File: p4-2a.cpp

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (59 lines) | stat: -rw-r--r-- 1,311 bytes parent folder | download | duplicates (15)
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
54
55
56
57
58
59
// RUN:  %clang_cc1 -std=c++2a -verify %s

template<typename T, typename U>
constexpr static bool is_same_v = false;

template<typename T>
constexpr static bool is_same_v<T, T> = true;

template<typename T>
concept AtLeast2 = sizeof(T) >= 2;

template<typename T>
concept AtMost8 = sizeof(T) <= 8;

template<typename T>
struct S {
static int foo() requires AtLeast2<long> && AtMost8<long> {
  return 0;
}

static double foo() requires AtLeast2<char> {
  return 0.0;
}

static char bar() requires AtLeast2<char> {
  return 1.0;
}

static short bar() requires AtLeast2<long> && AtMost8<long> {
  return 0.0;
}

static int bar() requires AtMost8<long> && AtLeast2<long> {
  return 0.0;
}

static char baz() requires AtLeast2<char> {
  return 1.0;
}

static short baz() requires AtLeast2<long> && AtMost8<long> {
  return 0.0;
}

static int baz() requires AtMost8<long> && AtLeast2<long> {
  return 0.0;
}

static long baz() requires AtMost8<long> && AtLeast2<long> && AtLeast2<short> {
  return 3.0;
}
};

void a() {
  static_assert(is_same_v<decltype(&S<int>::foo), int(*)()>);
  static_assert(is_same_v<decltype(&S<int>::bar), long(*)()>);
  // expected-error@-1{{reference to overloaded function could not be resolved; did you mean to call it?}}
  static_assert(is_same_v<decltype(&S<int>::baz), long(*)()>);
}