1 files changed, 23 insertions, 0 deletions
diff --git a/testutil/perror-bad.c b/testutil/perror-bad.c
new file mode 100644
index 0000000..55d36d3
--- /dev/null
+++ b/testutil/perror-bad.c
@@ -0,0 +1,23 @@
+/* See LICENSE file for copyright and license details. */
+#include "../libsyscalls.h"
+
+#include <stddef.h>
+#include <stdio.h>
+
+
+int
+main(int argc, char *argv[])
+{
+	size_t count;
+
+	(void) argc;
+
+#define X(...) 1
+	count = (LIBSYSCALLS_LIST_ERRORS(X, +));
+#undef X
+
+	libsyscalls_perror(argv[1], (enum libsyscalls_error)-1);
+	libsyscalls_perror(argv[1], (enum libsyscalls_error)count);
+
+	return fflush(stderr) || fclose(stderr);
+}