Re: problem with string.format %d and very large integers

[KHMan <keinhong@...>]

On 7/30/2011 7:53 AM, Tom N Harris wrote:
> On 07/29/2011 07:51 AM, KHMan wrote:
> > WinXP, MinGW gcc 4.5.2 (TDM)
> >
> > In luaconf.h, LUA_WIN does not define LUA_USE_LONGLONG. So in
> > lstrlib.c,
> > LUA_INTFRM uses 'l'/long instead of 'll'/long long.
> >
> > IIRC, 'll' does not work for msvcrt.dll.
>
> For what it's worth, Microsoft added "long long" and "%lld"
> support in Visual C++ 2005 and msvcr80.dll.

I stand corrected. Microsoft has indeed come a long way in terms 
of ISO C/C++ support and standards participation. I was more 
familiar with a past, less standards-complaint VC++ era ;-)

> It is possible for gcc to link against other versions, but because
> of the startup code you have to use -nodefaultlibs and manually
> list the standard libraries. Otherwise you end up importing from
> both msvcr80.dll and msvcrt.dll.
>
> The downside is you have to embed manifests and distribute the
> runtime with the application.

I guess C-people already implicitly ascribe C-like limits to such 
things as "%d" in Lua, plus given the intention of Lua as an 
embedded language... I avoid corner cases like plague.

Perhaps this is worth putting up something on the Lua wiki...

--
Cheers,
Kein-Hong Man (esq.)
Kuala Lumpur, Malaysia