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title:Embedding Lua in C
keywords:lua,c,embed
# Embedding Lua in C
Bedimming lua in you C programs is can be done in few minutes.
Many examples is in lua-users.org.
First thing to write is module and then compile everything with lua precompiled lib.
```c
int module_register(lua_State*);
void module_print(lua_State*);
int module_getone(lua_State*);
int module_gc(lua_State*);
int module_tostring(lua_State*);
static const luaL_reg module_methods[] =
{
//{,(void *)},
{"print", (void *)module_print},
{"getone", (void *)module_getone},
{0, 0}
};
static const luaL_reg module_meta[] =
{
{"__gc", (void *)module_gc},
{"__tostring", (void *)module_tostring},
{0, 0}
};
```
to make printf("%s\n") available in lua
```c
void module_print( lua_State *L)
{
int argc = lua_gettop(L);
int n;
for (n=1; n <= argc; n++) printf("%s\n", lua_tostring(L, n));
}
```
next one function that have return value 1
```c
int module_getone(lua_State *L)
{
int x=1;
lua_pushnumber(L, x);
return 1;
}
```
and easy to compile if needed.
```sh
gcc -c module.c
gcc module.o main.c -o main -llua
```
## Links
http://lua-users.org/wiki/SampleCode
## Downloads
lua_embed.zip -
2KiB - http://archive.main.lv/files/writeup/embeding_lua_in_c/lua_embed.zip
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