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guile/libguile/mallocs.c
Greg J. Badros c209c88e54 *.[ch]: make a distinction between SCM as a generic
name for a Scheme object (now a void*), and SCM as 32 bit word for
storing tags and immediates (now a long int).  Introduced
SCM_ASWORD and SCM_ASSCM for conversion. Fixed various dubious
code in the process: arbiter.c (use macros), unif.c (scm_array_p),
2000-03-09 18:58:58 +00:00

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/* classes: src_files
* Copyright (C) 1995, 1997, 1998 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 */
/* Software engineering face-lift by Greg J. Badros, 11-Dec-1999,
gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */
#include <stdio.h>
#include "_scm.h"
#include "genio.h"
#include "smob.h"
#include "mallocs.h"
#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
static scm_sizet
fmalloc(SCM ptr)
{
if (SCM_MALLOCDATA (ptr))
free (SCM_MALLOCDATA (ptr));
return 0;
}
static int
prinmalloc (SCM exp,SCM port,scm_print_state *pstate)
{
scm_puts("#<malloc ", port);
scm_intprint((int) SCM_CDR(exp), 16, port);
scm_putc('>', port);
return 1;
}
int scm_tc16_malloc;
SCM
scm_malloc_obj (scm_sizet n)
{
SCM mem;
mem = (n
? (SCM)malloc (n)
: 0);
if (n && !mem)
{
SCM_ALLOW_INTS;
return SCM_BOOL_F;
}
SCM_RETURN_NEWSMOB (scm_tc16_malloc, mem);
}
void
scm_init_mallocs ()
{
scm_tc16_malloc = scm_make_smob_type_mfpe ("malloc", 0,
NULL, fmalloc, prinmalloc, NULL);
}