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Re: strtold, isnormal


On Mar 23 15:41, Gregg Reynolds wrote:
> On Mon, Mar 23, 2009 at 3:19 PM, Andy Koppe <andy.koppe@gmail.com> wrote:
> >>> Oh, btw., the isnormal macro exists in math.h.
> >>
> >> Thanks. ?But for some reason it's not getting picked up:
> >>
> >> gcc -c -I. -I/usr/local/include -I/home/reynolds-gregg/include
> >> -I/usr/local/include -DNDEBUG -D_GNU_SOURCE=1 -D_REENTRANT
> >> -D__EXTENSIONS__ -D_TC_PREFIX="\"/usr/local\""
> >> -D_TC_INCLUDEDIR="\"/usr/local/include\""
> >> -D_TC_LIBDIR="\"/usr/local/lib\"" -D_TC_BINDIR="\"/usr/local/bin\""
> >> -D_TC_LIBEXECDIR="\"/usr/local/libexec\""
> >> -D_TC_APPINC="\"-I/usr/local/include\""
> >> -D_TC_APPLIBS="\"-L/usr/local/lib -ltokyocabinet -lbz2 -lz -lpthread
> >> -lm -lc \"" -I/usr/include -std=c99 -Wall -fPIC -fsigned-char -O2
> >> tcutil.c
> >>
> >> result:
> >>
> >> tcutil.c:4948: warning: implicit declaration of function `isnormal'
> >
> > isnormal() and a load of other things are guarded by
> > '#if !defined(__STRICT_ANSI__)' in math.h, and __STRICT_ANSI__ does
> > get defined for -std=c99.
> >
> > It's definitely in the C99 standard though, so either the header is
> > wrong or __STRICT_ANSI__ shouldn't be defined.
> >
> 
> Aha!  The fix described here
> http://osdir.com/ml/lib.dietlibc/2003-11/msg00005.html seems to work,
> although I don't know if it's appropriate for cygwin.  Now I just have
> to figure out what to do about strtold.

#define strtold(a,b)	((long double)strtod((a),(b)))


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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