add clock

1 files changed, 20 insertions, 0 deletions

diff --git a/euler/include/ctime b/euler/include/ctime
new file mode 100644
index 0000000..9cf1b1f
--- /dev/null
+++ b/euler/include/ctime
@@ -0,0 +1,20 @@
+#pragma once
+
+#include <cstdint>
+
+typedef uint64_t time_t;
+
+struct tm {
+  int tm_sec;
+  int tm_min;
+  int tm_hour;
+  int tm_mday;
+  int tm_mon;
+  int tm_year;
+  int tm_wday;
+  int tm_yday;
+  int tm_isdst;
+};
+
+time_t time(time_t *arg);
+tm *gmtime(const time_t *time);