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-rw-r--r--gcc-4.2.1-5666.3/libiberty/xmemdup.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/gcc-4.2.1-5666.3/libiberty/xmemdup.c b/gcc-4.2.1-5666.3/libiberty/xmemdup.c
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+++ b/gcc-4.2.1-5666.3/libiberty/xmemdup.c
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+/* xmemdup.c -- Duplicate a memory buffer, using xcalloc.
+ This trivial function is in the public domain.
+ Jeff Garzik, September 1999. */
+
+/*
+
+@deftypefn Replacement void* xmemdup (void *@var{input}, size_t @var{copy_size}, size_t @var{alloc_size})
+
+Duplicates a region of memory without fail. First, @var{alloc_size} bytes
+are allocated, then @var{copy_size} bytes from @var{input} are copied into
+it, and the new memory is returned. If fewer bytes are copied than were
+allocated, the remaining memory is zeroed.
+
+@end deftypefn
+
+*/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#include "ansidecl.h"
+#include "libiberty.h"
+
+#include <sys/types.h> /* For size_t. */
+#ifdef HAVE_STRING_H
+#include <string.h>
+#else
+# ifdef HAVE_STRINGS_H
+# include <strings.h>
+# endif
+#endif
+
+PTR
+xmemdup (const PTR input, size_t copy_size, size_t alloc_size)
+{
+ PTR output = xcalloc (1, alloc_size);
+ return (PTR) memcpy (output, input, copy_size);
+}