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42 lines
1.2 KiB
42 lines
1.2 KiB
/* unix.c - get more memory with a UNIX system call.
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Copyright 1989 Free Software Foundation
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Written May 1989 by Mike Haertel.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 1, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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The author may be reached (Email) at the address mike@ai.mit.edu,
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or (US mail) as Mike Haertel c/o Free Software Foundation. */
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#ifndef __ONEFILE
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#include "ansidecl.h"
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#include <stddef.h>
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#define _MALLOC_INTERNAL
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#include "malloc.h"
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#endif /* __ONEFILE */
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extern PTR EXFUN(sbrk, (ptrdiff_t size));
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PTR
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DEFUN(__default_morecore, (size), ptrdiff_t size)
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{
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PTR result;
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result = sbrk(size);
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if (result == (PTR) -1)
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return NULL;
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return result;
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}
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