[previous] 0811 [next] [C] The glue operator '##' may only appear in a '#define' preprocessing directive.
Constraint violations REFERENCE - ISO:C90-6.1.5 Operators - Constraints

This is a constraint error

The glue operator, ##, can only be used in a #define directive. Its function is to join the 2 tokens on either side of it.

For example: 


/*PRQA S 752,2017,3122,3408,3429,3447,3625 ++*/

#define GLUE(A,B) A##B

extern void foo(int p);
extern int  abcdef;

void ft(void)
{
    foo( GLUE( abc, def ) );        /* OK */
    foo( abc ## def );              /* Message 0811 and others */
}

MISRA C:2012 Rules applicable to message 0811:

Rule-1.1  (Required) The program shall contain no violations of the standard C syntax and constraints, and shall not exceed the implementation's translation limits

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