[bpt/guile.git] / libguile / vectors.c

/*	Copyright (C) 1995, 1996, 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)
 * any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this software; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307 USA
 *
 * As a special exception, the Free Software Foundation gives permission
 * for additional uses of the text contained in its release of GUILE.
 *
 * The exception is that, if you link the GUILE library with other files
 * to produce an executable, this does not by itself cause the
 * resulting executable to be covered by the GNU General Public License.
 * Your use of that executable is in no way restricted on account of
 * linking the GUILE library code into it.
 *
 * This exception does not however invalidate any other reasons why
 * the executable file might be covered by the GNU General Public License.
 *
 * This exception applies only to the code released by the
 * Free Software Foundation under the name GUILE.  If you copy
 * code from other Free Software Foundation releases into a copy of
 * GUILE, as the General Public License permits, the exception does
 * not apply to the code that you add in this way.  To avoid misleading
 * anyone as to the status of such modified files, you must delete
 * this exception notice from them.
 *
 * If you write modifications of your own for GUILE, it is your choice
 * whether to permit this exception to apply to your modifications.
 * If you do not wish that, delete this exception notice.  */

/* Software engineering face-lift by Greg J. Badros, 11-Dec-1999,
   gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */

\f

#include <stdio.h>
#include "libguile/_scm.h"
#include "libguile/eq.h"
#include "libguile/root.h"
#include "libguile/strings.h"

#include "libguile/validate.h"
#include "libguile/vectors.h"
#include "libguile/unif.h"
\f

/* 
 * This complicates things too much if allowed on any array.
 * C code can safely call it on arrays known to be used in a single
 * threaded manner.
 *
 * SCM_REGISTER_PROC(s_vector_set_length_x, "vector-set-length!", 2, 0, 0, scm_vector_set_length_x); 
 */
static char s_vector_set_length_x[] = "vector-set-length!";


SCM 
scm_vector_set_length_x (SCM vect, SCM len)
{
  long l;
  scm_sizet siz;
  scm_sizet sz;

  l = SCM_INUM (len);
  SCM_ASRTGO (SCM_NIMP (vect), badarg1);

#ifdef HAVE_ARRAYS
  if (SCM_TYP7 (vect) == scm_tc7_bvect)
    {
      l = (l + SCM_LONG_BIT - 1) / SCM_LONG_BIT;
    }
  sz = scm_uniform_element_size (vect);
  if (sz == 0)
#endif
  switch (SCM_TYP7 (vect))
    {
    default:
    badarg1: scm_wta (vect, (char *) SCM_ARG1, s_vector_set_length_x);
    case scm_tc7_string:
      SCM_ASRTGO (!SCM_EQ_P (vect, scm_nullstr), badarg1);
      sz = sizeof (char);
      l++;
      break;
    case scm_tc7_vector:
    case scm_tc7_wvect:
      SCM_ASRTGO (!SCM_EQ_P (vect, scm_nullvect), badarg1);
      sz = sizeof (SCM);
      break;
    }
  SCM_ASSERT (SCM_INUMP (len), len, SCM_ARG2, s_vector_set_length_x);
  if (!l)
    l = 1L;
  siz = l * sz;
  if (siz != l * sz)
    scm_memory_error (s_vector_set_length_x);
  SCM_REDEFER_INTS;
  SCM_SETCHARS (vect,
	    ((char *)
	     scm_must_realloc (SCM_CHARS (vect),
			       (long) SCM_LENGTH (vect) * sz,
			       (long) siz,
			       s_vector_set_length_x)));
  if (SCM_VECTORP (vect))
    {
      sz = SCM_LENGTH (vect);
      while (l > sz)
	SCM_VELTS (vect)[--l] = SCM_UNSPECIFIED;
    }
  else if (SCM_STRINGP (vect))
    SCM_CHARS (vect)[l - 1] = 0;
  SCM_SETLENGTH (vect, SCM_INUM (len), SCM_TYP7 (vect));
  SCM_REALLOW_INTS;
  return vect;
}

SCM_DEFINE (scm_vector_p, "vector?", 1, 0, 0, 
	    (SCM obj),
	    "Returns @t{#t} if @var{obj} is a vector, otherwise returns @t{#f}. (r5rs)")
#define FUNC_NAME s_scm_vector_p
{
  if (SCM_IMP (obj))
    return SCM_BOOL_F;
  return SCM_BOOL (SCM_VECTORP (obj));
}
#undef FUNC_NAME

SCM_GPROC (s_vector_length, "vector-length", 1, 0, 0, scm_vector_length, g_vector_length);
/* Returns the number of elements in @var{vector} as an exact integer. (r5rs) */
SCM
scm_vector_length (SCM v)
{
  SCM_GASSERT1 (SCM_VECTORP(v),
		g_vector_length, v, SCM_ARG1, s_vector_length);
  return SCM_MAKINUM (SCM_LENGTH (v));
}

SCM_REGISTER_PROC (s_list_to_vector, "list->vector", 1, 0, 0, scm_vector);
/*
	    "@samp{List->vector} returns a newly\n"
	    "created vector initialized to the elements of the list @var{list}.\n\n"
	    "@format\n"
	    "@t{(vector->list '#(dah dah didah))\n"
	    "=>  (dah dah didah)\n"
	    "list->vector '(dididit dah))\n"
	    "=>  #(dididit dah)\n"
	    "}\n"
	    "@end format")
*/
SCM_DEFINE (scm_vector, "vector", 0, 0, 1, 
	    (SCM l),
	    "Returns a newly allocated vector whose elements contain the given\n"
	    "arguments.  Analogous to @samp{list}. (r5rs)\n\n"
	    "@format\n"
	    "@t{(vector 'a 'b 'c)                      ==>  #(a b c) }\n"
	    "@end format")
#define FUNC_NAME s_scm_vector
{
  SCM res;
  register SCM *data;
  int i;
  SCM_VALIDATE_LIST_COPYLEN (1,l,i);
  res = scm_make_vector (SCM_MAKINUM (i), SCM_UNSPECIFIED);
  data = SCM_VELTS (res);
  for(; i && SCM_NIMP(l); --i, l = SCM_CDR (l))
    *data++ = SCM_CAR (l);
  return res;
}
#undef FUNC_NAME

SCM_GPROC (s_vector_ref, "vector-ref", 2, 0, 0, scm_vector_ref, g_vector_ref);

/*
           "@var{k} must be a valid index of @var{vector}.\n"
	   "@samp{Vector-ref} returns the contents of element @var{k} of\n"
	   "@var{vector}.\n\n"
	   "@format\n"
	   "@t{(vector-ref '#(1 1 2 3 5 8 13 21)\n"
	   "                5)\n"
	   "        ==>  8\n"
	   "(vector-ref '#(1 1 2 3 5 8 13 21)\n"
	   "    (let ((i (round (* 2 (acos -1)))))\n"
	   "      (if (inexact? i)\n"
	   "        (inexact->exact i)\n"
	   "           i))) \n"
	   "     ==> 13\n"
	   "}\n"
	   "@end format"
*/

SCM
scm_vector_ref (SCM v, SCM k)
{
  SCM_GASSERT2 (SCM_VECTORP (v),
		g_vector_ref, v, k, SCM_ARG1, s_vector_ref);
  SCM_GASSERT2 (SCM_INUMP (k),
		g_vector_ref, v, k, SCM_ARG2, s_vector_ref);
  SCM_ASSERT (SCM_INUM (k) < SCM_LENGTH (v) && SCM_INUM (k) >= 0,
              k, SCM_OUTOFRANGE, s_vector_ref);
  return SCM_VELTS (v)[(long) SCM_INUM (k)];
}

SCM_GPROC (s_vector_set_x, "vector-set!", 3, 0, 0, scm_vector_set_x, g_vector_set_x);

/* (r5rs)
@var{k} must be a valid index of @var{vector}.
@samp{Vector-set!} stores @var{obj} in element @var{k} of @var{vector}.
The value returned by @samp{vector-set!} is unspecified.  
@c  <!>


@format
@t{(let ((vec (vector 0 '(2 2 2 2) "Anna")))
  (vector-set! vec 1 '("Sue" "Sue"))
  vec)      
          ==>  #(0 ("Sue" "Sue") "Anna")

(vector-set! '#(0 1 2) 1 "doe")  
          ==>  @emph{error}  ; constant vector
}
@end format
*/

SCM
scm_vector_set_x (SCM v, SCM k, SCM obj)
{
  SCM_GASSERTn (SCM_VECTORP (v),
		g_vector_set_x, SCM_LIST3 (v, k, obj),
		SCM_ARG1, s_vector_set_x);
  SCM_GASSERTn (SCM_INUMP (k),
		g_vector_set_x, SCM_LIST3 (v, k, obj),
		SCM_ARG2, s_vector_set_x);
  SCM_ASSERT ((SCM_INUM (k) < SCM_LENGTH (v)) && (SCM_INUM (k) >= 0),
	      k, SCM_OUTOFRANGE, s_vector_set_x);
  SCM_VELTS(v)[(long) SCM_INUM(k)] = obj;
  return SCM_UNSPECIFIED;
}


SCM_DEFINE (scm_make_vector, "make-vector", 1, 1, 0,
            (SCM k, SCM fill),
	    "Returns a newly allocated vector of @var{k} elements.  If a second\n"
	    "argument is given, then each element is initialized to @var{fill}.\n"
	    "Otherwise the initial contents of each element is unspecified. (r5rs)")
#define FUNC_NAME s_scm_make_vector
{
  SCM v;
  register long i;
  register long j;
  register SCM *velts;

  SCM_VALIDATE_INUM_MIN (1,k,0);
  if (SCM_UNBNDP(fill))
    fill = SCM_UNSPECIFIED;
  i = SCM_INUM(k);
  SCM_NEWCELL(v);
  SCM_DEFER_INTS;
  SCM_SETCHARS(v, scm_must_malloc(i?(long)(i*sizeof(SCM)):1L, FUNC_NAME));
  SCM_SETLENGTH(v, i, scm_tc7_vector);
  velts = SCM_VELTS(v);
  j = 0;
  while(--i >= j) (velts)[i] = fill;
  SCM_ALLOW_INTS;
  return v;
}
#undef FUNC_NAME


SCM_DEFINE (scm_vector_to_list, "vector->list", 1, 0, 0, 
           (SCM v),
	    "@samp{Vector->list} returns a newly allocated list of the objects contained\n"
	    "in the elements of @var{vector}.  (r5rs)\n\n"
	    "@format\n"
	    "@t{(vector->list '#(dah dah didah))\n"
	    "=>  (dah dah didah)\n"
	    "list->vector '(dididit dah))\n"
	    "=>  #(dididit dah)\n"
	    "}\n"
	    "@end format")
#define FUNC_NAME s_scm_vector_to_list
{
  SCM res = SCM_EOL;
  long i;
  SCM *data;
  SCM_VALIDATE_VECTOR (1,v);
  data = SCM_VELTS(v);
  for(i = SCM_LENGTH(v)-1;i >= 0;i--) res = scm_cons(data[i], res);
  return res;
}
#undef FUNC_NAME


SCM_DEFINE (scm_vector_fill_x, "vector-fill!", 2, 0, 0,
            (SCM v, SCM fill_x),
	    "Stores @var{fill} in every element of @var{vector}.\n"
	    "The value returned by @samp{vector-fill!} is unspecified. (r5rs)")
#define FUNC_NAME s_scm_vector_fill_x
{
  register long i;
  register SCM *data;
  SCM_VALIDATE_VECTOR (1,v);
  data = SCM_VELTS(v);
  for(i = SCM_LENGTH(v) - 1; i >= 0; i--)
    data[i] = fill_x;
  return SCM_UNSPECIFIED;
}
#undef FUNC_NAME


SCM
scm_vector_equal_p(SCM x, SCM y)
{
  long i;
  for(i = SCM_LENGTH(x)-1;i >= 0;i--)
    if (SCM_FALSEP(scm_equal_p(SCM_VELTS(x)[i], SCM_VELTS(y)[i])))
      return SCM_BOOL_F;
  return SCM_BOOL_T;
}


SCM_DEFINE (scm_vector_move_left_x, "vector-move-left!", 5, 0, 0, 
            (SCM vec1, SCM start1, SCM end1, SCM vec2, SCM start2),
	    "Vector version of @code{substring-move-left!}.")
#define FUNC_NAME s_scm_vector_move_left_x
{
  long i;
  long j;
  long e;
  
  SCM_VALIDATE_VECTOR (1,vec1);
  SCM_VALIDATE_INUM_COPY (2,start1,i);
  SCM_VALIDATE_INUM_COPY (3,end1,e);
  SCM_VALIDATE_VECTOR (4,vec2);
  SCM_VALIDATE_INUM_COPY (5,start2,j);
  SCM_ASSERT (i <= SCM_LENGTH (vec1) && i >= 0, start1, SCM_OUTOFRANGE, FUNC_NAME);
  SCM_ASSERT (j <= SCM_LENGTH (vec2) && j >= 0, start2, SCM_OUTOFRANGE, FUNC_NAME);
  SCM_ASSERT (e <= SCM_LENGTH (vec1) && e >= 0, end1, SCM_OUTOFRANGE, FUNC_NAME);
  SCM_ASSERT (e-i+j <= SCM_LENGTH (vec2), start2, SCM_OUTOFRANGE, FUNC_NAME);
  while (i<e) SCM_VELTS (vec2)[j++] = SCM_VELTS (vec1)[i++];
  return SCM_UNSPECIFIED;
}
#undef FUNC_NAME

SCM_DEFINE (scm_vector_move_right_x, "vector-move-right!", 5, 0, 0, 
            (SCM vec1, SCM start1, SCM end1, SCM vec2, SCM start2),
	    "Vector version of @code{substring-move-right!}.")
#define FUNC_NAME s_scm_vector_move_right_x
{
  long i;
  long j;
  long e;

  SCM_VALIDATE_VECTOR (1,vec1);
  SCM_VALIDATE_INUM_COPY (2,start1,i);
  SCM_VALIDATE_INUM_COPY (3,end1,e);
  SCM_VALIDATE_VECTOR (4,vec2);
  SCM_VALIDATE_INUM_COPY (5,start2,j);
  SCM_ASSERT (i <= SCM_LENGTH (vec1) && i >= 0, start1, SCM_OUTOFRANGE, FUNC_NAME);
  SCM_ASSERT (j <= SCM_LENGTH (vec2) && j >= 0, start2, SCM_OUTOFRANGE, FUNC_NAME);
  SCM_ASSERT (e <= SCM_LENGTH (vec1) && e >= 0, end1, SCM_OUTOFRANGE, FUNC_NAME);
  j = e - i + j;
  SCM_ASSERT (j <= SCM_LENGTH (vec2), start2, SCM_OUTOFRANGE, FUNC_NAME);
  while (i < e)
    SCM_VELTS (vec2)[--j] = SCM_VELTS (vec1)[--e];
  return SCM_UNSPECIFIED;
}
#undef FUNC_NAME


void
scm_init_vectors ()
{
#include "libguile/vectors.x"
  /*
    scm_make_subr (s_resizuve, scm_tc7_subr_2, scm_vector_set_length_x); */
}


/*
  Local Variables:
  c-file-style: "gnu"
  End:
*/
Commit	Line	Data
60c497a3	1	/* Copyright (C) 1995, 1996, 1998, 1999, 2000 Free Software Foundation, Inc.
0f2d19dd JB	2	*
	3	* This program is free software; you can redistribute it and/or modify
	4	* it under the terms of the GNU General Public License as published by
	5	* the Free Software Foundation; either version 2, or (at your option)
	6	* any later version.
	7	*
	8	* This program is distributed in the hope that it will be useful,
	9	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	10	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	11	* GNU General Public License for more details.
	12	*
	13	* You should have received a copy of the GNU General Public License
	14	* along with this software; see the file COPYING. If not, write to
82892bed JB	15	* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
82892bed JB	16	* Boston, MA 02111-1307 USA
0f2d19dd JB	17	*
	18	* As a special exception, the Free Software Foundation gives permission
	19	* for additional uses of the text contained in its release of GUILE.
	20	*
	21	* The exception is that, if you link the GUILE library with other files
	22	* to produce an executable, this does not by itself cause the
	23	* resulting executable to be covered by the GNU General Public License.
	24	* Your use of that executable is in no way restricted on account of
	25	* linking the GUILE library code into it.
	26	*
	27	* This exception does not however invalidate any other reasons why
	28	* the executable file might be covered by the GNU General Public License.
	29	*
	30	* This exception applies only to the code released by the
	31	* Free Software Foundation under the name GUILE. If you copy
	32	* code from other Free Software Foundation releases into a copy of
	33	* GUILE, as the General Public License permits, the exception does
	34	* not apply to the code that you add in this way. To avoid misleading
	35	* anyone as to the status of such modified files, you must delete
	36	* this exception notice from them.
	37	*
	38	* If you write modifications of your own for GUILE, it is your choice
	39	* whether to permit this exception to apply to your modifications.
82892bed	40	* If you do not wish that, delete this exception notice. */
1bbd0b84 GB	41
	42	/* Software engineering face-lift by Greg J. Badros, 11-Dec-1999,
	43	gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */
	44
0f2d19dd JB	45	\f
	46
	47	#include <stdio.h>
a0599745 MD	48	#include "libguile/_scm.h"
	49	#include "libguile/eq.h"
	50	#include "libguile/root.h"
	51	#include "libguile/strings.h"
	52
	53	#include "libguile/validate.h"
	54	#include "libguile/vectors.h"
	55	#include "libguile/unif.h"
0f2d19dd JB	56	\f
0f2d19dd JB	57
afe5177e GH	58	/*
	59	* This complicates things too much if allowed on any array.
	60	* C code can safely call it on arrays known to be used in a single
	61	* threaded manner.
	62	*
1bbd0b84	63	* SCM_REGISTER_PROC(s_vector_set_length_x, "vector-set-length!", 2, 0, 0, scm_vector_set_length_x);
afe5177e GH	64	*/
	65	static char s_vector_set_length_x[] = "vector-set-length!";
	66
	67
	68	SCM
1bbd0b84	69	scm_vector_set_length_x (SCM vect, SCM len)
afe5177e GH	70	{
	71	long l;
	72	scm_sizet siz;
	73	scm_sizet sz;
	74
	75	l = SCM_INUM (len);
	76	SCM_ASRTGO (SCM_NIMP (vect), badarg1);
	77
	78	#ifdef HAVE_ARRAYS
	79	if (SCM_TYP7 (vect) == scm_tc7_bvect)
	80	{
	81	l = (l + SCM_LONG_BIT - 1) / SCM_LONG_BIT;
	82	}
	83	sz = scm_uniform_element_size (vect);
	84	if (sz == 0)
	85	#endif
	86	switch (SCM_TYP7 (vect))
	87	{
	88	default:
	89	badarg1: scm_wta (vect, (char *) SCM_ARG1, s_vector_set_length_x);
	90	case scm_tc7_string:
4260a7fc	91	SCM_ASRTGO (!SCM_EQ_P (vect, scm_nullstr), badarg1);
afe5177e GH	92	sz = sizeof (char);
	93	l++;
	94	break;
	95	case scm_tc7_vector:
	96	case scm_tc7_wvect:
4260a7fc	97	SCM_ASRTGO (!SCM_EQ_P (vect, scm_nullvect), badarg1);
afe5177e GH	98	sz = sizeof (SCM);
	99	break;
	100	}
	101	SCM_ASSERT (SCM_INUMP (len), len, SCM_ARG2, s_vector_set_length_x);
	102	if (!l)
	103	l = 1L;
	104	siz = l * sz;
	105	if (siz != l * sz)
2500356c	106	scm_memory_error (s_vector_set_length_x);
afe5177e GH	107	SCM_REDEFER_INTS;
	108	SCM_SETCHARS (vect,
	109	((char *)
	110	scm_must_realloc (SCM_CHARS (vect),
	111	(long) SCM_LENGTH (vect) * sz,
	112	(long) siz,
	113	s_vector_set_length_x)));
	114	if (SCM_VECTORP (vect))
	115	{
	116	sz = SCM_LENGTH (vect);
	117	while (l > sz)
	118	SCM_VELTS (vect)[--l] = SCM_UNSPECIFIED;
	119	}
	120	else if (SCM_STRINGP (vect))
	121	SCM_CHARS (vect)[l - 1] = 0;
	122	SCM_SETLENGTH (vect, SCM_INUM (len), SCM_TYP7 (vect));
	123	SCM_REALLOW_INTS;
	124	return vect;
	125	}
0f2d19dd	126
a1ec6916	127	SCM_DEFINE (scm_vector_p, "vector?", 1, 0, 0,
5ffe9968 GB	128	(SCM obj),
5ffe9968 GB	129	"Returns @t{#t} if @var{obj} is a vector, otherwise returns @t{#f}. (r5rs)")
1bbd0b84	130	#define FUNC_NAME s_scm_vector_p
0f2d19dd	131	{
5ffe9968	132	if (SCM_IMP (obj))
f172c0b7	133	return SCM_BOOL_F;
5ffe9968	134	return SCM_BOOL (SCM_VECTORP (obj));
0f2d19dd	135	}
1bbd0b84	136	#undef FUNC_NAME
0f2d19dd	137
f172c0b7	138	SCM_GPROC (s_vector_length, "vector-length", 1, 0, 0, scm_vector_length, g_vector_length);
5ffe9968	139	/* Returns the number of elements in @var{vector} as an exact integer. (r5rs) */
0f2d19dd	140	SCM
f172c0b7	141	scm_vector_length (SCM v)
0f2d19dd	142	{
f172c0b7 MD	143	SCM_GASSERT1 (SCM_VECTORP(v),
	144	g_vector_length, v, SCM_ARG1, s_vector_length);
	145	return SCM_MAKINUM (SCM_LENGTH (v));
0f2d19dd JB	146	}
0f2d19dd JB	147
f172c0b7	148	SCM_REGISTER_PROC (s_list_to_vector, "list->vector", 1, 0, 0, scm_vector);
5ffe9968 GB	149	/*
	150	"@samp{List->vector} returns a newly\n"
	151	"created vector initialized to the elements of the list @var{list}.\n\n"
	152	"@format\n"
	153	"@t{(vector->list '#(dah dah didah))\n"
	154	"=> (dah dah didah)\n"
	155	"list->vector '(dididit dah))\n"
	156	"=> #(dididit dah)\n"
	157	"}\n"
	158	"@end format")
	159	*/
a1ec6916	160	SCM_DEFINE (scm_vector, "vector", 0, 0, 1,
f172c0b7	161	(SCM l),
5ffe9968 GB	162	"Returns a newly allocated vector whose elements contain the given\n"
	163	"arguments. Analogous to @samp{list}. (r5rs)\n\n"
	164	"@format\n"
	165	"@t{(vector 'a 'b 'c) ==> #(a b c) }\n"
	166	"@end format")
1bbd0b84	167	#define FUNC_NAME s_scm_vector
0f2d19dd JB	168	{
	169	SCM res;
	170	register SCM *data;
1bbd0b84	171	int i;
f172c0b7 MD	172	SCM_VALIDATE_LIST_COPYLEN (1,l,i);
	173	res = scm_make_vector (SCM_MAKINUM (i), SCM_UNSPECIFIED);
	174	data = SCM_VELTS (res);
	175	for(; i && SCM_NIMP(l); --i, l = SCM_CDR (l))
	176	*data++ = SCM_CAR (l);
0f2d19dd JB	177	return res;
0f2d19dd JB	178	}
1bbd0b84	179	#undef FUNC_NAME
0f2d19dd	180
f172c0b7	181	SCM_GPROC (s_vector_ref, "vector-ref", 2, 0, 0, scm_vector_ref, g_vector_ref);
1cc91f1b	182
5ffe9968 GB	183	/*
	184	"@var{k} must be a valid index of @var{vector}.\n"
	185	"@samp{Vector-ref} returns the contents of element @var{k} of\n"
	186	"@var{vector}.\n\n"
	187	"@format\n"
	188	"@t{(vector-ref '#(1 1 2 3 5 8 13 21)\n"
	189	" 5)\n"
	190	" ==> 8\n"
	191	"(vector-ref '#(1 1 2 3 5 8 13 21)\n"
	192	" (let ((i (round (* 2 (acos -1)))))\n"
	193	" (if (inexact? i)\n"
	194	" (inexact->exact i)\n"
	195	" i))) \n"
	196	" ==> 13\n"
	197	"}\n"
	198	"@end format"
	199	*/
	200
0f2d19dd	201	SCM
ea633082	202	scm_vector_ref (SCM v, SCM k)
0f2d19dd	203	{
0c95b57d	204	SCM_GASSERT2 (SCM_VECTORP (v),
9eb8500a MD	205	g_vector_ref, v, k, SCM_ARG1, s_vector_ref);
	206	SCM_GASSERT2 (SCM_INUMP (k),
	207	g_vector_ref, v, k, SCM_ARG2, s_vector_ref);
ea633082 MD	208	SCM_ASSERT (SCM_INUM (k) < SCM_LENGTH (v) && SCM_INUM (k) >= 0,
	209	k, SCM_OUTOFRANGE, s_vector_ref);
	210	return SCM_VELTS (v)[(long) SCM_INUM (k)];
0f2d19dd JB	211	}
0f2d19dd JB	212
f172c0b7	213	SCM_GPROC (s_vector_set_x, "vector-set!", 3, 0, 0, scm_vector_set_x, g_vector_set_x);
1cc91f1b	214
5ffe9968 GB	215	/* (r5rs)
	216	@var{k} must be a valid index of @var{vector}.
	217	@samp{Vector-set!} stores @var{obj} in element @var{k} of @var{vector}.
	218	The value returned by @samp{vector-set!} is unspecified.
	219	@c <!>
	220
	221
	222	@format
	223	@t{(let ((vec (vector 0 '(2 2 2 2) "Anna")))
	224	(vector-set! vec 1 '("Sue" "Sue"))
	225	vec)
	226	==> #(0 ("Sue" "Sue") "Anna")
	227
	228	(vector-set! '#(0 1 2) 1 "doe")
	229	==> @emph{error} ; constant vector
	230	}
	231	@end format
	232	*/
	233
0f2d19dd	234	SCM
f172c0b7	235	scm_vector_set_x (SCM v, SCM k, SCM obj)
0f2d19dd	236	{
f172c0b7	237	SCM_GASSERTn (SCM_VECTORP (v),
9eb8500a MD	238	g_vector_set_x, SCM_LIST3 (v, k, obj),
9eb8500a MD	239	SCM_ARG1, s_vector_set_x);
f172c0b7	240	SCM_GASSERTn (SCM_INUMP (k),
9eb8500a MD	241	g_vector_set_x, SCM_LIST3 (v, k, obj),
9eb8500a MD	242	SCM_ARG2, s_vector_set_x);
f172c0b7	243	SCM_ASSERT ((SCM_INUM (k) < SCM_LENGTH (v)) && (SCM_INUM (k) >= 0),
9eb8500a	244	k, SCM_OUTOFRANGE, s_vector_set_x);
f172c0b7	245	SCM_VELTS(v)[(long) SCM_INUM(k)] = obj;
60c497a3	246	return SCM_UNSPECIFIED;
0f2d19dd JB	247	}
	248
	249
a1ec6916	250	SCM_DEFINE (scm_make_vector, "make-vector", 1, 1, 0,
1bbd0b84	251	(SCM k, SCM fill),
5ffe9968 GB	252	"Returns a newly allocated vector of @var{k} elements. If a second\n"
	253	"argument is given, then each element is initialized to @var{fill}.\n"
	254	"Otherwise the initial contents of each element is unspecified. (r5rs)")
1bbd0b84	255	#define FUNC_NAME s_scm_make_vector
0f2d19dd JB	256	{
0f2d19dd JB	257	SCM v;
0f2d19dd JB	258	register long i;
	259	register long j;
	260	register SCM *velts;
	261
3b3b36dd	262	SCM_VALIDATE_INUM_MIN (1,k,0);
0f2d19dd	263	if (SCM_UNBNDP(fill))
d60cebe2	264	fill = SCM_UNSPECIFIED;
0f2d19dd JB	265	i = SCM_INUM(k);
	266	SCM_NEWCELL(v);
	267	SCM_DEFER_INTS;
1bbd0b84	268	SCM_SETCHARS(v, scm_must_malloc(i?(long)(i*sizeof(SCM)):1L, FUNC_NAME));
0f2d19dd JB	269	SCM_SETLENGTH(v, i, scm_tc7_vector);
	270	velts = SCM_VELTS(v);
	271	j = 0;
0f2d19dd JB	272	while(--i >= j) (velts)[i] = fill;
	273	SCM_ALLOW_INTS;
	274	return v;
	275	}
1bbd0b84	276	#undef FUNC_NAME
0f2d19dd JB	277
0f2d19dd JB	278
3b3b36dd	279	SCM_DEFINE (scm_vector_to_list, "vector->list", 1, 0, 0,
1bbd0b84	280	(SCM v),
5ffe9968 GB	281	"@samp{Vector->list} returns a newly allocated list of the objects contained\n"
	282	"in the elements of @var{vector}. (r5rs)\n\n"
	283	"@format\n"
	284	"@t{(vector->list '#(dah dah didah))\n"
	285	"=> (dah dah didah)\n"
	286	"list->vector '(dididit dah))\n"
	287	"=> #(dididit dah)\n"
	288	"}\n"
	289	"@end format")
1bbd0b84	290	#define FUNC_NAME s_scm_vector_to_list
0f2d19dd JB	291	{
	292	SCM res = SCM_EOL;
	293	long i;
	294	SCM *data;
3b3b36dd	295	SCM_VALIDATE_VECTOR (1,v);
0f2d19dd JB	296	data = SCM_VELTS(v);
	297	for(i = SCM_LENGTH(v)-1;i >= 0;i--) res = scm_cons(data[i], res);
	298	return res;
	299	}
1bbd0b84	300	#undef FUNC_NAME
0f2d19dd JB	301
0f2d19dd JB	302
a1ec6916	303	SCM_DEFINE (scm_vector_fill_x, "vector-fill!", 2, 0, 0,
1bbd0b84	304	(SCM v, SCM fill_x),
5ffe9968 GB	305	"Stores @var{fill} in every element of @var{vector}.\n"
5ffe9968 GB	306	"The value returned by @samp{vector-fill!} is unspecified. (r5rs)")
1bbd0b84	307	#define FUNC_NAME s_scm_vector_fill_x
0f2d19dd JB	308	{
	309	register long i;
	310	register SCM *data;
3b3b36dd	311	SCM_VALIDATE_VECTOR (1,v);
0f2d19dd	312	data = SCM_VELTS(v);
a61ef59b MD	313	for(i = SCM_LENGTH(v) - 1; i >= 0; i--)
a61ef59b MD	314	data[i] = fill_x;
0f2d19dd JB	315	return SCM_UNSPECIFIED;
0f2d19dd JB	316	}
1bbd0b84	317	#undef FUNC_NAME
0f2d19dd JB	318
0f2d19dd JB	319
0f2d19dd	320	SCM
1bbd0b84	321	scm_vector_equal_p(SCM x, SCM y)
0f2d19dd JB	322	{
	323	long i;
	324	for(i = SCM_LENGTH(x)-1;i >= 0;i--)
	325	if (SCM_FALSEP(scm_equal_p(SCM_VELTS(x)[i], SCM_VELTS(y)[i])))
	326	return SCM_BOOL_F;
	327	return SCM_BOOL_T;
	328	}
	329
	330
a1ec6916	331	SCM_DEFINE (scm_vector_move_left_x, "vector-move-left!", 5, 0, 0,
1bbd0b84	332	(SCM vec1, SCM start1, SCM end1, SCM vec2, SCM start2),
b380b885	333	"Vector version of @code{substring-move-left!}.")
1bbd0b84	334	#define FUNC_NAME s_scm_vector_move_left_x
0f2d19dd JB	335	{
	336	long i;
	337	long j;
	338	long e;
	339
3b3b36dd GB	340	SCM_VALIDATE_VECTOR (1,vec1);
	341	SCM_VALIDATE_INUM_COPY (2,start1,i);
	342	SCM_VALIDATE_INUM_COPY (3,end1,e);
	343	SCM_VALIDATE_VECTOR (4,vec2);
	344	SCM_VALIDATE_INUM_COPY (5,start2,j);
1bbd0b84 GB	345	SCM_ASSERT (i <= SCM_LENGTH (vec1) && i >= 0, start1, SCM_OUTOFRANGE, FUNC_NAME);
	346	SCM_ASSERT (j <= SCM_LENGTH (vec2) && j >= 0, start2, SCM_OUTOFRANGE, FUNC_NAME);
	347	SCM_ASSERT (e <= SCM_LENGTH (vec1) && e >= 0, end1, SCM_OUTOFRANGE, FUNC_NAME);
	348	SCM_ASSERT (e-i+j <= SCM_LENGTH (vec2), start2, SCM_OUTOFRANGE, FUNC_NAME);
0f2d19dd JB	349	while (i<e) SCM_VELTS (vec2)[j++] = SCM_VELTS (vec1)[i++];
	350	return SCM_UNSPECIFIED;
	351	}
1bbd0b84	352	#undef FUNC_NAME
0f2d19dd	353
a1ec6916	354	SCM_DEFINE (scm_vector_move_right_x, "vector-move-right!", 5, 0, 0,
1bbd0b84	355	(SCM vec1, SCM start1, SCM end1, SCM vec2, SCM start2),
b380b885	356	"Vector version of @code{substring-move-right!}.")
1bbd0b84	357	#define FUNC_NAME s_scm_vector_move_right_x
0f2d19dd JB	358	{
	359	long i;
	360	long j;
	361	long e;
	362
3b3b36dd GB	363	SCM_VALIDATE_VECTOR (1,vec1);
	364	SCM_VALIDATE_INUM_COPY (2,start1,i);
	365	SCM_VALIDATE_INUM_COPY (3,end1,e);
	366	SCM_VALIDATE_VECTOR (4,vec2);
	367	SCM_VALIDATE_INUM_COPY (5,start2,j);
1bbd0b84 GB	368	SCM_ASSERT (i <= SCM_LENGTH (vec1) && i >= 0, start1, SCM_OUTOFRANGE, FUNC_NAME);
	369	SCM_ASSERT (j <= SCM_LENGTH (vec2) && j >= 0, start2, SCM_OUTOFRANGE, FUNC_NAME);
	370	SCM_ASSERT (e <= SCM_LENGTH (vec1) && e >= 0, end1, SCM_OUTOFRANGE, FUNC_NAME);
2cc41672	371	j = e - i + j;
1bbd0b84	372	SCM_ASSERT (j <= SCM_LENGTH (vec2), start2, SCM_OUTOFRANGE, FUNC_NAME);
2cc41672 MD	373	while (i < e)
2cc41672 MD	374	SCM_VELTS (vec2)[--j] = SCM_VELTS (vec1)[--e];
0f2d19dd JB	375	return SCM_UNSPECIFIED;
0f2d19dd JB	376	}
1bbd0b84	377	#undef FUNC_NAME
0f2d19dd JB	378
0f2d19dd JB	379
1cc91f1b	380
0f2d19dd JB	381	void
0f2d19dd JB	382	scm_init_vectors ()
0f2d19dd	383	{
a0599745	384	#include "libguile/vectors.x"
afe5177e GH	385	/*
afe5177e GH	386	scm_make_subr (s_resizuve, scm_tc7_subr_2, scm_vector_set_length_x); */
0f2d19dd JB	387	}
0f2d19dd JB	388
89e00824 ML	389
	390	/*
	391	Local Variables:
	392	c-file-style: "gnu"
	393	End:
	394	*/