1 files changed, 34 insertions, 0 deletions
diff --git a/libj2_not_ju_to_j2u.c b/libj2_not_ju_to_j2u.c
new file mode 100644
index 0000000..aee0715
--- /dev/null
+++ b/libj2_not_ju_to_j2u.c
@@ -0,0 +1,34 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+#ifndef TEST
+
+extern inline void libj2_not_ju_to_j2u(uintmax_t a, struct libj2_j2u *res);
+/* TODO Add man page */
+
+
+#else
+
+int
+main(void)
+{
+	struct libj2_j2u r;
+
+	r = (struct libj2_j2u){111, 222};
+	libj2_not_ju_to_j2u(0, &r);
+	EXPECT(r.high == UINTMAX_MAX);
+	EXPECT(r.low == UINTMAX_MAX);
+
+	r = (struct libj2_j2u){111, 222};
+	libj2_not_ju_to_j2u(UINTMAX_MAX, &r);
+	EXPECT(r.high == UINTMAX_MAX);
+	EXPECT(r.low == 0);
+
+	r = (struct libj2_j2u){111, 222};
+	libj2_not_ju_to_j2u(UINTMAX_C(0x5245FBA4), &r);
+	EXPECT(r.high == UINTMAX_MAX);
+	EXPECT(r.low == ~(uintmax_t)UINTMAX_C(0x5245FBA4));
+
+	return 0;
+}
+
+#endif