3422			Statement contains a redundant operator at top level.
	Redundancy

/*PRQA S 489,506,2017,3199,3203,3227,3401,3408,3416,3440,3447,3602 ++*/

extern int f1(void);

extern void foo(int x, int *p)
{
    int r;

    x == f1();      /* Message 3422 - equality operation is redundant */

    x + *(p++);     /* Message 3422 - addition and dereference operations are redundant */

    (long)(r = x ); /* Message 3423 - cast is redundant */

    x == *p;        /* Message 3112 - all operations are redundant - statement has no side effect */

    *p++;           /* Message 3404 - dereference operation is redundant */

    (*p)++;         /* OK */

}

See also:

• 3112 This statement has no side-effect - it can be removed.
• 3404 Statement contains a redundant * operator at top level. *p++ means *(p++) not (*p)++.
• 3423 Statement contains a redundant cast at top level.
• 3424 Statement contains a redundant & or | at top level.