SEI CERT C Coding Standard

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Operating System

How to handle floating point errors

Linux
Solaris 10
Mac OS X 10.5

Use the C99 floating point exception functions.

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Windows

Either use the C99 floating point exception function or structured exception handling through _fpieee_flt [[MSDN

AA. C References#MSDN]]

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\[[IEEE 754|AA. C References#IEEE 754 2006]\]
\[[Intel 01|AA. C References#Intel 01]\]
\[[Keil 08|AA. C References#Keil 08]\]
\[[MSDN|AA. C References#MSDN]\] "[fpieee_flt (CRT)|http://msdn.microsoft.com/en-us/library/te2k2f2t(VS.80).aspx]"
\[[Open Group 04|AA. C References#Open Group 04]\] "[fenv.h - Floating point environment|http://www.opengroup.org/onlinepubs/009695399/basedefs/fenv.h.html]"
\[[SecurityFocus 07|AA. C References#SecurityFocus 07]\]

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VOID FLP02-A. Understand the caveats of floating point exceptions      05. Floating Point (FLP)       FLP04-A. Consider avoiding floating point numbers when precise computation is needed