False positive: [preprocessorErrorDirective]

[Fan Zhang]

#include <stdio.h>

#define CAT_HELP(A,B)   A##B
#define CAT(A,B)        CAT_HELP(A,B)

#define NAME(ID)        CAT(bc,ID)
#define FUNC_NAME(ID)   CAT(NAME(ID),_handler)

// void CAT(NAME(module_1),_handler)() // Changing to this makes the error disappear
void FUNC_NAME(module_1)()
{
    printf("Hello\n");
}

int main()
{
    bcmodule_1_handler();
}

Cppcheck outputs:

Checking ..\test.c ...
..\test.c:3:0: error: failed to expand 'FUNC_NAME', Invalid ## usage when expanding 'CAT_HELP': Unexpected token ')' [preprocessorErrorDirective]
#define CAT_HELP(A,B)   A##B
^

[Paul Fultz]

This might be related to this issue: https://trac.cppcheck.net/ticket/10783