Function math_type

extlibs/lua/src/lmathlib.c:233–241

static int math_type (lua_State *L) {
  if (lua_type(L, 1) == LUA_TNUMBER)
    lua_pushstring(L, (lua_isinteger(L, 1)) ? "integer" : "float");
  else {
    luaL_checkany(L, 1);
    luaL_pushfail(L);
  }
  return 1;
}