LANG.PREPROC.IF : Use of #if

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A use of the #if preprocessor directive.

Many coding standards forbid the use of #if because it makes code harder for human readers to understand.

Class Name

Use of #if

Significance

style

Mnemonic

LANG.PREPROC.IF

Categories

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.
CWE	CWE:1076	Insufficient Adherence to Expected Conventions
JSF++	JSF++:26	Only the following pre-processor directives shall be used: #ifndef, #define, #endif, #include.
POW10	POW10:8	Limit the use of the preprocessor to file inclusion and simple 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 #if"

#if 0      /* 'Use of #if' warning issued here */
int unused;
#endif              /* ('Use of #endif' warning issued here if enabled) */

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

LANG.PREPROC.IF : Use of #if

Summary

Properties

Example

Relevant Configuration File Parameters