| // PR c++/44444 | |
| // { dg-do compile } | |
| // { dg-options "-Wunused" } | |
| struct S | |
| { | |
| const int &u; | |
| const int &v; | |
| S (const int &a, const int &b) : u(a), v(b) { } | |
| }; | |
| bool | |
| f1 () | |
| { | |
| bool t = false; | |
| S z = S (1, 2); | |
| t |= z.u == 1; | |
| t |= z.v == 2; | |
| return t; | |
| } | |
| void | |
| f2 () | |
| { | |
| S z = S (1, 2); | |
| z.u; // { dg-warning "no effect" } | |
| } | |
| int i; | |
| void | |
| f3 () | |
| { | |
| S z = S (1, 2); | |
| i++, z.u; // { dg-warning "no effect" } | |
| } |