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
|
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
// <string_view>
// constexpr bool starts_with(const CharT *x) const;
#include <string_view>
#include <cassert>
#include "test_macros.h"
#include "constexpr_char_traits.hpp"
int main()
{
{
typedef std::string_view SV;
const char *s = "abcde";
SV sv0 {};
SV sv1 { s + 4, 1 };
SV sv2 { s + 3, 2 };
// SV sv3 { s + 2, 3 };
// SV sv4 { s + 1, 4 };
// SV sv5 { s , 5 };
SV svNot {"def", 3 };
LIBCPP_ASSERT_NOEXCEPT(sv0.ends_with(""));
assert ( sv0.ends_with(""));
assert (!sv0.ends_with("e"));
assert ( sv1.ends_with(""));
assert ( sv1.ends_with("e"));
assert (!sv1.ends_with("de"));
assert (!sv1.ends_with("cde"));
assert (!sv1.ends_with("bcde"));
assert (!sv1.ends_with("abcde"));
assert (!sv1.ends_with("def"));
assert ( sv2.ends_with(""));
assert ( sv2.ends_with("e"));
assert ( sv2.ends_with("de"));
assert (!sv2.ends_with("cde"));
assert (!sv2.ends_with("bcde"));
assert (!sv2.ends_with("abcde"));
assert (!sv2.ends_with("def"));
assert ( svNot.ends_with(""));
assert (!svNot.ends_with("e"));
assert (!svNot.ends_with("de"));
assert (!svNot.ends_with("cde"));
assert (!svNot.ends_with("bcde"));
assert (!svNot.ends_with("abcde"));
assert ( svNot.ends_with("def"));
}
#if TEST_STD_VER > 11
{
typedef std::basic_string_view<char, constexpr_char_traits<char>> SV;
constexpr const char *s = "abcde";
constexpr SV sv0 {};
constexpr SV sv1 { s + 4, 1 };
constexpr SV sv2 { s + 3, 2 };
// constexpr SV sv3 { s + 2, 3 };
// constexpr SV sv4 { s + 1, 4 };
// constexpr SV sv5 { s, 5 };
constexpr SV svNot {"def", 3 };
static_assert ( sv0.ends_with(""), "" );
static_assert (!sv0.ends_with("e"), "" );
static_assert ( sv1.ends_with(""), "" );
static_assert ( sv1.ends_with("e"), "" );
static_assert (!sv1.ends_with("de"), "" );
static_assert (!sv1.ends_with("cde"), "" );
static_assert (!sv1.ends_with("bcde"), "" );
static_assert (!sv1.ends_with("abcde"), "" );
static_assert (!sv1.ends_with("def"), "" );
static_assert ( sv2.ends_with(""), "" );
static_assert ( sv2.ends_with("e"), "" );
static_assert ( sv2.ends_with("de"), "" );
static_assert (!sv2.ends_with("cde"), "" );
static_assert (!sv2.ends_with("bcde"), "" );
static_assert (!sv2.ends_with("abcde"), "" );
static_assert (!sv2.ends_with("def"), "" );
static_assert ( svNot.ends_with(""), "" );
static_assert (!svNot.ends_with("e"), "" );
static_assert (!svNot.ends_with("de"), "" );
static_assert (!svNot.ends_with("cde"), "" );
static_assert (!svNot.ends_with("bcde"), "" );
static_assert (!svNot.ends_with("abcde"), "" );
static_assert ( svNot.ends_with("def"), "" );
}
#endif
}
|
