*update

1 files changed, 10 insertions, 0 deletions

diff --git a/src/lua/math/luaopen_math.cpp b/src/lua/math/luaopen_math.cpp
index e4f68df..462e8d1 100644
--- a/src/lua/math/luaopen_math.cpp
+++ b/src/lua/math/luaopen_math.cpp
@@ -6,7 +6,17 @@ namespace jin
 namespace lua
 {
 
+    static int l_mod(lua_State* L)
+    {
+        int n = luax_checkinteger(L, 1);
+        int m = luax_checkinteger(L, 2);
+        int mod = n % m;
+        luax_pushinteger(L, mod);
+        return 1;
+    }
+
     static const luaL_Reg f[] = {
+        { "mod", l_mod },
         { 0, 0 }
     };