-/* Copyright (C) 1995,1996,1997 Free Software Foundation, Inc.
-
+/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001 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)
/* data initialization and C<->Scheme data conversion */
-#include <stdio.h>
-
-#include <gh.h>
+#include "libguile/gh.h"
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
/* data conversion C->scheme */
-SCM
-gh_int2scmb (int x) /* this is being phased out */
-{
- return (x ? SCM_BOOL_T : SCM_BOOL_F);
-}
+
SCM
gh_bool2scm (int x)
{
- return (x ? SCM_BOOL_T : SCM_BOOL_F);
+ return SCM_BOOL(x);
}
SCM
gh_int2scm (int x)
SCM
gh_double2scm (double x)
{
- return scm_makdbl (x, 0.0);
+ return scm_make_real (x);
}
SCM
gh_char2scm (char c)
{
- return SCM_MAKICHR (c);
+ return SCM_MAKE_CHAR (c);
}
SCM
-gh_str2scm (char *s, int len)
+gh_str2scm (const char *s, size_t len)
{
- return scm_makfromstr (s, len, 0);
+ return scm_mem2string (s, len);
}
SCM
-gh_str02scm (char *s)
+gh_str02scm (const char *s)
{
return scm_makfrom0str (s);
}
If START + LEN is off the end of DST, signal an out-of-range
error. */
void
-gh_set_substr (char *src, SCM dst, int start, int len)
+gh_set_substr (char *src, SCM dst, long start, size_t len)
{
char *dst_ptr;
- unsigned long dst_len, effective_length;
+ size_t dst_len;
- SCM_ASSERT (SCM_NIMP (dst) && SCM_STRINGP (dst), dst, SCM_ARG3,
- "gh_set_substr");
- scm_protect_object (dst);
- dst_ptr = SCM_CHARS (dst);
- dst_len = SCM_LENGTH (dst);
- effective_length = (len < dst_len) ? len : dst_len;
- memcpy (dst_ptr + start, src, effective_length);
- /* FIXME: must signal an error if len > dst_len */
- scm_unprotect_object (dst);
+ SCM_ASSERT (SCM_STRINGP (dst), dst, SCM_ARG3, "gh_set_substr");
+
+ dst_ptr = SCM_STRING_CHARS (dst);
+ dst_len = SCM_STRING_LENGTH (dst);
+ SCM_ASSERT (start + len <= dst_len, dst, SCM_ARG4, "gh_set_substr");
+
+ memmove (dst_ptr + start, src, len);
+ scm_remember_upto_here_1 (dst);
}
/* Return the symbol named SYMBOL_STR. */
SCM
-gh_symbol2scm (char *symbol_str)
+gh_symbol2scm (const char *symbol_str)
{
- return SCM_CAR (scm_intern (symbol_str, strlen (symbol_str)));
+ return scm_str2symbol(symbol_str);
}
+SCM
+gh_ints2scm (const int *d, long n)
+{
+ long i;
+ SCM v = scm_c_make_vector (n, SCM_UNSPECIFIED);
+ SCM *velts = SCM_VELTS(v);
+
+ for (i = 0; i < n; ++i)
+ velts[i] = (SCM_FIXABLE (d[i]) ? SCM_MAKINUM (d[i]) : scm_i_long2big (d[i]));
+
+ return v;
+}
+
+SCM
+gh_doubles2scm (const double *d, long n)
+{
+ long i;
+ SCM v = scm_c_make_vector (n, SCM_UNSPECIFIED);
+ SCM *velts = SCM_VELTS(v);
+
+ for(i = 0; i < n; i++)
+ velts[i] = scm_make_real (d[i]);
+ return v;
+}
+
+#ifdef HAVE_ARRAYS
+/* Do not use this function for building normal Scheme vectors, unless
+ you arrange for the elements to be protected from GC while you
+ initialize the vector. */
+static SCM
+makvect (char *m, size_t len, int type)
+{
+ return scm_cell (SCM_MAKE_UVECTOR_TAG (len, type), (scm_t_bits) m);
+}
+
+SCM
+gh_chars2byvect (const char *d, long n)
+{
+ char *m = scm_gc_malloc (n * sizeof (char), "vector");
+ memcpy (m, d, n * sizeof (char));
+ return makvect (m, n, scm_tc7_byvect);
+}
+
+SCM
+gh_shorts2svect (const short *d, long n)
+{
+ char *m = scm_gc_malloc (n * sizeof (short), "vector");
+ memcpy (m, d, n * sizeof (short));
+ return makvect (m, n, scm_tc7_svect);
+}
+
+SCM
+gh_longs2ivect (const long *d, long n)
+{
+ char *m = scm_gc_malloc (n * sizeof (long), "vector");
+ memcpy (m, d, n * sizeof (long));
+ return makvect (m, n, scm_tc7_ivect);
+}
+
+SCM
+gh_ulongs2uvect (const unsigned long *d, long n)
+{
+ char *m = scm_gc_malloc (n * sizeof (unsigned long), "vector");
+ memcpy (m, d, n * sizeof (unsigned long));
+ return makvect (m, n, scm_tc7_uvect);
+}
+
+SCM
+gh_floats2fvect (const float *d, long n)
+{
+ char *m = scm_gc_malloc (n * sizeof (float), "vector");
+ memcpy (m, d, n * sizeof (float));
+ return makvect (m, n, scm_tc7_fvect);
+}
+
+SCM
+gh_doubles2dvect (const double *d, long n)
+{
+ char *m = scm_gc_malloc (n * sizeof (double), "vector");
+ memcpy (m, d, n * sizeof (double));
+ return makvect (m, n, scm_tc7_dvect);
+}
+#endif
/* data conversion scheme->C */
int
gh_scm2bool (SCM obj)
{
- return ((obj) == SCM_BOOL_F) ? 0 : 1;
+ return (SCM_FALSEP (obj)) ? 0 : 1;
}
unsigned long
gh_scm2ulong (SCM obj)
{
- return scm_num2ulong (obj, (char *) SCM_ARG1, "gh_scm2ulong");
+ return scm_num2ulong (obj, SCM_ARG1, "gh_scm2ulong");
}
long
gh_scm2long (SCM obj)
{
- return scm_num2long (obj, (char *) SCM_ARG1, "gh_scm2long");
+ return scm_num2long (obj, SCM_ARG1, "gh_scm2long");
}
int
gh_scm2int (SCM obj)
{
- /* NOTE: possible loss of precision here */
- return (int) scm_num2long (obj, (char *) SCM_ARG1, "gh_scm2int");
+ return (int) scm_num2int (obj, SCM_ARG1, "gh_scm2int");
}
double
gh_scm2double (SCM obj)
}
char
gh_scm2char (SCM obj)
+#define FUNC_NAME "gh_scm2char"
+{
+ SCM_VALIDATE_CHAR (SCM_ARG1, obj);
+ return SCM_CHAR (obj);
+}
+#undef FUNC_NAME
+
+/* Convert a vector, weak vector, string, substring or uniform vector
+ into an array of chars. If result array in arg 2 is NULL, malloc a
+ new one. If out of memory, return NULL. */
+char *
+gh_scm2chars (SCM obj, char *m)
+{
+ long i, n;
+ long v;
+ SCM val;
+ if (SCM_IMP (obj))
+ scm_wrong_type_arg (0, 0, obj);
+ switch (SCM_TYP7 (obj))
+ {
+ case scm_tc7_vector:
+ case scm_tc7_wvect:
+ n = SCM_VECTOR_LENGTH (obj);
+ for (i = 0; i < n; ++i)
+ {
+ val = SCM_VELTS (obj)[i];
+ if (SCM_INUMP (val))
+ {
+ v = SCM_INUM (val);
+ if (v < -128 || v > 255)
+ scm_out_of_range (0, obj);
+ }
+ else
+ scm_wrong_type_arg (0, 0, obj);
+ }
+ if (m == 0)
+ m = (char *) malloc (n * sizeof (char));
+ if (m == NULL)
+ return NULL;
+ for (i = 0; i < n; ++i)
+ m[i] = SCM_INUM (SCM_VELTS (obj)[i]);
+ break;
+#ifdef HAVE_ARRAYS
+ case scm_tc7_byvect:
+ n = SCM_UVECTOR_LENGTH (obj);
+ if (m == 0)
+ m = (char *) malloc (n * sizeof (char));
+ if (m == NULL)
+ return NULL;
+ memcpy (m, SCM_VELTS (obj), n * sizeof (char));
+ break;
+#endif
+ case scm_tc7_string:
+ n = SCM_STRING_LENGTH (obj);
+ if (m == 0)
+ m = (char *) malloc (n * sizeof (char));
+ if (m == NULL)
+ return NULL;
+ memcpy (m, SCM_VELTS (obj), n * sizeof (char));
+ break;
+ default:
+ scm_wrong_type_arg (0, 0, obj);
+ }
+ return m;
+}
+
+/* Convert a vector, weak vector or uniform vector into an array of
+ shorts. If result array in arg 2 is NULL, malloc a new one. If
+ out of memory, return NULL. */
+short *
+gh_scm2shorts (SCM obj, short *m)
+{
+ long i, n;
+ long v;
+ SCM val;
+ if (SCM_IMP (obj))
+ scm_wrong_type_arg (0, 0, obj);
+ switch (SCM_TYP7 (obj))
+ {
+ case scm_tc7_vector:
+ case scm_tc7_wvect:
+ n = SCM_VECTOR_LENGTH (obj);
+ for (i = 0; i < n; ++i)
+ {
+ val = SCM_VELTS (obj)[i];
+ if (SCM_INUMP (val))
+ {
+ v = SCM_INUM (val);
+ if (v < -32768 || v > 65535)
+ scm_out_of_range (0, obj);
+ }
+ else
+ scm_wrong_type_arg (0, 0, obj);
+ }
+ if (m == 0)
+ m = (short *) malloc (n * sizeof (short));
+ if (m == NULL)
+ return NULL;
+ for (i = 0; i < n; ++i)
+ m[i] = SCM_INUM (SCM_VELTS (obj)[i]);
+ break;
+#ifdef HAVE_ARRAYS
+ case scm_tc7_svect:
+ n = SCM_UVECTOR_LENGTH (obj);
+ if (m == 0)
+ m = (short *) malloc (n * sizeof (short));
+ if (m == NULL)
+ return NULL;
+ memcpy (m, SCM_VELTS (obj), n * sizeof (short));
+ break;
+#endif
+ default:
+ scm_wrong_type_arg (0, 0, obj);
+ }
+ return m;
+}
+
+/* Convert a vector, weak vector or uniform vector into an array of
+ longs. If result array in arg 2 is NULL, malloc a new one. If out
+ of memory, return NULL. */
+long *
+gh_scm2longs (SCM obj, long *m)
+{
+ long i, n;
+ SCM val;
+ if (SCM_IMP (obj))
+ scm_wrong_type_arg (0, 0, obj);
+ switch (SCM_TYP7 (obj))
+ {
+ case scm_tc7_vector:
+ case scm_tc7_wvect:
+ n = SCM_VECTOR_LENGTH (obj);
+ for (i = 0; i < n; ++i)
+ {
+ val = SCM_VELTS (obj)[i];
+ if (!SCM_INUMP (val) && !SCM_BIGP (val))
+ scm_wrong_type_arg (0, 0, obj);
+ }
+ if (m == 0)
+ m = (long *) malloc (n * sizeof (long));
+ if (m == NULL)
+ return NULL;
+ for (i = 0; i < n; ++i)
+ {
+ val = SCM_VELTS (obj)[i];
+ m[i] = SCM_INUMP (val)
+ ? SCM_INUM (val)
+ : scm_num2long (val, 0, NULL);
+ }
+ break;
+#ifdef HAVE_ARRAYS
+ case scm_tc7_ivect:
+ case scm_tc7_uvect:
+ n = SCM_UVECTOR_LENGTH (obj);
+ if (m == 0)
+ m = (long *) malloc (n * sizeof (long));
+ if (m == NULL)
+ return NULL;
+ memcpy (m, SCM_VELTS (obj), n * sizeof (long));
+ break;
+#endif
+ default:
+ scm_wrong_type_arg (0, 0, obj);
+ }
+ return m;
+}
+
+/* Convert a vector, weak vector or uniform vector into an array of
+ floats. If result array in arg 2 is NULL, malloc a new one. If
+ out of memory, return NULL. */
+float *
+gh_scm2floats (SCM obj, float *m)
+{
+ long i, n;
+ SCM val;
+ if (SCM_IMP (obj))
+ scm_wrong_type_arg (0, 0, obj);
+ switch (SCM_TYP7 (obj))
+ {
+ case scm_tc7_vector:
+ case scm_tc7_wvect:
+ n = SCM_VECTOR_LENGTH (obj);
+ for (i = 0; i < n; ++i)
+ {
+ val = SCM_VELTS (obj)[i];
+ if (!SCM_INUMP (val)
+ && !(SCM_BIGP (val) || SCM_REALP (val)))
+ scm_wrong_type_arg (0, 0, val);
+ }
+ if (m == 0)
+ m = (float *) malloc (n * sizeof (float));
+ if (m == NULL)
+ return NULL;
+ for (i = 0; i < n; ++i)
+ {
+ val = SCM_VELTS (obj)[i];
+ if (SCM_INUMP (val))
+ m[i] = SCM_INUM (val);
+ else if (SCM_BIGP (val))
+ m[i] = scm_num2long (val, 0, NULL);
+ else
+ m[i] = SCM_REAL_VALUE (val);
+ }
+ break;
+#ifdef HAVE_ARRAYS
+ case scm_tc7_fvect:
+ n = SCM_UVECTOR_LENGTH (obj);
+ if (m == 0)
+ m = (float *) malloc (n * sizeof (float));
+ if (m == NULL)
+ return NULL;
+ memcpy (m, (float *) SCM_VELTS (obj), n * sizeof (float));
+ break;
+
+ case scm_tc7_dvect:
+ n = SCM_UVECTOR_LENGTH (obj);
+ if (m == 0)
+ m = (float*) malloc (n * sizeof (float));
+ if (m == NULL)
+ return NULL;
+ for (i = 0; i < n; ++i)
+ m[i] = ((double *) SCM_VELTS (obj))[i];
+ break;
+#endif
+ default:
+ scm_wrong_type_arg (0, 0, obj);
+ }
+ return m;
+}
+
+/* Convert a vector, weak vector or uniform vector into an array of
+ doubles. If result array in arg 2 is NULL, malloc a new one. If
+ out of memory, return NULL. */
+double *
+gh_scm2doubles (SCM obj, double *m)
{
- return SCM_ICHR (obj);
+ long i, n;
+ SCM val;
+ if (SCM_IMP (obj))
+ scm_wrong_type_arg (0, 0, obj);
+ switch (SCM_TYP7 (obj))
+ {
+ case scm_tc7_vector:
+ case scm_tc7_wvect:
+ n = SCM_VECTOR_LENGTH (obj);
+ for (i = 0; i < n; ++i)
+ {
+ val = SCM_VELTS (obj)[i];
+ if (!SCM_INUMP (val)
+ && !(SCM_BIGP (val) || SCM_REALP (val)))
+ scm_wrong_type_arg (0, 0, val);
+ }
+ if (m == 0)
+ m = (double *) malloc (n * sizeof (double));
+ if (m == NULL)
+ return NULL;
+ for (i = 0; i < n; ++i)
+ {
+ val = SCM_VELTS (obj)[i];
+ if (SCM_INUMP (val))
+ m[i] = SCM_INUM (val);
+ else if (SCM_BIGP (val))
+ m[i] = scm_num2long (val, 0, NULL);
+ else
+ m[i] = SCM_REAL_VALUE (val);
+ }
+ break;
+#ifdef HAVE_ARRAYS
+ case scm_tc7_fvect:
+ n = SCM_UVECTOR_LENGTH (obj);
+ if (m == 0)
+ m = (double *) malloc (n * sizeof (double));
+ if (m == NULL)
+ return NULL;
+ for (i = 0; i < n; ++i)
+ m[i] = ((float *) SCM_VELTS (obj))[i];
+ break;
+
+ case scm_tc7_dvect:
+ n = SCM_UVECTOR_LENGTH (obj);
+ if (m == 0)
+ m = (double*) malloc (n * sizeof (double));
+ if (m == NULL)
+ return NULL;
+ memcpy (m, SCM_VELTS (obj), n * sizeof (double));
+ break;
+#endif
+ default:
+ scm_wrong_type_arg (0, 0, obj);
+ }
+ return m;
}
/* string conversions between C and Scheme */
non-null, set *lenp to the string's length.
This function uses malloc to obtain storage for the copy; the
- caller is responsible for freeing it.
+ caller is responsible for freeing it. If out of memory, NULL is
+ returned.
Note that Scheme strings may contain arbitrary data, including null
characters. This means that null termination is not a reliable way
function always copies the complete contents of STR, and sets
*LEN_P to the true length of the string (when LEN_P is non-null). */
char *
-gh_scm2newstr (SCM str, int *lenp)
+gh_scm2newstr (SCM str, size_t *lenp)
{
char *ret_str;
- int len;
-
- SCM_ASSERT (SCM_NIMP (str) && SCM_STRINGP (str), str, SCM_ARG3,
- "gh_scm2newstr");
+ size_t len;
- /* protect str from GC while we copy off its data */
- scm_protect_object (str);
+ SCM_ASSERT (SCM_STRINGP (str), str, SCM_ARG3, "gh_scm2newstr");
- len = SCM_LENGTH (str);
+ len = SCM_STRING_LENGTH (str);
- ret_str = (char *) scm_must_malloc ((len + 1) * sizeof (char),
- "gh_scm2newstr");
+ ret_str = (char *) malloc ((len + 1) * sizeof (char));
+ if (ret_str == NULL)
+ return NULL;
/* so we copy tmp_str to ret_str, which is what we will allocate */
- memcpy (ret_str, SCM_CHARS (str), len);
+ memcpy (ret_str, SCM_STRING_CHARS (str), len);
+ scm_remember_upto_here_1 (str);
/* now make sure we null-terminate it */
ret_str[len] = '\0';
- scm_unprotect_object (str);
-
if (lenp != NULL)
{
*lenp = len;
region to fit the string. If truncation occurs, the corresponding
area of DST is left unchanged. */
void
-gh_get_substr (SCM src, char *dst, int start, int len)
+gh_get_substr (SCM src, char *dst, long start, size_t len)
{
- int src_len, effective_length;
- SCM_ASSERT (SCM_NIMP (src) && SCM_STRINGP (src), src, SCM_ARG3,
- "gh_get_substr");
+ size_t src_len, effective_length;
+ SCM_ASSERT (SCM_STRINGP (src), src, SCM_ARG3, "gh_get_substr");
- scm_protect_object (src);
- src_len = SCM_LENGTH (src);
+ src_len = SCM_STRING_LENGTH (src);
effective_length = (len < src_len) ? len : src_len;
- memcpy (dst + start, SCM_CHARS (src), effective_length * sizeof (char));
+ memcpy (dst + start, SCM_STRING_CHARS (src), effective_length * sizeof (char));
/* FIXME: must signal an error if len > src_len */
- scm_unprotect_object (src);
+ scm_remember_upto_here_1 (src);
}
string's length.
This function uses malloc to obtain storage for the copy; the
- caller is responsible for freeing it. */
+ caller is responsible for freeing it. If out of memory, NULL is
+ returned.*/
char *
-gh_symbol2newstr (SCM sym, int *lenp)
+gh_symbol2newstr (SCM sym, size_t *lenp)
{
char *ret_str;
- int len;
-
- SCM_ASSERT (SCM_NIMP (sym) && SCM_SYMBOLP (sym), sym, SCM_ARG3,
- "gh_scm2newsymbol");
+ size_t len;
- /* protect str from GC while we copy off its data */
- scm_protect_object (sym);
+ SCM_ASSERT (SCM_SYMBOLP (sym), sym, SCM_ARG3, "gh_scm2newsymbol");
- len = SCM_LENGTH (sym);
+ len = SCM_SYMBOL_LENGTH (sym);
- ret_str = (char *) scm_must_malloc ((len + 1) * sizeof (char),
- "gh_symbol2newstr");
- /* so we copy tmp_str to ret_str, which is what we will allocate */
- memcpy (ret_str, SCM_CHARS (sym), len);
+ ret_str = (char *) malloc ((len + 1) * sizeof (char));
+ if (ret_str == NULL)
+ return NULL;
+ /* so we copy sym to ret_str, which is what we will allocate */
+ memcpy (ret_str, SCM_SYMBOL_CHARS (sym), len);
+ scm_remember_upto_here_1 (sym);
/* now make sure we null-terminate it */
ret_str[len] = '\0';
- scm_unprotect_object (sym);
-
if (lenp != NULL)
{
*lenp = len;
SCM
gh_make_vector (SCM len, SCM fill)
{
- /* scm_make_vector() takes a third boolean argument which should be
- set to SCM_BOOL_T when you are dealing with multi-dimensional
- arrays; gh_make_vector() does not do multi-dimensional arrays */
- return scm_make_vector(len, fill, SCM_BOOL_F);
+ return scm_make_vector (len, fill);
}
/* set the given element of the given vector to the given value */
unsigned long
gh_vector_length (SCM v)
{
- return gh_scm2ulong (scm_vector_length (v));
+ return (unsigned long) SCM_VECTOR_LENGTH (v);
}
-
+#ifdef HAVE_ARRAYS
/* uniform vector support */
/* returns the length as a C unsigned long integer */
unsigned long
gh_uniform_vector_length (SCM v)
{
- return gh_scm2ulong (scm_uniform_vector_length (v));
+ return (unsigned long) SCM_UVECTOR_LENGTH (v);
}
/* gets the given element from a uniform vector; ilist is a list (or
/* sets an individual element in a uniform vector */
/* SCM */
/* gh_list_to_uniform_array ( */
-
+#endif
/* Data lookups between C and Scheme
`vec' argument.
The return value is the Scheme object to which SNAME is bound, or
- SCM_UNDEFINED if SNAME is not bound in the given context. [FIXME:
- should this be SCM_UNSPECIFIED? Can a symbol ever legitimately be
- bound to SCM_UNDEFINED or SCM_UNSPECIFIED? What is the difference?
- -twp] */
+ SCM_UNDEFINED if SNAME is not bound in the given context.
+ */
SCM
-gh_lookup (char *sname)
+gh_lookup (const char *sname)
{
- return gh_module_lookup (SCM_BOOL_F, sname);
+ return gh_module_lookup (scm_current_module (), sname);
}
+
SCM
-gh_module_lookup (SCM vec, char *sname)
+gh_module_lookup (SCM module, const char *sname)
+#define FUNC_NAME "gh_module_lookup"
{
- SCM sym = gh_symbol2scm (sname);
- if ((scm_symbol_bound_p (vec, sym)) == SCM_BOOL_T)
- return scm_symbol_binding (vec, sym);
+ SCM sym, var;
+
+ SCM_VALIDATE_MODULE (SCM_ARG1, module);
+
+ sym = scm_str2symbol (sname);
+ var = scm_sym2var (sym, scm_module_lookup_closure (module), SCM_BOOL_F);
+ if (var != SCM_BOOL_F)
+ return SCM_VARIABLE_REF (var);
else
return SCM_UNDEFINED;
}
+#undef FUNC_NAME
+
+/*
+ Local Variables:
+ c-file-style: "gnu"
+ End:
+*/
HCoop / bpt / guile.git / blobdiff