possible false positive

[Alan Braddy]

I think the following may be a false positive (or I've misunderstood the MISRA rule):

When defining an array using a defined constant, cppcheck 2.5 (with MISRA rukles enabled) reports a MISRA error 2012-18.8 (variable length arrays shall not be used) if the definition is ibn an external file.
e.g.:
In test.c:

#include <stdint.h>
#include "test.h"

//#define ANUMBER   10u

uint16_t globaltest[ANUMBER];

void foo(void)
{
    uint16_t localtest[ANUMBER];

    for (uint16_t index = 0u; index < ANUMBER; index++)
    {
        globaltest[index]= index;
        localtest[index] = index;
    }
}

with header test.h:

#define ANUMBER 10u

if the #define ANUMBER 10u is in the local C file (uncomment above) everything is fine, if it's in the header it throws the error.

[Alan Braddy]

False alarm - missing include link

[Absol]

what default paths where cppcheck search includes?

[Daniel Marjamäki]

cppcheck does not have default paths.