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
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// test:
// template <class charT, class traits, class Allocator>
// basic_string<charT, traits, Allocator>
// to_string(charT zero = charT('0'), charT one = charT('1')) const; // constexpr since C++23
//
// template <class charT, class traits>
// basic_string<charT, traits, allocator<charT> > to_string() const; // constexpr since C++23
//
// template <class charT>
// basic_string<charT, char_traits<charT>, allocator<charT> > to_string() const; // constexpr since C++23
//
// basic_string<char, char_traits<char>, allocator<char> > to_string() const; // constexpr since C++23
#include <bitset>
#include <cassert>
#include <cstddef>
#include <memory> // for std::allocator
#include <string>
#include <vector>
#include "../bitset_test_cases.h"
#include "test_macros.h"
template <class CharT, std::size_t N>
TEST_CONSTEXPR_CXX23 void check_equal(std::basic_string<CharT> const& s, std::bitset<N> const& b, CharT zero, CharT one) {
assert(s.size() == b.size());
for (std::size_t i = 0; i < b.size(); ++i) {
if (b[i]) {
assert(s[b.size() - 1 - i] == one);
} else {
assert(s[b.size() - 1 - i] == zero);
}
}
}
template <std::size_t N>
TEST_CONSTEXPR_CXX23 bool test_to_string() {
std::vector<std::bitset<N> > const cases = get_test_cases<N>();
for (std::size_t c = 0; c != cases.size(); ++c) {
std::bitset<N> const v = cases[c];
#ifndef TEST_HAS_NO_WIDE_CHARACTERS
{
std::wstring s = v.template to_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> >();
check_equal(s, v, L'0', L'1');
}
{
std::wstring s = v.template to_string<wchar_t, std::char_traits<wchar_t> >();
check_equal(s, v, L'0', L'1');
}
#endif
{
std::string s = v.template to_string<char>();
check_equal(s, v, '0', '1');
}
{
std::string s = v.to_string();
check_equal(s, v, '0', '1');
}
#ifndef TEST_HAS_NO_WIDE_CHARACTERS
{
std::wstring s = v.template to_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> >('0');
check_equal(s, v, L'0', L'1');
}
{
std::wstring s = v.template to_string<wchar_t, std::char_traits<wchar_t> >('0');
check_equal(s, v, L'0', L'1');
}
#endif
{
std::string s = v.template to_string<char>('0');
check_equal(s, v, '0', '1');
}
{
std::string s = v.to_string('0');
check_equal(s, v, '0', '1');
}
#ifndef TEST_HAS_NO_WIDE_CHARACTERS
{
std::wstring s = v.template to_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> >('0', '1');
check_equal(s, v, L'0', L'1');
}
{
std::wstring s = v.template to_string<wchar_t, std::char_traits<wchar_t> >('0', '1');
check_equal(s, v, L'0', L'1');
}
#endif
{
std::string s = v.template to_string<char>('0', '1');
check_equal(s, v, '0', '1');
}
{
std::string s = v.to_string('0', '1');
check_equal(s, v, '0', '1');
}
{
std::string s = v.to_string('x', 'y');
check_equal(s, v, 'x', 'y');
}
}
return true;
}
int main(int, char**) {
test_to_string<0>();
test_to_string<1>();
test_to_string<31>();
test_to_string<32>();
test_to_string<33>();
test_to_string<63>();
test_to_string<64>();
test_to_string<65>();
test_to_string<1000>(); // not in constexpr because of constexpr evaluation step limits
#if TEST_STD_VER > 20
static_assert(test_to_string<0>());
static_assert(test_to_string<1>());
static_assert(test_to_string<31>());
static_assert(test_to_string<32>());
static_assert(test_to_string<33>());
static_assert(test_to_string<63>());
static_assert(test_to_string<64>());
static_assert(test_to_string<65>());
#endif
return 0;
}
|
