blob: b40c77e70a19404fa7502cb2c587f74cfebdabcc (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
// RUN: %clang_cc1 -std=c++2a -fconcepts-ts -x c++ -verify %s
template<typename T> requires sizeof(T) >= 4
bool a = false; // expected-note{{template is declared here}}
template<typename T> requires sizeof(T) >= 4 && sizeof(T) <= 10
bool a<T> = true; // expected-error{{variable template partial specialization is not more specialized than the primary template}}
template<typename T>
concept C1 = sizeof(T) >= 4;
template<typename T> requires C1<T>
bool b = false;
template<typename T> requires C1<T> && sizeof(T) <= 10
bool b<T> = true;
template<typename T>
concept C2 = sizeof(T) > 1 && sizeof(T) <= 8;
template<typename T>
bool c = false;
template<typename T> requires C1<T>
bool c<T> = true;
template<typename T>
bool d = false;
template<typename T>
bool d<T> = true; // expected-error{{variable template partial specialization does not specialize any template argument; to define the primary template, remove the template argument list}}
template<typename T> requires C1<T>
bool e = false;
template<typename T>
bool e<T> = true; // expected-error{{variable template partial specialization does not specialize any template argument; to define the primary template, remove the template argument list}}
template<typename T>
constexpr int f = 1;
template<typename T> requires C1<T> && C2<T>
constexpr int f<T> = 2;
template<typename T> requires C1<T> || C2<T>
constexpr int f<T> = 3;
static_assert(f<unsigned> == 2);
static_assert(f<char[10]> == 3);
static_assert(f<char> == 1);
|
