File: is_nothrow_convertible.pass.cpp

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-6~deb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,418,812 kB
  • sloc: cpp: 5,290,827; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,900; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,892; xml: 953; cs: 573; fortran: 539
file content (60 lines) | stat: -rw-r--r-- 2,148 bytes parent folder | download | duplicates (22)
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
60
//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//

// <type_traits>
// UNSUPPORTED: c++03, c++11, c++14, c++17

#include <type_traits>

#include "test_macros.h"

struct A {};
struct B {
public:
    operator A() { return a; } A a;
};

class C { };
class D {
public:
    operator C() noexcept { return c; } C c;
};

int main(int, char**) {
    static_assert((std::is_nothrow_convertible<int, double>::value), "");
    static_assert(!(std::is_nothrow_convertible<int, char*>::value), "");

    static_assert(!(std::is_nothrow_convertible<A, B>::value), "");
    static_assert((std::is_nothrow_convertible<D, C>::value), "");

    static_assert((std::is_nothrow_convertible_v<int, double>), "");
    static_assert(!(std::is_nothrow_convertible_v<int, char*>), "");

    static_assert(!(std::is_nothrow_convertible_v<A, B>), "");
    static_assert((std::is_nothrow_convertible_v<D, C>), "");

    static_assert((std::is_nothrow_convertible_v<const void, void>), "");
    static_assert((std::is_nothrow_convertible_v<volatile void, void>), "");
    static_assert((std::is_nothrow_convertible_v<void, const void>), "");
    static_assert((std::is_nothrow_convertible_v<void, volatile void>), "");

    static_assert(!(std::is_nothrow_convertible_v<int[], double[]>), "");
    static_assert(!(std::is_nothrow_convertible_v<int[], int[]>), "");
    static_assert(!(std::is_nothrow_convertible_v<int[10], int[10]>), "");
    static_assert(!(std::is_nothrow_convertible_v<int[10], double[10]>), "");
    static_assert(!(std::is_nothrow_convertible_v<int[5], double[10]>), "");
    static_assert(!(std::is_nothrow_convertible_v<int[10], A[10]>), "");

    typedef void V();
    typedef int I();
    static_assert(!(std::is_nothrow_convertible_v<V, V>), "");
    static_assert(!(std::is_nothrow_convertible_v<V, I>), "");

    return 0;
}