Re: [PATCH] long long for printf on MinGW

[Andrew STUBBS <andrew dot stubbs at st dot com>]

Mark Kettenis wrote:
> >  Hi,
> >
> >  Windows/MinGW printf does support printing of long long types, but it
> >  does not do using %lld etc.
> >
> >  This patch converts %ll (or %...ll) to %I64 as required by Windows.
>
> What!  Seven years after ISO C99 was ratified, Microsoft still ships a libc
> that doesn't support %ll?

I'm still using Win2K, so I don't think you can count all of those seven 
years. So are many of our customers and, no doubt, other users. The MSDN 
I have is dated 2002.

> Sigh, I don't see why we need to treat MINGW special here.  We should
> probably
> just print an error if PRINTF_HAS_LONG_LONG isn't defined.

That's what it does, and what I don't want it to do. Why shouldn't I be 
able to see long long values, as supported by the target, just because I 
happen to use a Windows host. It isn't a difficult fixup and doesn't 
break or even affect any other host.

Please don't point out some other way of displaying the value, that 
isn't the point and is just proof that it ought to work.

> Actually I think the way we support size modifiers in gdb's printf are
> completely broken.  Do they refer to the host types, or the target types?

'Completely' broken or not, they work for most peoples' needs, but in 
this respect they don't work for Windows users' needs.

Andrew