summaryrefslogtreecommitdiff
path: root/include/string.h
diff options
context:
space:
mode:
authorWaldemar Brodkorb <wbx@uclibc-ng.org>2015-12-22 10:56:08 +0100
committerWaldemar Brodkorb <wbx@uclibc-ng.org>2015-12-22 14:32:49 +0100
commit2a3ffa836a3a9f94f19ee2671f41c1851221a105 (patch)
treec741bd03f75cac3b88f7b094423b7832eef71c17 /include/string.h
parent74b17c7956b8f0bd109b0fd26a8a9869441d09bf (diff)
Use gcc's __builtin_mempcpy() as __mempcpy(), if possible
Patch from OpenWrt. Reported-by: Leonid Lisovskiy <lly.dev@gmail.com>
Diffstat (limited to 'include/string.h')
-rw-r--r--include/string.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/string.h b/include/string.h
index 1d75f449f..80585ef94 100644
--- a/include/string.h
+++ b/include/string.h
@@ -258,7 +258,9 @@ extern void *memmem (const void *__haystack, size_t __haystacklen,
/* Copy N bytes of SRC to DEST, return pointer to bytes after the
last written byte. */
-#if 0 /* uClibc: disabled */
+#if __GNUC_PREREQ (3, 4)
+# define __mempcpy(dest, src, n) __builtin_mempcpy(dest, src, n)
+#else /* uClibc: disabled */
extern void *__mempcpy (void *__restrict __dest,
const void *__restrict __src, size_t __n)
__THROW __nonnull ((1, 2));