Function luaL_optnumber

lua/lauxlib.c:223–225

LUALIB_API lua_Number luaL_optnumber (lua_State *L, int narg, lua_Number def) {
  return luaL_opt(L, luaL_checknumber, narg, def);
}


LUALIB_API lua_Integer luaL_checkinteger (lua_State *L, int narg) {