1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/builtins/lib/strncpy.c b/gcc/testsuite/gcc.c-torture/execute/builtins/lib/strncpy.c
new file mode 100644
index 000000000..a6ec98b05
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/builtins/lib/strncpy.c
@@ -0,0 +1,21 @@
+extern void abort(void);
+extern int inside_main;
+
+typedef __SIZE_TYPE__ size_t;
+
+__attribute__ ((__noinline__))
+char *
+strncpy(char *s1, const char *s2, size_t n)
+{
+  char *dest = s1;
+#ifdef __OPTIMIZE__
+  if (inside_main)
+    abort();
+#endif
+  for (; *s2 && n; n--)
+    *s1++ = *s2++;
+  while (n--)
+    *s1++ = 0;
+  return dest;
+}
+