Re: simple question about lua<-->C

[Guilherme <cox@...>]

Thank you Etan.

You were right. My mistake.. I changed here and it's running ok now.

Regards, Guilherme

On Wed, Mar 11, 2009 at 6:52 PM, Etan Reisner
<deryni@unreliablesource.net> wrote:
> On Wed, Mar 11, 2009 at 06:44:53PM -0300, Guilherme wrote:
> <snip>
>>     luaL_loadfile( m_hPrivateState, "teste.lua" );
>
> You need to lua_pcall the chunk returned by luaL_loadfile here.
>
> As the reference manual says "Also as lua_load, this function only loads
> the chunk; it does not run it."
>
> As loading a chunk doesn't run it none of the function definitions in the
> chunk will take effect until after you call it. Once you use lua_call or
> lua_pcall on the loaded chunk you should be able to continue with the rest
> of your example code.
>
>>       /* the function name */
>>       lua_getglobal(m_hPrivateState, "fadd");
>>
>>       /* the first argument */
>>       lua_pushnumber(m_hPrivateState, x);
>>
>>       /* the second argument */
>>       lua_pushnumber(m_hPrivateState, y);
>>
>>       /* call the function with 2
>>          arguments, return 1 result */
>>       lua_call( m_hPrivateState, 2, 1);
>
> You may want to consider using lua_pcall instead of lua_call as it is used
> to catch errors of this sort without crashing the host application.
>
> <snip>
>
>    -Etan
>