1 /* PR c/64637 */
2 /* { dg-do compile } */
3 /* { dg-options "-Wunused" } */
4
5 void g ();
6
7 void
f(int b)8 f (int b)
9 {
10 for (int i = 0; i < b; i + b) /* { dg-warning "28:statement with no effect" } */
11 g ();
12 // PARM_DECLs still don't have a location, don't expect an exact location.
13 for (int i = 0; i < b; b) /* { dg-warning "statement with no effect" } */
14 g ();
15 for (int i = 0; i < b; !i) /* { dg-warning "26:statement with no effect" } */
16 g ();
17 for (!b;;) /* { dg-warning "8:statement with no effect" } */
18 g ();
19 for (;; b * 2) /* { dg-warning "13:statement with no effect" } */
20 g ();
21 ({
22 b / 5; /* { dg-warning "8:statement with no effect" } */
23 b ^ 5;
24 });
25 }
26