Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/warn/Walways-true-3.C @ 111:04ced10e8804
gcc 7
author | kono |
---|---|
date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | |
children | 1830386684a0 |
line wrap: on
line source
// PR c++/65168 // { dg-options "-Waddress" } void foo (void); int d; int &c = d; void bar (int &a) { int &b = a; if ((int *)&a) // { dg-warning "address of" } foo (); if (&b) // { dg-warning "address of" } foo (); if (!&c) // { dg-warning "address of" } foo (); if (!&(int &)(int &)a) // { dg-warning "address of" } foo (); if (&a == 0) // { dg-warning "never be NULL" } foo (); if (&b != 0) // { dg-warning "never be NULL" } foo (); if (0 == &(int &)(int &)c) // { dg-warning "never be NULL" } foo (); if (&a != (int *)0) // { dg-warning "never be NULL" } foo (); } bool bar_1 (int &a) { if (d == 5) return &a; // { dg-warning "address of" } else return !&(int &)(int &)a; // { dg-warning "address of" } }