Skip to main content

IAR Embedded Workbench for Arm 9.70.x

MISRAC2012-Rule-13.4_b

In this section:
Synopsis

(Advisory) The result of an assignment operator should not be used

Enabled by default

No

Severity/Certainty

Low/Medium

lowmedium.png
Full description

Assignments were found in a sub-expression. This check is identical to MISRAC++2008-6-2-1, MISRAC++2023-8.18.2.

Coding standards
MISRA C++ 2008 6-2-1

(Required) Assignment operators shall not be used in sub-expressions.

MISRA C++ 2023 8.18.2

(Advisory) The result of an assignment operator should not be used

Code examples

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

void func()
{
  int x;
  int y;
  int z;
  x = y = z;
}

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

void func()
{
  int x = 2;
  int y;
  int z;
  x = y;
  x == y;
}