SCM_INUM (y) * SCM_COMPLEX_IMAG (x));
+ } else if (SCM_BIGP (y)) {
+ double z = scm_big2dbl (y);
+ return scm_make_complex (z * SCM_COMPLEX_REAL (x),
+ z * SCM_COMPLEX_IMAG (x));
+ } else if (SCM_REALP (y)) {
+ return scm_make_complex (SCM_REAL_VALUE (y) * SCM_COMPLEX_REAL (x),
+ SCM_REAL_VALUE (y) * SCM_COMPLEX_IMAG (x));
+ } else if (SCM_COMPLEXP (y)) {
+ return scm_make_complex (SCM_COMPLEX_REAL (x) * SCM_COMPLEX_REAL (y)
+ - SCM_COMPLEX_IMAG (x) * SCM_COMPLEX_IMAG (y),
+ SCM_COMPLEX_REAL (x) * SCM_COMPLEX_IMAG (y)
+ + SCM_COMPLEX_IMAG (x) * SCM_COMPLEX_REAL (y));
+ } else {
+ SCM_WTA_DISPATCH_2 (g_product, x, y, SCM_ARGn, s_product);
+ }
+ } else {
+ SCM_WTA_DISPATCH_2 (g_product, x, y, SCM_ARG1, s_product);
}
}
-
double
scm_num2dbl (SCM a, const char *why)
+#define FUNC_NAME why
{
- if (SCM_INUMP (a))
+ if (SCM_INUMP (a)) {
return (double) SCM_INUM (a);
-#ifdef SCM_FLOATS
- SCM_ASSERT (SCM_NIMP (a), a, "wrong type argument", why);
- if (SCM_REALP (a))
- return (SCM_REALPART (a));
-#endif
-#ifdef SCM_BIGDIG
- return scm_big2dbl (a);
-#endif
- SCM_ASSERT (0, a, "wrong type argument", why);
- return SCM_UNSPECIFIED;
+ } else if (SCM_BIGP (a)) {
+ return scm_big2dbl (a);
+ } else if (SCM_REALP (a)) {
+ return (SCM_REAL_VALUE (a));
+ } else {
+ SCM_WRONG_TYPE_ARG (SCM_ARGn, a);
+ }
}
+#undef FUNC_NAME
-SCM_GPROC1 (s_divide, "/", scm_tc7_asubr, scm_divide, g_divide);
-
-SCM
-scm_divide (SCM x, SCM y)
-{
-#ifdef SCM_FLOATS
- double d, r, i, a;
- if (SCM_NINUMP (x))
- {
- if (!(SCM_NIMP (x)))
- {
- if (SCM_UNBNDP (y))
- {
- SCM_GASSERT0 (!SCM_UNBNDP (x),
- g_divide, scm_makfrom0str (s_divide), SCM_WNA, 0);
- badx:
- SCM_WTA_DISPATCH_1 (g_divide, x, SCM_ARG1, s_divide);
- }
- else
- {
- badx2:
- SCM_WTA_DISPATCH_2 (g_divide, x, y, SCM_ARG1, s_divide);
- }
- }
- if (SCM_UNBNDP (y))
- {
-#ifdef SCM_BIGDIG
- if (SCM_BIGP (x))
- return scm_makdbl (1.0 / scm_big2dbl (x), 0.0);
-#endif
- SCM_ASRTGO (SCM_INEXP (x), badx);
- if (SCM_REALP (x))
- return scm_makdbl (1.0 / SCM_REALPART (x), 0.0);
- r = SCM_REAL (x);
- i = SCM_IMAG (x);
- d = r * r + i * i;
- return scm_makdbl (r / d, -i / d);
- }
-#ifdef SCM_BIGDIG
- if (SCM_BIGP (x))
- {
- SCM z;
- if (SCM_INUMP (y))
- {
- z = SCM_INUM (y);
-#ifndef SCM_RECKLESS
- if (!z)
- scm_num_overflow (s_divide);
-#endif
- if (1 == z)
- return x;
- if (z < 0)
- z = -z;
- if (z < SCM_BIGRAD)
- {
- SCM w = scm_copybig (x, SCM_BIGSIGN (x) ? (y > 0) : (y < 0));
- return (scm_divbigdig (SCM_BDIGITS (w), SCM_NUMDIGS (w),
- (SCM_BIGDIG) z)
- ? scm_makdbl (scm_big2dbl (x) / SCM_INUM (y), 0.0)
- : scm_normbig (w));
- }
-#ifndef SCM_DIGSTOOBIG
- z = scm_pseudolong (z);
- z = scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
- (SCM_BIGDIG *) & z, SCM_DIGSPERLONG,
- SCM_BIGSIGN (x) ? (y > 0) : (y < 0), 3);
-#else
- {
- SCM_BIGDIG zdigs[SCM_DIGSPERLONG];
- scm_longdigs (z, zdigs);
- z = scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
- zdigs, SCM_DIGSPERLONG,
- SCM_BIGSIGN (x) ? (y > 0) : (y < 0), 3);
- }
-#endif
- return z ? z : scm_makdbl (scm_big2dbl (x) / SCM_INUM (y), 0.0);
- }
- SCM_ASRTGO (SCM_NIMP (y), bady);
- if (SCM_BIGP (y))
- {
- z = scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
- SCM_BDIGITS (y), SCM_NUMDIGS (y),
- SCM_BIGSIGN (x) ^ SCM_BIGSIGN (y), 3);
- return z ? z : scm_makdbl (scm_big2dbl (x) / scm_big2dbl (y),
- 0.0);
- }
- SCM_ASRTGO (SCM_INEXP (y), bady);
- if (SCM_REALP (y))
- return scm_makdbl (scm_big2dbl (x) / SCM_REALPART (y), 0.0);
- a = scm_big2dbl (x);
- goto complex_div;
- }
-#endif
- SCM_ASRTGO (SCM_INEXP (x), badx2);
- if (SCM_INUMP (y))
- {
- d = SCM_INUM (y);
- goto basic_div;
- }
-#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (y), bady);
- if (SCM_BIGP (y))
- {
- d = scm_big2dbl (y);
- goto basic_div;
- }
- SCM_ASRTGO (SCM_INEXP (y), bady);
-#else
- SCM_ASRTGO (SCM_INEXP (y), bady);
-#endif
- if (SCM_REALP (y))
- {
- d = SCM_REALPART (y);
- basic_div:
- return scm_makdbl (SCM_REALPART (x) / d,
- SCM_CPLXP (x) ? SCM_IMAG (x) / d : 0.0);
- }
- a = SCM_REALPART (x);
- if (SCM_REALP (x))
- goto complex_div;
- r = SCM_REAL (y);
- i = SCM_IMAG (y);
- d = r * r + i * i;
- return scm_makdbl ((a * r + SCM_IMAG (x) * i) / d,
- (SCM_IMAG (x) * r - a * i) / d);
- }
- if (SCM_UNBNDP (y))
- {
- if ((SCM_MAKINUM (1L) == x) || (SCM_MAKINUM (-1L) == x))
+SCM_GPROC1 (s_divide, "/", scm_tc7_asubr, scm_divide, g_divide);
+
+SCM
+scm_divide (SCM x, SCM y)
+{
+ double a;
+
+ if (SCM_UNBNDP (y)) {
+ if (SCM_UNBNDP (x)) {
+ SCM_WTA_DISPATCH_0 (g_divide, x, SCM_ARG1, s_divide);
+ } else if (SCM_INUMP (x)) {
+ if (SCM_EQ_P (x, SCM_MAKINUM (1L)) || SCM_EQ_P (x, SCM_MAKINUM (-1L))) {
return x;
- return scm_makdbl (1.0 / ((double) SCM_INUM (x)), 0.0);
+ } else {
+ return scm_make_real (1.0 / (double) SCM_INUM (x));
+ }
+ } else if (SCM_BIGP (x)) {
+ return scm_make_real (1.0 / scm_big2dbl (x));
+ } else if (SCM_REALP (x)) {
+ return scm_make_real (1.0 / SCM_REAL_VALUE (x));
+ } else if (SCM_COMPLEXP (x)) {
+ double r = SCM_COMPLEX_REAL (x);
+ double i = SCM_COMPLEX_IMAG (x);
+ double d = r * r + i * i;
+ return scm_make_complex (r / d, -i / d);
+ } else {
+ SCM_WTA_DISPATCH_1 (g_divide, x, SCM_ARG1, s_divide);
}
- if (SCM_NINUMP (y))
- {
+ }
+
+ if (SCM_INUMP (x)) {
+ long xx = SCM_INUM (x);
+ if (SCM_INUMP (y)) {
+ long yy = SCM_INUM (y);
+ if (yy == 0) {
+ scm_num_overflow (s_divide);
+ } else if (xx % yy != 0) {
+ return scm_make_real ((double) xx / (double) yy);
+ } else {
+ long z = xx / yy;
+ if (SCM_FIXABLE (z)) {
+ return SCM_MAKINUM (z);
+ } else {
#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (y), bady);
- if (SCM_BIGP (y))
- return scm_makdbl (SCM_INUM (x) / scm_big2dbl (y), 0.0);
- if (!(SCM_INEXP (y)))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_divide, x, y, SCM_ARGn, s_divide);
- }
+ return scm_long2big (z);
#else
- if (!SCM_INEXP (y))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_divide, x, y, SCM_ARGn, s_divide);
- }
+ return scm_make_real ((double) xx / (double) yy);
#endif
- if (SCM_REALP (y))
- return scm_makdbl (SCM_INUM (x) / SCM_REALPART (y), 0.0);
- a = SCM_INUM (x);
- complex_div:
- r = SCM_REAL (y);
- i = SCM_IMAG (y);
- d = r * r + i * i;
- return scm_makdbl ((a * r) / d, (-a * i) / d);
- }
-#else
-#ifdef SCM_BIGDIG
- if (SCM_NINUMP (x))
- {
- SCM z;
- SCM_GASSERT2 (SCM_BIGP (x),
- g_divide, x, y, SCM_ARG1, s_divide);
- if (SCM_UNBNDP (y))
- goto ov;
- if (SCM_INUMP (y))
- {
- z = SCM_INUM (y);
- if (!z)
- goto ov;
- if (1 == z)
- return x;
- if (z < 0)
- z = -z;
- if (z < SCM_BIGRAD)
- {
- SCM w = scm_copybig (x, SCM_BIGSIGN (x) ? (y > 0) : (y < 0));
- if (scm_divbigdig (SCM_BDIGITS (w), SCM_NUMDIGS (w),
- (SCM_BIGDIG) z))
- goto ov;
- return w;
- }
+ }
+ }
+ } else if (SCM_BIGP (y)) {
+ return scm_make_real ((double) xx / scm_big2dbl (y));
+ } else if (SCM_REALP (y)) {
+ return scm_make_real ((double) xx / SCM_REAL_VALUE (y));
+ } else if (SCM_COMPLEXP (y)) {
+ a = xx;
+ complex_div: /* y _must_ be a complex number */
+ {
+ double r = SCM_COMPLEX_REAL (y);
+ double i = SCM_COMPLEX_IMAG (y);
+ double d = r * r + i * i;
+ return scm_make_complex ((a * r) / d, (-a * i) / d);
+ }
+ } else {
+ SCM_WTA_DISPATCH_2 (g_divide, x, y, SCM_ARGn, s_divide);
+ }
+ } else if (SCM_BIGP (x)) {
+ if (SCM_INUMP (y)) {
+ long int yy = SCM_INUM (y);
+ if (yy == 0) {
+ scm_num_overflow (s_divide);
+ } else if (yy == 1) {
+ return x;
+ } else {
+ long z = yy < 0 ? -yy : yy;
+ if (z < SCM_BIGRAD) {
+ SCM w = scm_copybig (x, SCM_BIGSIGN (x) ? (yy > 0) : (yy < 0));
+ return scm_divbigdig (SCM_BDIGITS (w), SCM_NUMDIGS (w),
+ (SCM_BIGDIG) z)
+ ? scm_make_real (scm_big2dbl (x) / (double) yy)
+ : scm_normbig (w);
+ } else {
+ SCM w;
#ifndef SCM_DIGSTOOBIG
z = scm_pseudolong (z);
- z = scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
- &z, SCM_DIGSPERLONG,
- SCM_BIGSIGN (x) ? (y > 0) : (y < 0), 3);
+ w = scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
+ (SCM_BIGDIG *) & z, SCM_DIGSPERLONG,
+ SCM_BIGSIGN (x) ? (yy > 0) : (yy < 0), 3);
#else
- {
- SCM_BIGDIG zdigs[SCM_DIGSPERLONG];
- scm_longdigs (z, zdigs);
- z = scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
- zdigs, SCM_DIGSPERLONG,
- SCM_BIGSIGN (x) ? (y > 0) : (y < 0), 3);
- }
-#endif
+ SCM_BIGDIG zdigs[SCM_DIGSPERLONG];
+ scm_longdigs (z, zdigs);
+ w = scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
+ zdigs, SCM_DIGSPERLONG,
+ SCM_BIGSIGN (x) ? (yy > 0) : (yy < 0), 3);
+#endif
+ return (!SCM_UNBNDP (w))
+ ? w
+ : scm_make_real (scm_big2dbl (x) / (double) yy);
}
- else
- {
- SCM_ASRTGO (SCM_BIGP (y), bady);
- z = scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
+ }
+ } else if (SCM_BIGP (y)) {
+ SCM w = scm_divbigbig (SCM_BDIGITS (x), SCM_NUMDIGS (x),
SCM_BDIGITS (y), SCM_NUMDIGS (y),
SCM_BIGSIGN (x) ^ SCM_BIGSIGN (y), 3);
- }
- if (!z)
- goto ov;
- return z;
- }
- if (SCM_UNBNDP (y))
- {
- if ((SCM_MAKINUM (1L) == x) || (SCM_MAKINUM (-1L) == x))
- return x;
- goto ov;
- }
- if (SCM_NINUMP (y))
- {
- if (!SCM_BIGP (y))
- {
- bady:
- SCM_WTA_DISPATCH_2 (g_divide, x, y, SCM_ARGn, s_divide);
- }
- goto ov;
- }
-#else
- SCM_GASSERT2 (SCM_INUMP (x), g_divide, x, y, SCM_ARG1, s_divide);
- if (SCM_UNBNDP (y))
- {
- if ((SCM_MAKINUM (1L) == x) || (SCM_MAKINUM (-1L) == x))
- return x;
- goto ov;
- }
- SCM_GASSERT2 (SCM_INUMP (y), g_divide, x, y, SCM_ARGn, s_divide);
-#endif
-#endif
- {
- long z = SCM_INUM (y);
- if ((0 == z) || SCM_INUM (x) % z)
- goto ov;
- z = SCM_INUM (x) / z;
- if (SCM_FIXABLE (z))
- return SCM_MAKINUM (z);
-#ifdef SCM_BIGDIG
- return scm_long2big (z);
-#endif
-#ifdef SCM_FLOATS
- ov:
- return scm_makdbl (((double) SCM_INUM (x)) / ((double) SCM_INUM (y)), 0.0);
-#else
- ov:
- scm_num_overflow (s_divide);
- return SCM_UNSPECIFIED;
-#endif
+ return (!SCM_UNBNDP (w))
+ ? w
+ : scm_make_real (scm_big2dbl (x) / scm_big2dbl (y));
+ } else if (SCM_REALP (y)) {
+ return scm_make_real (scm_big2dbl (x) / SCM_REAL_VALUE (y));
+ } else if (SCM_COMPLEXP (y)) {
+ a = scm_big2dbl (x);
+ goto complex_div;
+ } else {
+ SCM_WTA_DISPATCH_2 (g_divide, x, y, SCM_ARGn, s_divide);
+ }
+ } else if (SCM_REALP (x)) {
+ double rx = SCM_REAL_VALUE (x);
+ if (SCM_INUMP (y)) {
+ return scm_make_real (rx / (double) SCM_INUM (y));
+ } else if (SCM_BIGP (y)) {
+ return scm_make_real (rx / scm_big2dbl (y));
+ } else if (SCM_REALP (y)) {
+ return scm_make_real (rx / SCM_REAL_VALUE (y));
+ } else if (SCM_COMPLEXP (y)) {
+ a = rx;
+ goto complex_div;
+ } else {
+ SCM_WTA_DISPATCH_2 (g_divide, x, y, SCM_ARGn, s_divide);
+ }
+ } else if (SCM_COMPLEXP (x)) {
+ double rx = SCM_COMPLEX_REAL (x);
+ double ix = SCM_COMPLEX_IMAG (x);
+ if (SCM_INUMP (y)) {
+ double d = SCM_INUM (y);
+ return scm_make_complex (rx / d, ix / d);
+ } else if (SCM_BIGP (y)) {
+ double d = scm_big2dbl (y);
+ return scm_make_complex (rx / d, ix / d);
+ } else if (SCM_REALP (y)) {
+ double d = SCM_REAL_VALUE (y);
+ return scm_make_complex (rx / d, ix / d);
+ } else if (SCM_COMPLEXP (y)) {
+ double ry = SCM_COMPLEX_REAL (y);
+ double iy = SCM_COMPLEX_IMAG (y);
+ double d = ry * ry + iy * iy;
+ return scm_make_complex ((rx * ry + ix * iy) / d,
+ (ix * ry - rx * iy) / d);
+ } else {
+ SCM_WTA_DISPATCH_2 (g_divide, x, y, SCM_ARGn, s_divide);
+ }
+ } else {
+ SCM_WTA_DISPATCH_2 (g_divide, x, y, SCM_ARG1, s_divide);
}
}
-
-
-#ifdef SCM_FLOATS
SCM_GPROC1 (s_asinh, "$asinh", scm_tc7_cxr, (SCM (*)()) scm_asinh, g_asinh);
double
static void
scm_two_doubles (SCM z1, SCM z2, const char *sstring, struct dpair *xy)
{
- if (SCM_INUMP (z1))
+ if (SCM_INUMP (z1)) {
xy->x = SCM_INUM (z1);
- else
- {
-#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (z1), badz1);
- if (SCM_BIGP (z1))
- xy->x = scm_big2dbl (z1);
- else
- {
-#ifndef SCM_RECKLESS
- if (!SCM_REALP (z1))
- badz1:scm_wta (z1, (char *) SCM_ARG1, sstring);
-#endif
- xy->x = SCM_REALPART (z1);
- }
-#else
- {
- SCM_ASSERT (SCM_REALP (z1), z1, SCM_ARG1, sstring);
- xy->x = SCM_REALPART (z1);
- }
-#endif
- }
- if (SCM_INUMP (z2))
+ } else if (SCM_BIGP (z1)) {
+ xy->x = scm_big2dbl (z1);
+ } else if (SCM_REALP (z1)) {
+ xy->x = SCM_REAL_VALUE (z1);
+ } else {
+ scm_wrong_type_arg (sstring, SCM_ARG1, z1);
+ }
+
+ if (SCM_INUMP (z2)) {
xy->y = SCM_INUM (z2);
- else
- {
-#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (z2), badz2);
- if (SCM_BIGP (z2))
- xy->y = scm_big2dbl (z2);
- else
- {
-#ifndef SCM_RECKLESS
- if (!(SCM_REALP (z2)))
- badz2:scm_wta (z2, (char *) SCM_ARG2, sstring);
-#endif
- xy->y = SCM_REALPART (z2);
- }
-#else
- {
- SCM_ASSERT (SCM_REALP (z2), z2, SCM_ARG2, sstring);
- xy->y = SCM_REALPART (z2);
- }
-#endif
- }
+ } else if (SCM_BIGP (z2)) {
+ xy->y = scm_big2dbl (z2);
+ } else if (SCM_REALP (z2)) {
+ xy->y = SCM_REAL_VALUE (z2);
+ } else {
+ scm_wrong_type_arg (sstring, SCM_ARG2, z2);
+ }
}
-
-
-GUILE_PROC (scm_sys_expt, "$expt", 2, 0, 0,
+SCM_DEFINE (scm_sys_expt, "$expt", 2, 0, 0,
(SCM z1, SCM z2),
-"")
+ "")
#define FUNC_NAME s_scm_sys_expt
{
struct dpair xy;
scm_two_doubles (z1, z2, FUNC_NAME, &xy);
- return scm_makdbl (pow (xy.x, xy.y), 0.0);
+ return scm_make_real (pow (xy.x, xy.y));
}
#undef FUNC_NAME
-
-GUILE_PROC (scm_sys_atan2, "$atan2", 2, 0, 0,
+SCM_DEFINE (scm_sys_atan2, "$atan2", 2, 0, 0,
(SCM z1, SCM z2),
-"")
+ "")
#define FUNC_NAME s_scm_sys_atan2
{
struct dpair xy;
scm_two_doubles (z1, z2, FUNC_NAME, &xy);
- return scm_makdbl (atan2 (xy.x, xy.y), 0.0);
+ return scm_make_real (atan2 (xy.x, xy.y));
}
#undef FUNC_NAME
-
-GUILE_PROC (scm_make_rectangular, "make-rectangular", 2, 0, 0,
- (SCM z1, SCM z2),
-"")
+SCM_DEFINE (scm_make_rectangular, "make-rectangular", 2, 0, 0,
+ (SCM real, SCM imaginary),
+ "Return a complex number constructed of the given REAL and\n"
+ "IMAGINARY parts.")
#define FUNC_NAME s_scm_make_rectangular
{
struct dpair xy;
- scm_two_doubles (z1, z2, FUNC_NAME, &xy);
- return scm_makdbl (xy.x, xy.y);
+ scm_two_doubles (real, imaginary, FUNC_NAME, &xy);
+ return scm_make_complex (xy.x, xy.y);
}
#undef FUNC_NAME
-GUILE_PROC (scm_make_polar, "make-polar", 2, 0, 0,
+SCM_DEFINE (scm_make_polar, "make-polar", 2, 0, 0,
(SCM z1, SCM z2),
-"")
+ "Return the complex number Z1 * e^(i * Z2).")
#define FUNC_NAME s_scm_make_polar
{
struct dpair xy;
scm_two_doubles (z1, z2, FUNC_NAME, &xy);
- return scm_makdbl (xy.x * cos (xy.y), xy.x * sin (xy.y));
+ return scm_make_complex (xy.x * cos (xy.y), xy.x * sin (xy.y));
}
#undef FUNC_NAME
-
-
SCM_GPROC (s_real_part, "real-part", 1, 0, 0, scm_real_part, g_real_part);
SCM
scm_real_part (SCM z)
{
- if (SCM_NINUMP (z))
- {
-#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (z), badz);
- if (SCM_BIGP (z))
- return z;
- if (!(SCM_INEXP (z)))
- {
- badz:
- SCM_WTA_DISPATCH_1 (g_real_part, z, SCM_ARG1, s_real_part);
- }
-#else
- SCM_GASSERT1 (SCM_INEXP (z),
- g_real_part, z, SCM_ARG1, s_real_part);
-#endif
- if (SCM_CPLXP (z))
- return scm_makdbl (SCM_REAL (z), 0.0);
- }
- return z;
+ if (SCM_INUMP (z)) {
+ return z;
+ } else if (SCM_BIGP (z)) {
+ return z;
+ } else if (SCM_REALP (z)) {
+ return z;
+ } else if (SCM_COMPLEXP (z)) {
+ return scm_make_real (SCM_COMPLEX_REAL (z));
+ } else {
+ SCM_WTA_DISPATCH_1 (g_real_part, z, SCM_ARG1, s_real_part);
+ }
}
-
SCM_GPROC (s_imag_part, "imag-part", 1, 0, 0, scm_imag_part, g_imag_part);
SCM
scm_imag_part (SCM z)
{
- if (SCM_INUMP (z))
+ if (SCM_INUMP (z)) {
return SCM_INUM0;
-#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (z), badz);
- if (SCM_BIGP (z))
+ } else if (SCM_BIGP (z)) {
return SCM_INUM0;
- if (!(SCM_INEXP (z)))
- {
- badz:
- SCM_WTA_DISPATCH_1 (g_imag_part, z, SCM_ARG1, s_imag_part);
- }
-#else
- SCM_GASSERT1 (SCM_INEXP (z),
- g_imag_part, z, SCM_ARG1, s_imag_part);
-#endif
- if (SCM_CPLXP (z))
- return scm_makdbl (SCM_IMAG (z), 0.0);
- return scm_flo0;
+ } else if (SCM_REALP (z)) {
+ return scm_flo0;
+ } else if (SCM_COMPLEXP (z)) {
+ return scm_make_real (SCM_COMPLEX_IMAG (z));
+ } else {
+ SCM_WTA_DISPATCH_1 (g_imag_part, z, SCM_ARG1, s_imag_part);
+ }
}
-
SCM_GPROC (s_magnitude, "magnitude", 1, 0, 0, scm_magnitude, g_magnitude);
SCM
scm_magnitude (SCM z)
{
- if (SCM_INUMP (z))
- return scm_abs (z);
+ if (SCM_INUMP (z)) {
+ long int zz = SCM_INUM (z);
+ if (zz >= 0) {
+ return z;
+ } else if (SCM_POSFIXABLE (-zz)) {
+ return SCM_MAKINUM (-zz);
+ } else {
#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (z), badz);
- if (SCM_BIGP (z))
- return scm_abs (z);
- if (!(SCM_INEXP (z)))
- {
- badz:
- SCM_WTA_DISPATCH_1 (g_magnitude, z, SCM_ARG1, s_magnitude);
- }
+ return scm_long2big (-zz);
#else
- SCM_GASSERT1 (SCM_INEXP (z),
- g_magnitude, z, SCM_ARG1, s_magnitude);
+ scm_num_overflow (s_magnitude);
#endif
- if (SCM_CPLXP (z))
- {
- double i = SCM_IMAG (z), r = SCM_REAL (z);
- return scm_makdbl (sqrt (i * i + r * r), 0.0);
}
- return scm_makdbl (fabs (SCM_REALPART (z)), 0.0);
+ } else if (SCM_BIGP (z)) {
+ if (!SCM_BIGSIGN (z)) {
+ return z;
+ } else {
+ return scm_copybig (z, 0);
+ }
+ } else if (SCM_REALP (z)) {
+ return scm_make_real (fabs (SCM_REAL_VALUE (z)));
+ } else if (SCM_COMPLEXP (z)) {
+ double r = SCM_COMPLEX_REAL (z);
+ double i = SCM_COMPLEX_IMAG (z);
+ return scm_make_real (sqrt (i * i + r * r));
+ } else {
+ SCM_WTA_DISPATCH_1 (g_magnitude, z, SCM_ARG1, s_magnitude);
+ }
}
-
-
SCM_GPROC (s_angle, "angle", 1, 0, 0, scm_angle, g_angle);
SCM
scm_angle (SCM z)
{
- double x, y = 0.0;
- if (SCM_INUMP (z))
- {
- x = (z >= SCM_INUM0) ? 1.0 : -1.0;
- goto do_angle;
- }
-#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (z), badz);
- if (SCM_BIGP (z))
- {
- x = (SCM_TYP16 (z) == scm_tc16_bigpos) ? 1.0 : -1.0;
- goto do_angle;
- }
- if (!(SCM_INEXP (z)))
- {
- badz:
- SCM_WTA_DISPATCH_1 (g_angle, z, SCM_ARG1, s_angle);
- }
-#else
- SCM_GASSERT1 (SCM_INEXP (z), g_angle, z, SCM_ARG1, s_angle);
-#endif
- if (SCM_REALP (z))
- {
- x = SCM_REALPART (z);
- goto do_angle;
- }
- x = SCM_REAL (z);
- y = SCM_IMAG (z);
- do_angle:
- return scm_makdbl (atan2 (y, x), 0.0);
+ if (SCM_INUMP (z)) {
+ if (SCM_INUM (z) >= 0) {
+ return scm_make_real (atan2 (0.0, 1.0));
+ } else {
+ return scm_make_real (atan2 (0.0, -1.0));
+ }
+ } else if (SCM_BIGP (z)) {
+ if (SCM_BIGSIGN (z)) {
+ return scm_make_real (atan2 (0.0, -1.0));
+ } else {
+ return scm_make_real (atan2 (0.0, 1.0));
+ }
+ } else if (SCM_REALP (z)) {
+ return scm_make_real (atan2 (0.0, SCM_REAL_VALUE (z)));
+ } else if (SCM_COMPLEXP (z)) {
+ return scm_make_real (atan2 (SCM_COMPLEX_IMAG (z), SCM_COMPLEX_REAL (z)));
+ } else {
+ SCM_WTA_DISPATCH_1 (g_angle, z, SCM_ARG1, s_angle);
+ }
}
-GUILE_PROC (scm_inexact_to_exact, "inexact->exact", 1, 0, 0,
+SCM_DEFINE (scm_inexact_to_exact, "inexact->exact", 1, 0, 0,
(SCM z),
-"")
+ "Returns an exact number that is numerically closest to Z.")
#define FUNC_NAME s_scm_inexact_to_exact
{
- if (SCM_INUMP (z))
+ if (SCM_INUMP (z)) {
return z;
-#ifdef SCM_BIGDIG
- SCM_ASRTGO (SCM_NIMP (z), badz);
- if (SCM_BIGP (z))
+ } else if (SCM_BIGP (z)) {
return z;
-#ifndef SCM_RECKLESS
- if (!(SCM_REALP (z)))
- {
- badz:
- SCM_WTA (1, z);
- }
-#endif
-#else
- SCM_VALIDATE_REAL(1,z);
-#endif
+ } else if (SCM_REALP (z)) {
+ double u = floor (SCM_REAL_VALUE (z) + 0.5);
+ long lu = (long) u;
+ if (SCM_FIXABLE (lu)) {
+ return SCM_MAKINUM (lu);
#ifdef SCM_BIGDIG
- {
- double u = floor (SCM_REALPART (z) + 0.5);
- if ((u <= SCM_MOST_POSITIVE_FIXNUM) && (-u <= -SCM_MOST_NEGATIVE_FIXNUM))
- {
- /* Negation is a workaround for HP700 cc bug */
- SCM ans = SCM_MAKINUM ((long) u);
- if (SCM_INUM (ans) == (long) u)
- return ans;
- }
- SCM_ASRTGO (isfinite (u), badz); /* problem? */
- return scm_dbl2big (u);
- }
-#else
- return SCM_MAKINUM ((long) floor (SCM_REALPART (z) + 0.5));
+ } else if (isfinite (u)) {
+ return scm_dbl2big (u);
#endif
+ } else {
+ scm_num_overflow (s_scm_inexact_to_exact);
+ }
+ } else {
+ SCM_WRONG_TYPE_ARG (1, z);
+ }
}
#undef FUNC_NAME
-
-#else /* ~SCM_FLOATS */
-SCM_GPROC (s_trunc, "truncate", 1, 0, 0, scm_trunc, g_trunc);
-
-SCM
-scm_trunc (SCM x)
-{
- SCM_GASSERT2 (SCM_INUMP (x), g_trunc, x, y, SCM_ARG1, s_truncate);
- return x;
-}
-
-
-
-#endif /* SCM_FLOATS */
-
#ifdef SCM_BIGDIG
-#ifdef SCM_FLOATS
/* d must be integer */
SCM
SCM_BIGDIG *digits = SCM_BDIGITS (b);
while (i--)
ans = digits[i] + SCM_BIGRAD * ans;
- if (scm_tc16_bigneg == SCM_TYP16 (b))
- return -ans;
+ if (SCM_BIGSIGN (b))
+ return - ans;
return ans;
}
#endif
-#endif
SCM
#ifdef SCM_BIGDIG
return scm_long2big (sl);
#else
-#ifdef SCM_FLOATS
- return scm_makdbl ((double) sl, 0.0);
-#else
- return SCM_BOOL_F;
-#endif
+ return scm_make_real ((double) sl);
#endif
}
return SCM_MAKINUM (sl);
#ifdef SCM_BIGDIG
return scm_long_long2big (sl);
#else
-#ifdef SCM_FLOATS
- return scm_makdbl ((double) sl, 0.0);
-#else
- return SCM_BOOL_F;
-#endif
+ return scm_make_real ((double) sl);
#endif
}
- return SCM_MAKINUM (sl);
+ else
+ {
+ /* we know that sl fits into an inum */
+ return SCM_MAKINUM ((scm_bits_t) sl);
+ }
}
-#endif
+#endif /* HAVE_LONG_LONGS */
SCM
#ifdef SCM_BIGDIG
return scm_ulong2big (sl);
#else
-#ifdef SCM_FLOATS
- return scm_makdbl ((double) sl, 0.0);
-#else
- return SCM_BOOL_F;
-#endif
+ return scm_make_real ((double) sl);
#endif
}
return SCM_MAKINUM (sl);
long
scm_num2long (SCM num, char *pos, const char *s_caller)
{
- long res;
-
- if (SCM_INUMP (num))
- {
- res = SCM_INUM (num);
- return res;
+ if (SCM_INUMP (num)) {
+ return SCM_INUM (num);
+ } else if (SCM_BIGP (num)) {
+ long int res;
+ /* can't use res directly in case num is -2^31. */
+ unsigned long int pos_res = 0;
+ unsigned long int old_res = 0;
+ scm_sizet l;
+
+ for (l = SCM_NUMDIGS (num); l--;) {
+ pos_res = SCM_BIGUP (pos_res) + SCM_BDIGITS (num)[l];
+ if (pos_res >= old_res) {
+ old_res = pos_res;
+ } else {
+ /* overflow. */
+ scm_out_of_range (s_caller, num);
+ }
}
- SCM_ASRTGO (SCM_NIMP (num), wrong_type_arg);
-#ifdef SCM_FLOATS
- if (SCM_REALP (num))
- {
- volatile double u = SCM_REALPART (num);
-
- res = u;
- if (res != u)
- goto out_of_range;
- return res;
+ if (SCM_BIGSIGN (num)) {
+ res = -pos_res;
+ if (res <= 0) {
+ return res;
+ } else {
+ scm_out_of_range (s_caller, num);
+ }
+ } else {
+ res = pos_res;
+ if (res >= 0) {
+ return res;
+ } else {
+ scm_out_of_range (s_caller, num);
+ }
}
-#endif
-#ifdef SCM_BIGDIG
- if (SCM_BIGP (num))
- {
- unsigned long oldres = 0;
- scm_sizet l;
- /* can't use res directly in case num is -2^31. */
- unsigned long pos_res = 0;
-
- for (l = SCM_NUMDIGS (num); l--;)
- {
- pos_res = SCM_BIGUP (pos_res) + SCM_BDIGITS (num)[l];
- /* check for overflow. */
- if (pos_res < oldres)
- goto out_of_range;
- oldres = pos_res;
- }
- if (SCM_TYP16 (num) == scm_tc16_bigpos)
- {
- res = pos_res;
- if (res < 0)
- goto out_of_range;
- }
- else
- {
- res = -pos_res;
- if (res > 0)
- goto out_of_range;
- }
+ } else if (SCM_REALP (num)) {
+ double u = SCM_REAL_VALUE (num);
+ long int res = u;
+ if ((double) res == u) {
return res;
+ } else {
+ scm_out_of_range (s_caller, num);
}
-#endif
- wrong_type_arg:
- scm_wrong_type_arg (s_caller, (int) pos, num);
- out_of_range:
- scm_out_of_range (s_caller, num);
+ } else {
+ scm_wrong_type_arg (s_caller, (int) pos, num);
+ }
}
-
#ifdef HAVE_LONG_LONGS
long_long
scm_num2long_long (SCM num, char *pos, const char *s_caller)
{
- long_long res;
-
- if (SCM_INUMP (num))
- {
- res = SCM_INUM (num);
- return res;
+ if (SCM_INUMP (num)) {
+ return SCM_INUM (num);
+ } else if (SCM_BIGP (num)) {
+ long long res;
+ /* can't use res directly in case num is -2^63. */
+ unsigned long long int pos_res = 0;
+ unsigned long long int old_res = 0;
+ scm_sizet l;
+
+ for (l = SCM_NUMDIGS (num); l--;) {
+ pos_res = SCM_LONGLONGBIGUP (pos_res) + SCM_BDIGITS (num)[l];
+ if (pos_res >= old_res) {
+ old_res = pos_res;
+ } else {
+ /* overflow. */
+ scm_out_of_range (s_caller, num);
+ }
}
- SCM_ASRTGO (SCM_NIMP (num), wrong_type_arg);
-#ifdef SCM_FLOATS
- if (SCM_REALP (num))
- {
- double u = SCM_REALPART (num);
-
- res = u;
- if ((res < 0 && u > 0) || (res > 0 && u < 0)) /* check for overflow. */
- goto out_of_range;
-
- return res;
+ if (SCM_BIGSIGN (num)) {
+ res = -pos_res;
+ if (res <= 0) {
+ return res;
+ } else {
+ scm_out_of_range (s_caller, num);
+ }
+ } else {
+ res = pos_res;
+ if (res >= 0) {
+ return res;
+ } else {
+ scm_out_of_range (s_caller, num);
+ }
}
-#endif
-#ifdef SCM_BIGDIG
- if (SCM_BIGP (num))
- {
- unsigned long long oldres = 0;
- scm_sizet l;
- /* can't use res directly in case num is -2^63. */
- unsigned long long pos_res = 0;
-
- for (l = SCM_NUMDIGS (num); l--;)
- {
- pos_res = SCM_LONGLONGBIGUP (pos_res) + SCM_BDIGITS (num)[l];
- /* check for overflow. */
- if (pos_res < oldres)
- goto out_of_range;
- oldres = pos_res;
- }
- if (SCM_TYP16 (num) == scm_tc16_bigpos)
- {
- res = pos_res;
- if (res < 0)
- goto out_of_range;
- }
- else
- {
- res = -pos_res;
- if (res > 0)
- goto out_of_range;
- }
+ } else if (SCM_REALP (num)) {
+ double u = SCM_REAL_VALUE (num);
+ long long int res = u;
+ if ((double) res == u) {
return res;
+ } else {
+ scm_out_of_range (s_caller, num);
}
-#endif
- wrong_type_arg:
- scm_wrong_type_arg (s_caller, (int) pos, num);
- out_of_range:
- scm_out_of_range (s_caller, num);
+ } else {
+ scm_wrong_type_arg (s_caller, (int) pos, num);
+ }
}
-#endif
+#endif /* HAVE_LONG_LONGS */
unsigned long
scm_num2ulong (SCM num, char *pos, const char *s_caller)
{
- unsigned long res;
-
- if (SCM_INUMP (num))
- {
- if (SCM_INUM (num) < 0)
- goto out_of_range;
- res = SCM_INUM (num);
- return res;
- }
- SCM_ASRTGO (SCM_NIMP (num), wrong_type_arg);
-#ifdef SCM_FLOATS
- if (SCM_REALP (num))
- {
- double u = SCM_REALPART (num);
-
- res = u;
- if (res != u)
- goto out_of_range;
- return res;
+ if (SCM_INUMP (num)) {
+ long nnum = SCM_INUM (num);
+ if (nnum >= 0) {
+ return nnum;
+ } else {
+ scm_out_of_range (s_caller, num);
+ }
+ } else if (SCM_BIGP (num)) {
+ unsigned long int res = 0;
+ unsigned long int old_res = 0;
+ scm_sizet l;
+
+ for (l = SCM_NUMDIGS (num); l--;) {
+ res = SCM_BIGUP (res) + SCM_BDIGITS (num)[l];
+ if (res >= old_res) {
+ old_res = res;
+ } else {
+ scm_out_of_range (s_caller, num);
+ }
}
-#endif
-#ifdef SCM_BIGDIG
- if (SCM_BIGP (num))
- {
- unsigned long oldres = 0;
- scm_sizet l;
-
- res = 0;
- for (l = SCM_NUMDIGS (num); l--;)
- {
- res = SCM_BIGUP (res) + SCM_BDIGITS (num)[l];
- if (res < oldres)
- goto out_of_range;
- oldres = res;
- }
+ return res;
+ } else if (SCM_REALP (num)) {
+ double u = SCM_REAL_VALUE (num);
+ unsigned long int res = u;
+ if ((double) res == u) {
return res;
+ } else {
+ scm_out_of_range (s_caller, num);
}
-#endif
- wrong_type_arg:
- scm_wrong_type_arg (s_caller, (int) pos, num);
- out_of_range:
- scm_out_of_range (s_caller, num);
-}
-
-
-#ifdef SCM_FLOATS
-#ifndef DBL_DIG
-static void
-add1 (double f, double *fsum)
-{
- *fsum = f + 1.0;
+ } else {
+ scm_wrong_type_arg (s_caller, (int) pos, num);
+ }
}
-#endif
-#endif
-
void
scm_init_numbers ()
{
- scm_add_feature("complex");
-#ifdef SCM_FLOATS
- scm_add_feature("inexact");
-#ifdef SCM_SINGLES
- SCM_NEWSMOB(scm_flo0,scm_tc_flo,NULL);
-#else
- SCM_NEWSMOB(scm_flo0,scm_tc_dblr,scm_must_malloc (1L * sizeof (double), "real"));
- SCM_REAL (scm_flo0) = 0.0;
-#endif
+ scm_add_feature ("complex");
+ scm_add_feature ("inexact");
+ scm_flo0 = scm_make_real (0.0);
#ifdef DBL_DIG
scm_dblprec = (DBL_DIG > 20) ? 20 : DBL_DIG;
#else
{ /* determine floating point precision */
double f = 0.1;
double fsum = 1.0 + f;
- while (fsum != 1.0)
- {
+ while (fsum != 1.0) {
+ if (++scm_dblprec > 20) {
+ fsum = 1.0;
+ } else {
f /= 10.0;
- if (++scm_dblprec > 20)
- break;
- add1 (f, &fsum);
+ fsum = f + 1.0;
}
+ }
scm_dblprec = scm_dblprec - 1;
}
#endif /* DBL_DIG */
-#endif
-#include "numbers.x"
+#include "libguile/numbers.x"
}
+
+/*
+ Local Variables:
+ c-file-style: "gnu"
+ End:
+*/
HCoop / bpt / guile.git / blobdiff