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guile/libguile/mallocs.c
2001-06-03 23:32:27 +00:00

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/* classes: src_files
* Copyright (C) 1995,1997,1998,2000,2001 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)
* 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 */
#include "libguile/_scm.h"
#include "libguile/ports.h"
#include "libguile/smob.h"
#include "libguile/mallocs.h"
#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
scm_bits_t scm_tc16_malloc;
static size_t
malloc_free (SCM ptr)
{
if (SCM_MALLOCDATA (ptr))
free (SCM_MALLOCDATA (ptr));
return 0;
}
static int
malloc_print (SCM exp, SCM port, scm_print_state *pstate)
{
scm_puts("#<malloc ", port);
scm_intprint (SCM_CELL_WORD_1 (exp), 16, port);
scm_putc('>', port);
return 1;
}
SCM
scm_malloc_obj (size_t n)
{
scm_bits_t mem = n ? (scm_bits_t) malloc (n) : 0;
if (n && !mem)
return SCM_BOOL_F;
SCM_RETURN_NEWSMOB (scm_tc16_malloc, mem);
}
void
scm_init_mallocs ()
{
scm_tc16_malloc = scm_make_smob_type ("malloc", 0);
scm_set_smob_free (scm_tc16_malloc, malloc_free);
scm_set_smob_print (scm_tc16_malloc, malloc_print);
}
/*
Local Variables:
c-file-style: "gnu"
End:
*/