Page Information

Title:	ERR32-C. Do not rely on indeterminate values of errno
Author:	Robert Seacord	Oct 04, 2007
Last Changed by:	Francesco Mariani	Aug 06, 2025
Tiny Link: (useful for email)	https://wiki.sei.cmu.edu/confluence/x/-dUxBQ
Export As:	Word · PDF

SEI CERT C Coding Standard (1)     Page: CC. Undefined Behavior

Parent Page     Page: Rule 12. Error Handling (ERR)

• signal
• asynchronous
• review-dms
• nptc
• rose-possible
• review
• android-applicable
• review-jb
• review-rcs
• posix
• rule
• review-ajb
• err
• nptc-complexity
• in-cpp

Time	Editor
Aug 06, 2025 13:40	Francesco Mariani	View Changes
May 05, 2025 09:16	Caden Milne	View Changes
REM Cost Reform
Mar 27, 2025 16:53	Caden Milne	View Changes
Identify undefined behavior
Jan 19, 2025 17:46	Michal Rozenau	View Changes
Parasoft C/C++test 2024.2
Dec 12, 2024 01:36	Swasti Shrivastava

External Links (10)
    https://wiki.sei.cmu.edu/confluence/display/c/Polyspace+Bug…
    https://wiki.sei.cmu.edu/confluence/display/c/How+this+Codi…
    https://wiki.sei.cmu.edu/confluence/display/c/SIG31-C.+Do+n…
    https://www.kb.cert.org/vulnotes/bymetric?searchview&query=…
    https://wiki.sei.cmu.edu/confluence/display/c/ERR32-C.+Do+n…
    https://wiki.sei.cmu.edu/confluence/display/c/SIG30-C.+Call…
    https://wiki.sei.cmu.edu/confluence/pages/viewpage.action?p…
    https://wiki.sei.cmu.edu/confluence/pages/viewpage.action?p…
    https://wiki.sei.cmu.edu/confluence/pages/viewpage.action?p…
    https://www.mathworks.com/help/bugfinder/ref/certcruleerr32…

SEI CERT C Coding Standard (28)     Page: AA. Bibliography     Page: Parasoft_V     Page: Coverity     Page: BB. Definitions     Page: Klocwork_V     Page: Cppcheck Premium     Page: Astrée     Page: Helix QAC_V     Page: RuleChecker_V     Page: CC. Undefined Behavior     Page: Security Reviewer - Static Reviewer     Page: SIG31-C. Do not access shared objects in signal handlers     Page: Parasoft     Page: RuleChecker     Page: Coverity_V     Page: Klocwork     Page: Rose     Page: LDRA_V     Page: Astrée_V     Page: Cppcheck Premium_V     Page: SIG30-C. Call only asynchronous-safe functions within signal handlers     Page: Helix QAC     Page: Security Reviewer - Static Reviewer_V     Home page: SEI CERT C Coding Standard     Page: Axivion Bauhaus Suite     Page: LDRA     Page: Polyspace Bug Finder_V     Page: Axivion Bauhaus Suite_V