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floating point comparison..

 
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praveen hegde
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floating point comparison..
PostPosted: Thu Jan 22, 2009 7:11 am     Reply with quote
Hi,

How to compare floating point variable with a macro(float)?

Thanks
PCM programmer



Joined: 06 Sep 2003
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PostPosted: Fri Jan 23, 2009 3:13 pm     Reply with quote
Look at the section on "Safe Comparisons" down near the end of this page:
http://www.lahey.com/float.htm
andrewg



Joined: 17 Aug 2005
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PostPosted: Sun Jan 25, 2009 4:13 am     Reply with quote
Due to the way IEEE 754 values are represented in binary, you can actually treat them like 32-bit integers when comparing FP-FP. To compare FP to an integer, you'd need to convert the integer to FP first.
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