Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/compiler-rt/test/sanitizer_common/TestCases/strnlen.c

@@ -0,0 +1,12 @@
+// RUN: %clang %s -o %t && %run %t 2>&1
+
+#include <assert.h>
+#include <string.h>
+int main(int argc, char **argv) {
+  const char *s = "mytest";
+  assert(strnlen(s, 0) == 0UL);
+  assert(strnlen(s, 1) == 1UL);
+  assert(strnlen(s, 6) == strlen(s));
+  assert(strnlen(s, 7) == strlen(s));
+  return 0;
+}