1 // PR c++/70194
2 // { dg-do compile { target c++11 } }
3 // { dg-options "-Wall" }
4 
5 int i;
6 
7 const bool b0 = &i == 0; // { dg-warning "the address of .i. will never be NULL" }
8 constexpr int *p = &i;
9 const bool b1 = p == 0; // { dg-warning "the address of .i. will never be NULL" }
10 const bool b2 = 0 == p; // { dg-warning "the address of .i. will never be NULL" }
11 const bool b3 = p != 0; // { dg-warning "the address of .i. will never be NULL" }
12 const bool b4 = 0 != p; // { dg-warning "the address of .i. will never be NULL" }
13