Function lua_iscfunction

lua/src/lapi.c:301–304

LUA_API int lua_iscfunction (lua_State *L, int idx) {
  const TValue *o = index2value(L, idx);
  return (ttislcf(o) || (ttisCclosure(o)));
}


LUA_API int lua_isinteger (lua_State *L, int idx) {