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MISRA C:2012 Compliance Matrix

Project: ok_json
Language: C99
Target Standard: MISRA C:2012
Assessment Basis: cppcheck MISRA analysis results
Purpose: Project compliance tracking and repository transparency

1. Scope and Intent

This document tracks the current MISRA C:2012 status of the ok_json codebase.

It is intended to provide a clear, maintainable record of the project's current static-analysis posture and known exceptions. It is not a formal certification artifact and does not by itself constitute full MISRA compliance.

Current status is based on the cppcheck MISRA analysis results for the project.

2. Status Legend

Status Meaning
Pass Currently passing in the project's cppcheck MISRA analysis
Planned Refactor Currently deferred pending future code refactoring
Manual Review Needed May require manual review, process evidence, or analysis beyond current tool results
N/A / Out of Scope Not applicable to the current project scope or not claimed by this matrix

3. Compliance Position Statement

ok_json is being developed toward MISRA C:2012 compliance.

Based on the current cppcheck MISRA analysis results:

  • all currently checked MISRA C:2012 rules are passing
  • all previously known outstanding rule failures have been refactored and resolved
  • no currently suppressed MISRA rule exceptions are being tracked in this matrix

Accordingly, the project should presently be described as:

passing cppcheck MISRA C:2012 analysis with no known outstanding rule failures

The project should avoid overstating this as formal or complete MISRA compliance without the additional process evidence normally associated with a full compliance claim, such as:

  • tool/version/configuration contro
  • documented review scope
  • manual review where needed
  • deviation records if ever applicable
  • assessment of tool limitations

4. Summary

4.1 Current rule exceptions

  • None

4.2 MISRA C:2012 rule status

  • Current status: All pass in current cppcheck MISRA analysis

5. Detailed Compliance Matrix

Rule Short Topic Summary Current Status Notes
All rules checked by the current analysis configuration Various Pass Passing in current cppcheck MISRA analysis.

6. Known Exceptions and Planned Remediation

Rule Planned Action Remarks
N/A No current exceptions tracked. N/A

7. Important Limitations

This matrix reflects the current project tracking state and should be read with the following limitations in mind:

  1. Tool-based results are not the whole compliance story.
    MISRA compliance generally involves more than static-analysis output. It may also require:

    • documented deviations
    • manual code review
    • process evidence
    • tool configuration records
    • assessment of tool limitations

  2. This matrix is based on current reported cppcheck results.
    It should be updated whenever:

    • the code changes materially
    • the tool version changes
    • the MISRA configuration changes

  3. Some MISRA rules may require subject-matter expert review and judgment.
    Static-analysis results should be treated as important evidence, not as the sole basis for compliance claims.

8. Recommended Repository Usage

This file is intended to support:

  • transparent project status reporting
  • internal compliance tracking
  • future remediation planning
  • eventual CI enforcement and deviation management

Recommended future enhancements:

  1. Record the exact cppcheck version used for MISRA analysis.
  2. Record the exact MISRA analysis configuration used in CI.
  3. Add links to tracked issues or TODO items for each failing rule.
  4. Separate future matrices into:
    • Required rules
    • Advisory rules
  5. Add a deviation record if any current exceptions remain intentional long-term.

9. Suggested README Wording

The following wording is recommended:

ok_json currently passes the project's cppcheck MISRA C:2012 analysis with no known outstanding rule failures in the analyzed configurations. This reflects current static-analysis results and should not be interpreted as formal MISRA certification by itself.

10. Maintenance Notes

This document should be updated whenever any of the following occurs:

  • a failing rule is remediated
  • a new failure is introduced
  • the MISRA analysis toolchain changes
  • the project’s compliance claims change
  • formal deviation records are added

11. Current Bottom-Line Assessment

At the time of writing, the ok_json project appears to be in a strong state from a cppcheck MISRA static-analysis perspective.

That is a meaningful project-quality signal.

The most accurate characterization is:

passes all current cppcheck MISRA analysis; formal compliance still depends on broader process and evidence beyond tool output alone