Problem with preprocessor

[pozzugno]

I tested the following source file:

#include <stdio.h>

#define __SAMC21N18A__
#define SAM_PART_IS_DEFINED(part)       (defined(__ ## part ## __))

#define SAM     SAM_PART_IS_DEFINED(SAMC21N18A)


int main()
{
#if SAM
    printf("Hello World");
#endif

    return 0;
}

gcc compiles it and the application shows "Hello World" as expected. However, when I analyze this file with cppcheck I obtain the following:

cppcheck -E main.c

int main ( )
{

return 0 ;
}

I'm using Cppcheck 2.8 under Windows. The macro SAM_PART_IS_DEFINED() is derived from a third party library from Atmel/Microchip. See here.

[Daniel Marjamäki]

could you create a ticket here:
https://github.com/danmar/simplecpp/issues