QA·C Help - 3453

	3453	A function could probably be used instead of this function-like macro.

Macro Definition

This macro appears to be in the form of an expression and could therefore, perhaps, be replaced with a function. It is not always practical or convenient to replace function-like macros with functions; but functions are generally safer than macros because type-checking can be enforced on arguments.

Message 3453 is generated for a function-like macro which ...

has at least one parameter
does not contain a # or a ## operator
does not contain { } ; or any keywords (other than type specifiers or type qualifiers)

For example:


/*PRQA S 553,2017,3429 ++*/

#define M1(a, b, c)   ((a) + (b) + (c))       /* Message 3453 */
#define M6(A,B)       ((A)[1] + (B)[2])       /* Message 3453 */

MISRA C:2012 Rules applicable to message 3453:

Dir-4.9 (Advisory)

A function should be used in preference to a function-like macro where they are interchangeable

See also:

3429 A function-like macro is being defined.

QA·C Source Code Analyser 8.1
MISRA C:2012 Compliance Module 1.0
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