使用luabind完成c++和lua脚本调用示例备份

C++程序调用lua脚本并返回相应的值，和在lua中调用c++ 注册的函数和类型搞明白了。备份一下。



extern "C" {
#include "lua.h"
#include "lualib.h"
#include "lauxlib.h"
}
#include
#include
void greet()
{ std::cout << "hello world!\n";
}
int add(int a,int b)
{
return a+b;
}
class User
{
private:
User():id(0){ }
~User(){}
static User* instance;
int id;
public:
static User& Instance(){
if(!instance)
{
instance = new User;
if(instance)return *instance;
}
return *instance;
}
int Id(){ return id;}
void setid(int _id){ id = _id;}
};
User* User::instance = NULL;
/////////////脚本函数///////////////
User& instance()
{
return User::Instance();
}
////////////////////////////
extern "C"
int init(lua_State* L)
{ using namespace luabind;
open(L);
lua_cpcall(L,luaopen_base,0);
module(L)
[
def("greet", &greet),
def("add",&add),
def("instance",&instance)
];
module(L)
[
class_("User")
.def("Id", &User::Id)
.def("setid", &User::setid)
];
return 0;
}
int main()
{
lua_State* L = luaL_newstate();
init(L);
int ret = luaL_dofile(L, "test2.lua");
if(ret!=0){
printf("执行LUA脚本文件出错:%s\n",lua_tostring(L,-1));
}
int res = luabind::call_function(L,"Int", 2, 23);
printf("执行LUA脚本文件:%u\n",res);


lua_close(L);

return 0;
}
编译命令 g++ lua2.cpp -o lua2 -I/usr/local/include -L/usr/local/lib -llua -lluabind



lua脚本如下



greet()
print(add(2,4))
user = instance()
user:setid(4)
print(user:Id())




function Int(a, b)
return a*b
end


更多详细 http://www.cppblog.com/liangairan/articles/71131.html