Synopsis

(Required) A macro parameter immediately following a # operator shall not immediately be followed by a ## operator.

Enabled by default

Yes

Severity/Certainty

Medium/Medium

Full description

A macro parameter immediately following a # was found that is immediately followed by a ##.

Note: This check is not part of C-STAT® but detected by the IAR compiler.

Coding standards

Code examples

The following code example fails the check and will give a warning:

#define AAA( a, b ) #a ## b

#define BBB 1

#define CCC( a, b ) BBB + ( #a ## b )

The following code example passes the check and will not give a warning about this issue:

#define AAA( a ) #a

#define BBB( a, b ) a ## b