File: copy.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 (104 lines) | stat: -rw-r--r-- 2,603 bytes parent folder | download | duplicates (6)
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
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
//===----------------------------------------------------------------------===//
//
// 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

// Throwing bad_any_cast is supported starting in macosx10.13
// XFAIL: use_system_cxx_lib && target={{.+}}-apple-macosx10.{{9|10|11|12}} && !no-exceptions

// <any>

// any(any const &);

#include <any>
#include <cassert>

#include "any_helpers.h"
#include "count_new.h"
#include "test_macros.h"

using std::any;
using std::any_cast;

template <class Type>
void test_copy_throws() {
#if !defined(TEST_HAS_NO_EXCEPTIONS)
    assert(Type::count == 0);
    {
        any const a((Type(42)));
        assert(Type::count == 1);
        try {
            any const a2(a);
            assert(false);
        } catch (my_any_exception const &) {
            // do nothing
        } catch (...) {
            assert(false);
        }
        assert(Type::count == 1);
        assertContains<Type>(a, 42);
    }
    assert(Type::count == 0);
#endif
}

void test_copy_empty() {
    DisableAllocationGuard g; ((void)g); // No allocations should occur.
    any a1;
    any a2(a1);

    assertEmpty(a1);
    assertEmpty(a2);
}

template <class Type>
void test_copy()
{
    // Copying small types should not perform any allocations.
    DisableAllocationGuard g(isSmallType<Type>()); ((void)g);
    assert(Type::count == 0);
    Type::reset();
    {
        any a((Type(42)));
        assert(Type::count == 1);
        assert(Type::copied == 0);

        any a2(a);

        assert(Type::copied == 1);
        assert(Type::count == 2);
        assertContains<Type>(a, 42);
        assertContains<Type>(a2, 42);

        // Modify a and check that a2 is unchanged
        modifyValue<Type>(a, -1);
        assertContains<Type>(a, -1);
        assertContains<Type>(a2, 42);

        // modify a2 and check that a is unchanged
        modifyValue<Type>(a2, 999);
        assertContains<Type>(a, -1);
        assertContains<Type>(a2, 999);

        // clear a and check that a2 is unchanged
        a.reset();
        assertEmpty(a);
        assertContains<Type>(a2, 999);
    }
    assert(Type::count == 0);
}

int main(int, char**) {
    test_copy<small>();
    test_copy<large>();
    test_copy_empty();
    test_copy_throws<small_throws_on_copy>();
    test_copy_throws<large_throws_on_copy>();

  return 0;
}