Re: Lua stack problem.

[Marc Balmer <marc@...>]

Am 13.06.2011 20:53, schrieb Gabriel Lassonde:
> This question was probably answered before but I ran into a problem
> trying to push many lua values from a c function.
>
> This is a small application that shows the problem.
>
> extern "C"
> {
> #include "lua-5.1.4/src/lua.h"
> #include "lua-5.1.4/src/lauxlib.h"
> }
>
> void main()
> {
> 	lua_State * state = luaL_newstate();
>
> 	for(size_t i = 0; i<  50; ++i)
> 	{
> 		//lua_checkstack(state, 1); // Uncommenting this "fixes" the problem.
> 		lua_pushnumber(state, 7.0);
> 	}
>
> 	lua_close(state);
> }
>
> Upon "lua_close" the program crash (Heap corruption).
>
> I am compiling under windows.
>
> Can anyone help me understand what the problem is?

iirc, the "standard" Lua stack has a depth of 20.  You are using 50 
entries.    You should ensure you have enough space by calling lua_settop.

> Thank you,
>
> Gabriel

Consider joining the Lua Workshop in Switzerland,

Marc