C99 and floating point environment

Posted by yCalleecharan on Stack Overflow See other posts from Stack Overflow or by yCalleecharan
Published on 2010-04-12T18:48:45Z Indexed on 2010/04/12 18:53 UTC
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c99

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floating-point

Hi, I was looking at new features of C99 and saw the floating point environment:

#include <fenv.h>

My question is simple. If I'm performing floating point number computations, do I have to include the above preprocessor directive in my code? If no, then what does this directive do and when does it become important to include?

Thanks a lot...

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