Re: Why is the stack cleared on panic?

[Julio Merino <jmmv84@...>]

On Mon, Jan 10, 2011 at 4:29 PM, Alexander Gladysh <agladysh@gmail.com> wrote:
> On Mon, Jan 10, 2011 at 18:50, Julio Merino <jmmv84@gmail.com> wrote:
>
>> static jmp_buf buf;
>
>> int panic_handler(lua_State* s)
>> {
>>    longjmp(buf, 1);
>> }
>
>> void safe_gettable(lua_State* s, const int index)
>> {
>>    if (setjmp(buf) == 0)
>>        lua_gettable(s, index);
>>    else
>>        throw error('Uh oh, lua_gettable failed');
>> }
>
> Um. This looks like you intend to work from C++ with Lua, compiled as C.
>
> In general, this is not a good idea.

Yep, I found that the hard way.  That said I'd prefer the ability to
use prebuilt Lua libraries shipped as binary packages (for your
preferred distro).  Is that a bad idea in general too?  (Maybe yes
based on the amount of settings in luaconf.h... but I'm very new
around here!)

-- 
Julio Merino