1 files changed, 18 insertions, 0 deletions
diff --git a/string/bug-strspn1.c b/string/bug-strspn1.c
new file mode 100644
index 0000000000..cd6c012275
--- /dev/null
+++ b/string/bug-strspn1.c
@@ -0,0 +1,18 @@
+/* Test case by Joseph S. Myers <jsm28@cam.ac.uk>.  */
+#define __USE_STRING_INLINES
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+int
+main (void)
+{
+  const char *a = "abc";
+  const char *b = a;
+
+  strspn (b++, "");
+  if (b != a + 1)
+    exit (1);
+
+  exit (0);
+}