diff --git a/cpp/leap/leap.h b/cpp/leap/leap.h
new file mode 100644
index 0000000..1e4e2f3
--- /dev/null
+++ b/cpp/leap/leap.h
@@ -0,0 +1,12 @@
+#pragma once
+
+#define EXERCISM_RUN_ALL_TESTS
+
+namespace leap {
+
+inline bool is_leap_year(int year)
+{
+    return !(year % 4) && ((year % 100) || !(year % 400));
+}
+
+}