Skip to main content

IAR Embedded Workbench for RX 5.20

MISRAC2004-19.6

In this section:
Synopsis

(Required) #undef shall not be used.

Enabled by default

Yes

Severity/Certainty

Low/Low

lowlow.png
Full description

#undef directives were found. This check is identical to MISRAC++2008-16-0-3, MISRAC2012-Rule-20.5.

Coding standards
MISRA C:2004 19.6

(Required) #undef shall not be used.

MISRA C:2012 Rule-20.5

(Advisory) #undef should not be used

MISRA C++ 2008 16-0-3

(Required) #undef shall not be used.

Code examples

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

#define SYM
#undef SYM

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

#define SYM