Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/warn/Walways-true-3.C @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children | 1830386684a0 |
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// 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" } }