SEI CERT C Coding Standard

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Operating System

How to handle floating point errors

Linux
Solaris 10
AIX 5.3
HP-UX 11.31
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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Search for vulnerabilities resulting from the violation of this rule on the CERT website.

Other Languages

This rule appears in the C++ Secure Coding Standard as FLP03-CPP. Detect and handle floating point errors.

References

Wiki Markup
\[[IEEE 754|AA. C References#IEEE 754 2006]\]
\[[Intel 01|AA. C References#Intel 01]\]
\[[Keil 08|AA. C References#Keil 08]\]
\[[MITRE 07|AA. C References#MITRE 07]\] [CWE ID 369|http://cwe.mitre.org/data/definitions/369.html], "Divide By Zero"
\[[MSDN|AA. C References#MSDN]\] "[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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