-
Notifications
You must be signed in to change notification settings - Fork 0
/
string_view.hpp
55 lines (50 loc) · 2.53 KB
/
string_view.hpp
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
namespace std {
// string.view.template, class template basic_string_view
template<class charT, class traits = char_traits<charT>>
class basic_string_view;
// string.view.comparison, non-member comparison functions
template<class charT, class traits>
constexpr bool operator==(basic_string_view<charT, traits> x,
basic_string_view<charT, traits> y) noexcept;
template<class charT, class traits>
constexpr bool operator!=(basic_string_view<charT, traits> x,
basic_string_view<charT, traits> y) noexcept;
template<class charT, class traits>
constexpr bool operator< (basic_string_view<charT, traits> x,
basic_string_view<charT, traits> y) noexcept;
template<class charT, class traits>
constexpr bool operator> (basic_string_view<charT, traits> x,
basic_string_view<charT, traits> y) noexcept;
template<class charT, class traits>
constexpr bool operator<=(basic_string_view<charT, traits> x,
basic_string_view<charT, traits> y) noexcept;
template<class charT, class traits>
constexpr bool operator>=(basic_string_view<charT, traits> x,
basic_string_view<charT, traits> y) noexcept;
// see string.view.comparison, sufficient additional overloads of comparison functions
// string.view.io, inserters and extractors
template<class charT, class traits>
basic_ostream<charT, traits>&
operator<<(basic_ostream<charT, traits>& os,
basic_string_view<charT, traits> str);
// basic_string_view typedef names
using string_view = basic_string_view<char>;
using u16string_view = basic_string_view<char16_t>;
using u32string_view = basic_string_view<char32_t>;
using wstring_view = basic_string_view<wchar_t>;
// string.view.hash, hash support
template<class T> struct hash;
template<> struct hash<string_view>;
template<> struct hash<u16string_view>;
template<> struct hash<u32string_view>;
template<> struct hash<wstring_view>;
inline namespace literals {
inline namespace string_view_literals {
// string.view.literals, suffix for basic_string_view literals
constexpr string_view operator""sv(const char* str, size_t len) noexcept;
constexpr u16string_view operator""sv(const char16_t* str, size_t len) noexcept;
constexpr u32string_view operator""sv(const char32_t* str, size_t len) noexcept;
constexpr wstring_view operator""sv(const wchar_t* str, size_t len) noexcept;
}
}
}