blob: 2e07e1724ce3cff2df15834e1a461df655421780 [file] [log] [blame]
//
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
//
#include <lua.h>
#include <lauxlib.h>
static int l_not(lua_State *L) {
int a = luaL_checkinteger(L, 1);
a = ~a;
lua_pushnumber(L, a);
return 1;
}
static int l_xor(lua_State *L) {
int a = luaL_checkinteger(L, 1);
int b = luaL_checkinteger(L, 2);
a ^= b;
lua_pushnumber(L, a);
return 1;
}
static int l_and(lua_State *L) {
int a = luaL_checkinteger(L, 1);
int b = luaL_checkinteger(L, 2);
a &= b;
lua_pushnumber(L, a);
return 1;
}
static int l_or(lua_State *L) {
int a = luaL_checkinteger(L, 1);
int b = luaL_checkinteger(L, 2);
a |= b;
lua_pushnumber(L, a);
return 1;
}
static int l_shiftr(lua_State *L) {
int a = luaL_checkinteger(L, 1);
int b = luaL_checkinteger(L, 2);
a = a >> b;
lua_pushnumber(L, a);
return 1;
}
static int l_shiftl(lua_State *L) {
int a = luaL_checkinteger(L, 1);
int b = luaL_checkinteger(L, 2);
a = a << b;
lua_pushnumber(L, a);
return 1;
}
static const struct luaL_Reg funcs[] = {
{"band", l_and},
{"bor", l_or},
{"bxor", l_xor},
{"bnot", l_not},
{"shiftl", l_shiftl},
{"shiftr", l_shiftr},
{NULL, NULL}
};
int luaopen_libluabitwise(lua_State *L) {
luaL_register(L, "libluabitwise", funcs);
return 1;
}