Re: How to pass arguments to argv function effectively in Lua C API

[Marc Balmer <marc@...>]

Am 24.03.2011 um 23:28 schrieb Daurnimator <quae@daurnimator.com>:

> On 25 March 2011 03:48, Jerome Vuarand <jerome.vuarand@gmail.com> wrote:
>>  nargs = lua_gettop(L);
>>  argv = (const char**)lua_newuserdata(L, nargs * sizeof(const char*));
>>  argvlen = (size_t*)lua_newuserdata(L, nargs * sizeof(size_t));
>>  for (i=0; i<nargs; ++i)
>>  {
>>    argv[i] = luaL_checklstring(L, i + 1, &argvlen[i]);
>>  }
>> 
> 
> Is there something wrong with
>        int params = lua_gettop(L);
>        char **argv = malloc(params);
>        int i;
>        for (i=1;i<=params;i++) {
>                argv[i-1]=luaL_checkstring(L,i);
>        }
> 
> 

yes.  this _is_ wrong.

check the size of a char*...

> Daurnimator.
>