Sync usage with man page.
[netbsd-mini2440.git] / gnu / lib / libmalloc / valloc.c
blobfcf117447f03a38802f695bf48ba3702f0166ce9
1 /* Allocate memory on a page boundary.
2 Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
4 This library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
9 This library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with this library; see the file COPYING.LIB. If
16 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
17 Cambridge, MA 02139, USA.
19 The author may be reached (Email) at the address mike@ai.mit.edu,
20 or (US mail) as Mike Haertel c/o Free Software Foundation. */
22 #ifndef _MALLOC_INTERNAL
23 #define _MALLOC_INTERNAL
24 #include <malloc.h>
25 #endif
27 #ifdef __GNU_LIBRARY__
28 extern size_t __getpagesize __P ((void));
29 #else
30 #include "getpagesize.h"
31 #define __getpagesize() getpagesize()
32 #endif
34 static size_t pagesize;
36 __ptr_t
37 valloc (size)
38 size_t size;
40 if (pagesize == 0)
41 pagesize = __getpagesize ();
43 return memalign (pagesize, size);