Re: [Mingw-users] Where is FLT_MIN_EXP ?

[YuGiOhJCJ Mailing-L. <yug...@la...>]

On Tue, 11 Dec 2012 20:03:09 +0200
Eli Zaretskii <el...@gn...> wrote:

> > Date: Tue, 11 Dec 2012 17:21:55 +0100
> > From: YuGiOhJCJ Mailing-List <yug...@la...>
> > 
> > You say that it should be defined in:
> > $MINGW_ROOT/lib/gcc/mingw32/<version>/include/float.h
> > 
> > But when I am looking for this file, it doesn't exists.
> > $ find /usr/i686-pc-mingw32/ -name "float.h"
> > /usr/i686-pc-mingw32/include/float.h
> > /usr/i686-pc-mingw32/include/c++/4.7.1/tr1/float.h
> 
> Try under /usr/lib instead.
> 

OK.

$ find /usr/lib/ -name "float.h"
/usr/lib/gcc/avr/4.6.0/include/float.h
/usr/lib/gcc/i686-pc-mingw32/4.7.1/include/float.h
/usr/lib/gcc/i486-slackware-linux/4.5.2/include/float.h

So, you can see here I have my i686-pc-mingw32 cross compiler (Linux->Windows) but also an other cross compiler : avr.
It is a cross compiler for programming my microcontroller Atmel attiny2313 :)

Anyway I see FLT_MIN_EXP in my avr cross compiler, in my slackware compiler but not in my i686-pc-mingw32 compiler :
$ cat /usr/lib/gcc/avr/4.6.0/include/float.h | grep FLT_MIN_EXP
#undef FLT_MIN_EXP
#define FLT_MIN_EXP	__FLT_MIN_EXP__
$ cat /usr/lib/gcc/i486-slackware-linux/4.5.2/include/float.h | grep FLT_MIN_EXP
#undef FLT_MIN_EXP
#define FLT_MIN_EXP	__FLT_MIN_EXP__
$ cat /usr/lib/gcc/i686-pc-mingw32/4.7.1/include/float.h | grep FLT_MIN_EXP

So, maybe I have incorrectly build my i686-pc-mingw32 cross compiler...

What you think about this?