suppression in macros not working

[Richard Smith]

I'm trying to use the suppression in macro feature described here in cppcheck 2.15

https://trac.cppcheck.net/ticket/3537

We have a macro looks like the following:

#define MSG_UPCAST(ptr) ((msg_t *) (ptr))

Which is used like this:

send_msg(MSG_UPCAST(&msg), sizeof(msg))

This is a MISRA 11.3 deviation but we want to suppress it.

I've added the following to the macro

#define MSG_UPCAST(ptr) /* misra-c2012-11.3 */ ((msg_t *) (ptr))

But I still get the MISRA deviation message.

[Richard Smith]

Oops sorry that should be:

#define MSG_UPCAST(ptr) /* cppcheck-suppress misra-c2012-11.3 */ ((msg_t *) (ptr))

[Richard Smith]

But I still get the deviation message

[Daniel Marjamäki]

We don't use the exact syntax suggested in ticket 3537. See manual at page 18:
https://cppcheck.sourceforge.io/manual.pdf

The syntax is supposed to be something like:

// cppcheck-suppress-macro aaaa
#define MACRO ...
...
x = MACRO; // <- aaaa warnings are suppressed here

Does this work for you?

[Richard Smith]

Yes. This works. Thank you. I was only looking at the commit message which only includes the track ticket so I thought that was the accepted format.