SEI CERT C Coding Standard

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Operating System

Handling FP errors

Linux
Solaris 10
Mac OS X 10.5
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="3f3e150c72926b63-3484542b-4ab849c3-8eeb86fc-b4e62f0fffcce36fc875138a"><ac:plain-text-body><![CDATA[Fedora Core 5

C99 FP functions - These functions are declared in fenv.h [[Open Group 04

AA. C References#Open Group 04]]
]]></ac:plain-text-body></ac:structured-macro>
Before fenv.h based functions were standardized; an alternative to using these C99/fenv() functions is using ieee_flags and ieee_handler

<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="b7d8b63f8043950a-10715402-46374240-bc418560-bc863f4ca53165980606ba1d"><ac:plain-text-body><![CDATA[

Windows

Structured Exception Handling - user defined handler _fpieee_flt [[MSDN

AA. C References#MSDN]]
]]></ac:plain-text-body></ac:structured-macro>
 

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Recommendation

Severity

Likelihood

Remediation Cost

Priority

Level

FLP03-A

1 ( low )

2 ( probable ) 2 (

medium )

P4

L3

Related Vulnerabilities

Search for vulnerabilities resulting from the violation of this rule on the CERT website.

References

Wiki Markup
\[[IEEE 754|AA. C References#IEEE 754 2006]\]
\[[Intel 01|AA. C References#Intel 01]\]
\[[Keil 08|AA. C References#Keil 08]\]
\[[MSDN|AA. C References#MSDN]\] "[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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