File: char.bad.verify.cpp

package info (click to toggle)
llvm-toolchain-21 1%3A21.1.7-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,245,064 kB
  • sloc: cpp: 7,619,731; ansic: 1,434,018; asm: 1,058,748; python: 252,740; f90: 94,671; objc: 70,685; lisp: 42,813; pascal: 18,401; sh: 8,601; ml: 5,111; perl: 4,720; makefile: 3,676; awk: 3,523; javascript: 2,409; xml: 892; fortran: 770
file content (70 lines) | stat: -rw-r--r-- 2,327 bytes parent folder | download | duplicates (3)
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
//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//

// XFAIL: FROZEN-CXX03-HEADERS-FIXME

// <string>
//   ... manipulating sequences of any non-array trivial standard-layout types.

#include <string>
#include <type_traits>
#include "test_traits.h"

struct NotTriviallyCopyable {
  int value;
  NotTriviallyCopyable& operator=(const NotTriviallyCopyable& other) {
    value = other.value;
    return *this;
  }
};

struct NotTriviallyDefaultConstructible {
  NotTriviallyDefaultConstructible() : value(3) {}
  int value;
};

struct NotStandardLayout {
public:
  NotStandardLayout() : one(1), two(2) {}
  int sum() const { return one + two; } // silences "unused field 'two' warning"
  int one;

private:
  int two;
};

void f() {
  {
    // array
    typedef char C[3];
    static_assert(std::is_array<C>::value, "");
    std::basic_string<C, test_traits<C> > s;
    // expected-error-re@*:* {{static assertion failed{{.*}}Character type of basic_string must not be an array}}
  }

  {
    // not trivially copyable
    static_assert(!std::is_trivially_copyable<NotTriviallyCopyable>::value, "");
    std::basic_string<NotTriviallyCopyable, test_traits<NotTriviallyCopyable> > s;
    // expected-error-re@*:* {{static assertion failed{{.*}}Character type of basic_string must be trivially copyable}}
  }

  {
    // not trivially default constructible
    static_assert(!std::is_trivially_default_constructible<NotTriviallyDefaultConstructible>::value, "");
    std::basic_string<NotTriviallyDefaultConstructible, test_traits<NotTriviallyDefaultConstructible> > s;
    // expected-error-re@*:* {{static assertion failed{{.*}}Character type of basic_string must be trivially default constructible}}
  }

  {
    // not standard layout
    static_assert(!std::is_standard_layout<NotStandardLayout>::value, "");
    std::basic_string<NotStandardLayout, test_traits<NotStandardLayout> > s;
    // expected-error-re@*:* {{static assertion failed{{.*}}Character type of basic_string must be standard-layout}}
  }
}