chicken-users
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Chicken-users] llvm-gcc / clang


From: Felix
Subject: Re: [Chicken-users] llvm-gcc / clang
Date: Thu, 02 Dec 2010 09:34:50 -0500 (EST)

From: John Cowan <address@hidden>
Subject: Re: [Chicken-users] llvm-gcc / clang
Date: Thu, 2 Dec 2010 08:35:21 -0500

> Felix scripsit:
> 
>> Oh, and clang gave me stupid warnings that where actually wrong
>> (an "x == x" comparison of floats to detect NaN, which is IMHO
>> totally correct, triggers a warning - but I'm sure John can give
>> us the correct interpretation of the standard C semantics).
> 
> ISO C doesn't require support for NaNs.
> 

If we assume the underlying machine implements IEEE semantics for the
floating-point math, would such a comparison be technically incorrect?


cheers,
felix



reply via email to

[Prev in Thread] Current Thread [Next in Thread]