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RULE-11-4: Consider 0 to be a null pointer constant. #331

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lcartey opened this issue Jul 29, 2023 · 0 comments · Fixed by #332
Closed

RULE-11-4: Consider 0 to be a null pointer constant. #331

lcartey opened this issue Jul 29, 2023 · 0 comments · Fixed by #332
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@lcartey
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Difficulty-Low A false positive or false negative report which is expected to take <1 day effort to address false positive/false negative An issue related to observed false positives or false negatives. Impact-Medium Phase II user-report Issue reported by an end user of CodeQL Coding Standards

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@lcartey
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lcartey commented Jul 29, 2023 •
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Affected rules

  • RULE-11-1
  • RULE-11-4
  • RULE-11-5
  • RULE-11-6

Description

According to MISRA C 2012 8.11 zero is a null pointer constant, and so should not be flagged as non_compliant.

Example

unsigned int *v4 = 0; // COMPLIANT
@lcartey lcartey added Difficulty-Low A false positive or false negative report which is expected to take <1 day effort to address false positive/false negative An issue related to observed false positives or false negatives. labels Jul 29, 2023
@lcartey lcartey self-assigned this Jul 29, 2023
@lcartey lcartey mentioned this issue Jul 29, 2023
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@ravikprasad ravikprasad added user-report Issue reported by an end user of CodeQL Coding Standards Phase II labels Feb 20, 2024
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@lcartey lcartey

Labels
Difficulty-Low A false positive or false negative report which is expected to take <1 day effort to address false positive/false negative An issue related to observed false positives or false negatives. Impact-Medium Phase II user-report Issue reported by an end user of CodeQL Coding Standards
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Coding Standards Public Development Board
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Rule 11.4 improvements github/codeql-coding-standards
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@lcartey @ravikprasad