3326			The result of an assignment is being used in a logical operation.
	Arithmetic type - Operations

• The operand of a relational operator ( < > <= >= )
• The operand of an equality operator ( == != )
• The operand of a logical operator (! && || )
• The first operand of a conditional operator ( ? : )
• The controlling expression of an if statement
• The controlling expression of a for statement
• The controlling expression of an while statement
• The controlling expression of a do ... while statement

/*PRQA S 2017,3120,3198,3199,3227,3314,3344,3408,3415,3416,3447 ++*/

extern int i;

extern void foo(int m, int n)
{
    int r;

    r = !(i = 1);                       /* Message 3326 */

    r = n <  (i = n);                   /* Message 3326 */
    r = n <= (i = n);                   /* Message 3326 */
    r = n >  (i = n);                   /* Message 3326 */
    r = n >= (i = n);                   /* Message 3326 */
    r = n == (i = n);                   /* Message 3326 */
    r = n != (i = n);                   /* Message 3326 */
    r = n && (i = n);                   /* Message 3326 */
    r = n || (i = n);                   /* Message 3326 */
    r = (i = n) ? n : 0;                /* Message 3326 */

    if (r = n)                          /* Message 3326 */
    {
    }

    while (r = m)                       /* Message 3326 */
    {
        --r;
    }

}

MISRA-C:2004 Rules applicable to message 3326:

See also:

• 3226 The result of an assignment is being used in an arithmetic operation or another assigning operation.