File: concepts-requires12.C

package info (click to toggle)
gcc-arm-none-eabi 15%3A14.2.rel1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,099,328 kB
  • sloc: cpp: 3,627,108; ansic: 2,571,498; ada: 834,230; f90: 235,082; makefile: 79,231; asm: 74,984; xml: 51,692; exp: 39,736; sh: 33,298; objc: 15,629; python: 15,069; fortran: 14,429; pascal: 7,003; awk: 5,070; perl: 3,106; ml: 285; lisp: 253; lex: 204; haskell: 135
file content (21 lines) | stat: -rw-r--r-- 383 bytes parent folder | download | duplicates (2) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
// { dg-do compile { target c++20 } }

template <class> struct all_same {
  static constexpr bool value = true;
};

template <class T> 
concept Assignable = requires(T t)
{
  requires all_same<decltype(t = 0)>::value;
};

template <class I> 
  requires (!Assignable<I>)
int dispatch();

template <class I>
  requires Assignable<I>
void dispatch();

int main() { dispatch<int *>(); }