merge from gcc

[binutils-gdb.git] / libiberty / xmemdup.c

diff --git a/libiberty/xmemdup.c b/libiberty/xmemdup.c
index f780041aa1330837d66fa1004f5619ca46c60afa..9e9d66b715dbccafcef28f11a368af2ef64a3f1c 100644 (file)
--- a/libiberty/xmemdup.c
+++ b/libiberty/xmemdup.c
@@ -2,6 +2,19 @@
    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
@@ -9,6 +22,9 @@
 #include "libiberty.h"
 
 #include <sys/types.h> /* For size_t. */
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
 
 PTR
 xmemdup (input, copy_size, alloc_size)