1 files changed, 16 insertions, 0 deletions
diff --git a/difftimeval.c b/difftimeval.c
new file mode 100644
index 0000000..b4c3451
--- /dev/null
+++ b/difftimeval.c
@@ -0,0 +1,16 @@
+/* See LICENSE file for copyright and license details. */
+#include "libsimple.h"
+
+
+int
+libsimple_difftimeval(struct timeval *diff, const struct timeval *minuend, const struct timeval *subtrahend)
+{
+	struct timespec a, b, d;
+	int r;
+	libsimple_timeval2timespec(&a, minuend);
+	libsimple_timeval2timespec(&b, subtrahend);
+	r = libsimple_difftimespec(&d, &a, &b);
+	if (r && errno != ERANGE)
+		return r;
+	return r | libsimple_timespec2timeval(diff, &d);
+}