File: deduct.pass.cpp

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm-proposed-updates
  • size: 1,998,492 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (31 lines) | stat: -rw-r--r-- 1,065 bytes parent folder | download | duplicates (17) 
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
 
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

// UNSUPPORTED: c++03, c++11, c++14

// <functional>

// template <class T>
//   reference_wrapper(T&) -> reference_wrapper<T>;

#include <functional>

int main(int, char**) {
    int i = 0;
    std::reference_wrapper ri(i);
    static_assert(std::is_same_v<decltype(ri), std::reference_wrapper<int>>);
    std::reference_wrapper ri2(ri);
    static_assert(std::is_same_v<decltype(ri2), std::reference_wrapper<int>>);
    const int j = 0;
    std::reference_wrapper rj(j);
    static_assert(std::is_same_v<decltype(rj), std::reference_wrapper<const int>>);
    std::reference_wrapper rj2(rj);
    static_assert(std::is_same_v<decltype(rj2), std::reference_wrapper<const int>>);

    return 0;
}