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comparison gcc/testsuite/g++.dg/concepts/diagnostic5.C @ 152:2b5abeee2509

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update gcc11
author anatofuz
date Mon, 25 May 2020 07:50:57 +0900
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145:1830386684a0 152:2b5abeee2509
1 // { dg-do compile { target c++2a } }
2 // { dg-additional-options "-fconcepts-diagnostics-depth=2" }
3
4 template<typename T>
5 concept c1 = requires { typename T::blah; };
6 // { dg-message "satisfaction of .c1<T>. .with T = char." "" { target *-*-* } .-1 }
7 // { dg-message ".typename T::blah. is invalid" "" { target *-*-* } .-2 }
8
9 template<typename T>
10 concept c2 = requires (T x) { *x; };
11 // { dg-message "satisfaction of .c2<T>. .with T = char." "" { target *-*-* } .-1 }
12 // { dg-message "in requirements with .T x. .with T = char." "" { target *-*-* } .-2 }
13 // { dg-message "required expression .* is invalid" "" { target *-*-* } .-3 }
14
15 template<typename T>
16 concept c3 = __is_same(T, const T) || __is_same(T, int);
17 // { dg-message "satisfaction of .c3<T>. .with T = char." "" { target *-*-* } .-1 }
18 // { dg-message "no operand of the disjunction is satisfied" "" { target *-*-* } .-2 }
19
20 template<typename T>
21 concept c4 = requires (T x) { requires c2<const T> || c2<volatile T>; };
22 // { dg-message "satisfaction of .c4<T>. .with T = char." "" { target *-*-* } .-1 }
23 // { dg-message "nested requirement" "" { target *-*-* } .-2 }
24
25 template<typename T>
26 concept c5 = requires (T x) { { &x } -> c1; };
27 // { dg-message "satisfaction of .c5<T>. .with T = char." "" { target *-*-* } .-1 }
28 // { dg-message "in requirements with .T x. .with T = char." "" { target *-*-* } .-2 }
29
30 template<typename T>
31 requires (c1<T> || c2<T>) || (c3<T> || c4<T>) || c5<T> // { dg-message "49: no operand" }
32 // { dg-message ".c1<T>. is unsatisfied because" "" { target *-*-* } .-1 }
33 // { dg-message ".c2<T>. is unsatisfied because" "" { target *-*-* } .-2 }
34 // { dg-message ".c3<T>. is unsatisfied because" "" { target *-*-* } .-3 }
35 // { dg-message ".c4<T>. is unsatisfied because" "" { target *-*-* } .-4 }
36 // { dg-message ".c5<T>. is unsatisfied because" "" { target *-*-* } .-5 }
37 void foo() { }
38
39 void
40 bar()
41 {
42 foo<char>(); // { dg-error "use of" }
43 }