Subject: Re: isnan() macro
To: None <>
From: Dan McMahill <>
List: tech-userlevel
Date: 08/05/2004 07:37:44
On Thu, Aug 05, 2004 at 02:15:06AM +0100, phlox wrote:
> Greetings.
> In a C++ program, why can't I use isnan() and all those C99 macros ?
> I know I need to define _GLIBCPP_USE_C99, but when I do it, it breaks other
> functions. 
> Anyway, I found a replacement (isnanf()), but my question is: isn't this non
> standard ?
> (I know g++ is not fully C99 compliant. I just need a good clarification on
> this issue)
> Thanks in advance.

see  PR#25930.  This was fixed in -current a month or so ago and in the 2.0
branch a couple of days ago.