1 files changed, 34 insertions, 0 deletions
diff --git a/gcc-4.7/libiberty/strncmp.c b/gcc-4.7/libiberty/strncmp.c
new file mode 100644
index 000000000..23f6df617
--- /dev/null
+++ b/gcc-4.7/libiberty/strncmp.c
@@ -0,0 +1,34 @@
+/* strncmp -- compare two strings, stop after n bytes.
+   This function is in the public domain.  */
+
+/*
+
+@deftypefn Supplemental int strncmp (const char *@var{s1}, @
+  const char *@var{s2}, size_t @var{n})
+
+Compares the first @var{n} bytes of two strings, returning a value as
+@code{strcmp}.
+
+@end deftypefn
+
+*/
+
+#include <ansidecl.h>
+#include <stddef.h>
+
+int
+strncmp(const char *s1, const char *s2, register size_t n)
+{
+  register unsigned char u1, u2;
+
+  while (n-- > 0)
+    {
+      u1 = (unsigned char) *s1++;
+      u2 = (unsigned char) *s2++;
+      if (u1 != u2)
+	return u1 - u2;
+      if (u1 == '\0')
+	return 0;
+    }
+  return 0;
+}