1 files changed, 19 insertions, 0 deletions
diff --git a/test/msan/__strxfrm_l.cc b/test/msan/__strxfrm_l.cc
new file mode 100644
index 000000000..c4eb10efb
--- /dev/null
+++ b/test/msan/__strxfrm_l.cc
@@ -0,0 +1,19 @@
+// RUN: %clangxx_msan -std=c++11 -O0 -g %s -o %t && %run %t
+// REQUIRES: x86_64-linux
+
+#include <assert.h>
+#include <locale.h>
+#include <sanitizer/msan_interface.h>
+#include <stdlib.h>
+#include <string.h>
+
+extern "C" decltype(strxfrm_l) __strxfrm_l;
+
+int main(void) {
+  char q[10];
+  locale_t loc = newlocale(LC_ALL_MASK, "", (locale_t)0);
+  size_t n = __strxfrm_l(q, "qwerty", sizeof(q), loc);
+  assert(n < sizeof(q));
+  __msan_check_mem_is_initialized(q, n + 1);
+  return 0;
+}