lua.h File Reference

C++11 header only interface to easily interact with Lua and Torch. This code is evolved from torch plugin code for MXNet. More...

#include <lua.h>
#include <luaT.h>
#include <lualib.h>
#include <string>
#include <stdexcept>
#include <tuple>
#include <mutex>
#include <memory>
#include <vector>
#include <utility>
#include <algorithm>
#include <unordered_map>
#include <type_traits>
#include "./base.h"
#include "./logging.h"
#include "./thread_local.h"

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Classes
struct	dmlc::lua_stack::Handler< T >
class	dmlc::LuaRef
	an reference to lua object More...
class	dmlc::LuaState
	A Lua state. More...

Namespaces
	dmlc
	namespace for dmlc
	dmlc::lua_stack

Detailed Description

C++11 header only interface to easily interact with Lua and Torch. This code is evolved from torch plugin code for MXNet.

Copyright (c) 2016 by Contributors

This header will require Torch and Lua to be presented, do not include.

Author

Junyuan Xie, Min Lin, Tianqi Chen

// Example code to use the lua module.
dmlc::LuaState* lua = dmlc::LuaState::ThreadLocalState();
// vectors converts automatically to lua table.
auto tbl = lua->Convert(std::vector<int>{1,2,3});
// use eval to get lua reference, this is a function
auto print = lua->Eval("return function(x) print(x) end");
// lua function can be directly called from c++, arguments are converted.
print(100);

// set field in the table.
tbl.SetField("square", lua->Eval("return function(x) x*x end"));
// call the function, covert back to C++ values.
int x = tbl["square"](100).Get<int>();