JavaScript is not currently enabled, but is required for full CodeSonar manual search and browse functionality.

If you are viewing this file in your hub's Web GUI, enable JavaScript in your browser: you will also need it for GUI functionality.

If you opened this file directly from disk, your browser may be directly suppressing JavaScript functionality: certain browsers perform this suppression on local files (but not files delivered by web servers) for security reasons.

CodeSonar® 9.2p0 CONFIDENTIAL CodeSecure Inc
C and C++

LANG.PREPROC.UNDEF : Use of #undef

Summary

Preprocessor directive #undef was used.

Properties

Class Name Use of #undef
Significance style
Mnemonic LANG.PREPROC.UNDEF
Categories
MisraC2025 MisraC2025:20.5 #undef should not be used
MisraC2023 MisraC2023:20.5 #undef should not be used
Misra2012 Misra2012:20.5 #undef should not be used
Misra2004 Misra2004:19.6 #undef shall not be used
AUTOSARC++14 AUTOSARC++14:A16-0-1 The pre-processor shall only be used for unconditional and conditional file inclusion and include guards, and using the following directives: (1) #ifndef, (2) #ifdef, (3) #if, (4) #if defined, (5) #elif, (6) #else, (7) #define, (8) #endif, (9) #include.
MisraC++2008 MisraC++2008:16-0-3 #undef shall not be used.
MisraC++2023 MisraC++2023:19.0.4 #undef should only be used for macros defined previously in the same file
CWE CWE:710 Improper Adherence to Coding Standards
JPL JPL:22 Do not undefine or redefine macros.
Availability Available for C and C++.
Enabling Checks for this warning class are disabled by default. To enable them, add the following WARNING_FILTER rule to the project configuration file. 
WARNING_FILTER += allow class="Use of #undef"

Example 

/* 'Use of #undef' warning issued on following line */
#undef CLEAR

Relevant Configuration File Parameters

The following configuration file parameters affect checks for this warning class.

 

To report problems with this documentation, please visit https://support.codesecure.com/.