--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libiberty/memchr.c	Fri Jul 17 14:47:48 2009 +0900
@@ -0,0 +1,32 @@
+/*
+
+@deftypefn Supplemental void* memchr (const void *@var{s}, int @var{c}, size_t @var{n})
+
+This function searches memory starting at @code{*@var{s}} for the
+character @var{c}.  The search only ends with the first occurrence of
+@var{c}, or after @var{length} characters; in particular, a null
+character does not terminate the search.  If the character @var{c} is
+found within @var{length} characters of @code{*@var{s}}, a pointer
+to the character is returned.  If @var{c} is not found, then @code{NULL} is
+returned.
+
+@end deftypefn
+
+*/
+
+#include <ansidecl.h>
+#include <stddef.h>
+
+PTR
+memchr (register const PTR src_void, int c, size_t length)
+{
+  const unsigned char *src = (const unsigned char *)src_void;
+  
+  while (length-- > 0)
+  {
+    if (*src == c)
+     return (PTR)src;
+    src++;
+  }
+  return NULL;
+}