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Unified Diff: bison/src/bison/2.4.1/bison-2.4.1-src/lib/xmalloc.c

Issue 10807020: Add native Windows binary for bison. (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/
Patch Set: Created 8 years, 5 months ago
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Index: bison/src/bison/2.4.1/bison-2.4.1-src/lib/xmalloc.c
===================================================================
--- bison/src/bison/2.4.1/bison-2.4.1-src/lib/xmalloc.c (revision 0)
+++ bison/src/bison/2.4.1/bison-2.4.1-src/lib/xmalloc.c (revision 0)
@@ -0,0 +1,122 @@
+/* xmalloc.c -- malloc with out of memory checking
+
+ Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+ 1999, 2000, 2002, 2003, 2004, 2005, 2006, 2008 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 3 of the License, 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 program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include <config.h>
+
+#if ! HAVE_INLINE
+# define static_inline
+#endif
+#include "xalloc.h"
+#undef static_inline
+
+#include <stdlib.h>
+#include <string.h>
+
+#ifndef SIZE_MAX
+# define SIZE_MAX ((size_t) -1)
+#endif
+
+/* 1 if calloc is known to be compatible with GNU calloc. This
+ matters if we are not also using the calloc module, which defines
+ HAVE_CALLOC and supports the GNU API even on non-GNU platforms. */
+#if defined HAVE_CALLOC || defined __GLIBC__
+enum { HAVE_GNU_CALLOC = 1 };
+#else
+enum { HAVE_GNU_CALLOC = 0 };
+#endif
+
+/* Allocate N bytes of memory dynamically, with error checking. */
+
+void *
+xmalloc (size_t n)
+{
+ void *p = malloc (n);
+ if (!p && n != 0)
+ xalloc_die ();
+ return p;
+}
+
+/* Change the size of an allocated block of memory P to N bytes,
+ with error checking. */
+
+void *
+xrealloc (void *p, size_t n)
+{
+ p = realloc (p, n);
+ if (!p && n != 0)
+ xalloc_die ();
+ return p;
+}
+
+/* If P is null, allocate a block of at least *PN bytes; otherwise,
+ reallocate P so that it contains more than *PN bytes. *PN must be
+ nonzero unless P is null. Set *PN to the new block's size, and
+ return the pointer to the new block. *PN is never set to zero, and
+ the returned pointer is never null. */
+
+void *
+x2realloc (void *p, size_t *pn)
+{
+ return x2nrealloc (p, pn, 1);
+}
+
+/* Allocate S bytes of zeroed memory dynamically, with error checking.
+ There's no need for xnzalloc (N, S), since it would be equivalent
+ to xcalloc (N, S). */
+
+void *
+xzalloc (size_t s)
+{
+ return memset (xmalloc (s), 0, s);
+}
+
+/* Allocate zeroed memory for N elements of S bytes, with error
+ checking. S must be nonzero. */
+
+void *
+xcalloc (size_t n, size_t s)
+{
+ void *p;
+ /* Test for overflow, since some calloc implementations don't have
+ proper overflow checks. But omit overflow and size-zero tests if
+ HAVE_GNU_CALLOC, since GNU calloc catches overflow and never
+ returns NULL if successful. */
+ if ((! HAVE_GNU_CALLOC && xalloc_oversized (n, s))
+ || (! (p = calloc (n, s)) && (HAVE_GNU_CALLOC || n != 0)))
+ xalloc_die ();
+ return p;
+}
+
+/* Clone an object P of size S, with error checking. There's no need
+ for xnmemdup (P, N, S), since xmemdup (P, N * S) works without any
+ need for an arithmetic overflow check. */
+
+void *
+xmemdup (void const *p, size_t s)
+{
+ return memcpy (xmalloc (s), p, s);
+}
+
+/* Clone STRING. */
+
+char *
+xstrdup (char const *string)
+{
+ return xmemdup (string, strlen (string) + 1);
+}
Property changes on: bison\src\bison\2.4.1\bison-2.4.1-src\lib\xmalloc.c
___________________________________________________________________
Added: svn:eol-style
+ LF
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