1 // PR c++/65398
2 // { dg-do compile { target c++11 } }
3 
4 #define SA(X) static_assert((X),#X)
5 
6 constexpr char s[] = "abc";
7 
8 SA((&s[0] + 0) == (&s[0] + 0));
9 SA((&s[0] + 1) == (&s[1] + 0));
10 SA((&s[0] + 2) == (&s[1] + 1));
11 SA((&s[0] + 3) == (&s[1] + 2));
12 SA((&s[0] + 4) == (&s[1] + 3));
13 SA((&s[2] + 0) == (&s[0] + 2));
14 SA((&s[2] + 1) == (&s[3] + 0));
15 SA((&s[2] + 2) == (&s[3] + 1));
16 SA((&s[4] + 0) == (&s[2] + 2));
17 
18 SA((&s[0] + 0) != (&s[1] + 0));
19 SA((&s[0] + 2) != (&s[1] + 0));
20 SA((&s[2] + 0) != (&s[2] + 1));
21 SA((&s[1] + 1) != (&s[0] + 1));
22 
23 constexpr int l[] = { 'c', 'd', 'e', '\0' };
24 
25 SA((&l[0] + 0) == (&l[0] + 0));
26 SA((&l[0] + 1) == (&l[1] + 0));
27 SA((&l[0] + 2) == (&l[1] + 1));
28 SA((&l[0] + 3) == (&l[1] + 2));
29 SA((&l[0] + 4) == (&l[1] + 3));
30 SA((&l[2] + 0) == (&l[0] + 2));
31 SA((&l[2] + 1) == (&l[3] + 0));
32 SA((&l[2] + 2) == (&l[3] + 1));
33 SA((&l[4] + 0) == (&l[2] + 2));
34 
35 SA((&l[0] + 0) != (&l[1] + 0));
36 SA((&l[0] + 2) != (&l[1] + 0));
37 SA((&l[2] + 0) != (&l[2] + 1));
38 SA((&l[1] + 1) != (&l[0] + 1));
39