Page Information

Title:	STR37-C. Arguments to character-handling functions must be representable as an unsigned char
Author:	Robert Seacord	Oct 20, 2006
Last Changed by:	Caden Milne	Nov 07, 2024
Tiny Link: (useful for email)	https://wiki.sei.cmu.edu/confluence/x/BNcxBQ
Export As:	Word · PDF

SEI CERT C Coding Standard (2)     Page: CC. Undefined Behavior     Page: STR34-C. Cast characters to unsigned char before converting to larger integer sizes

Parent Page     Page: Rule 07. Characters and Strings (STR)

• char-strings
• compass/rose
• rose-na-macros
• android-applicable
• ptc
• cwe-704
• cwe-686
• rule
• str
• in-cpp

Time	Editor
Nov 07, 2024 09:39	Caden Milne	View Changes
Updated references from C11->C23
Apr 20, 2023 05:21	Jill Britton	View Changes
Apr 27, 2022 07:54	Jill Britton	View Changes
Nov 30, 2021 11:44	Jill Britton	View Changes
Apr 23, 2021 04:13	Jill Britton

External Links (13)
    cwe.mitre.org/data/definitions/704.html
    https://wiki.sei.cmu.edu/confluence/display/c/Polyspace+Bug…
    https://wiki.sei.cmu.edu/confluence/pages/viewpage.action?p…
    https://www.kb.cert.org/vulnotes/bymetric?searchview&query=…
    https://wiki.sei.cmu.edu/confluence/display/c/SEI+CERT+C+Co…
    https://wiki.sei.cmu.edu/confluence/pages/viewpage.action?p…
    https://wiki.sei.cmu.edu/confluence/display/c/AA.+Bibliogra…
    https://wiki.sei.cmu.edu/confluence/display/c/How+this+Codi…
    https://wiki.sei.cmu.edu/confluence/display/c/STR34-C.+Cast…
    https://wiki.sei.cmu.edu/confluence/pages/viewpage.action?p…
    https://wiki.sei.cmu.edu/confluence/pages/viewpage.action?p…
    https://cwe.mitre.org/data/index.html
    https://www.mathworks.com/help/bugfinder/ref/certcrulestr37…

SEI CERT C Coding Standard (27)     Page: Klocwork_V     Page: STR34-C. Cast characters to unsigned char before converting to larger integer sizes     Page: Axivion Bauhaus Suite     Page: Astrée_V     Home page: SEI CERT C Coding Standard     Page: LDRA     Page: Parasoft_V     Page: TrustInSoft Analyzer     Page: Polyspace Bug Finder_V     Page: CC. Undefined Behavior     Page: ECLAIR_V     Page: Helix QAC     Page: BB. Definitions     Page: RuleChecker     Page: ECLAIR     Page: LDRA_V     Page: Astrée     Page: TrustInSoft Analyzer_V     Page: Axivion Bauhaus Suite_V     Page: Helix QAC_V     Page: RuleChecker_V     Page: CodeSonar     Page: AA. Bibliography     Page: CodeSonar_V     Page: Klocwork     Page: Rose     Page: Parasoft