1 files changed, 40 insertions, 0 deletions
diff --git a/REORG.TODO/stdio-common/scanf4.c b/REORG.TODO/stdio-common/scanf4.c
new file mode 100644
index 0000000000..7a2abec89b
--- /dev/null
+++ b/REORG.TODO/stdio-common/scanf4.c
@@ -0,0 +1,40 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <libc-diag.h>
+
+int
+main(int arc, char *argv[])
+{
+  int res;
+  unsigned int val;
+
+  FILE *fp = fopen ("/dev/null", "r");
+
+  val = 0;
+  res = fscanf(fp, "%n", &val);
+
+  printf("Result of fscanf %%n = %d\n", res);
+  printf("Scanned format = %d\n", val);
+
+  /* We're testing exactly the case the warning is for.  */
+  DIAG_PUSH_NEEDS_COMMENT;
+  DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat-zero-length");
+
+  res = fscanf(fp, "");
+
+  DIAG_POP_NEEDS_COMMENT;
+
+  printf("Result of fscanf \"\" = %d\n", res);
+  if (res != 0)
+    abort ();
+
+  res = fscanf(fp, "BLURB");
+  printf("Result of fscanf \"BLURB\" = %d\n", res);
+  if (res >= 0)
+    abort ();
+
+  fclose (fp);
+
+  return 0;
+  return 0;
+}