std::basic_string_view

<string_view> 에 정의되어 있음.
template<     class CharT,     class Traits =std::char_traits<CharT> >class basic_string_view;		(since C++17)

The class template basic_string_view describes an object that can refer to a constant contiguous sequence of char-like objects with the first element of the sequence at position zero.

보통 CharT 상수에 대한 포인터와 크기, 이 두 인자를 받도록 구현한다.

자주 사용되는 문자형 타입에 맞는 정의들을 사용할 수 있다.:

<string_view> 헤더에 정의됨.
Type	Definition
std::string_view	std::basic_string_view<char>
std::wstring_view	std::basic_string_view<wchar_t>
std::u16string_view	std::basic_string_view<char16_t>
std::u32string_view	std::basic_string_view<char32_t>

템플릿 인자

CharT	-	character type
Traits	-	CharTraits class specifying the operations on the character type. Like for basic_string, Traits::char_type must name the same type as CharT or the behavior is undefined.

Member types

Member type	Definition
traits_type	Traits
value_type	CharT
pointer	CharT*
const_pointer	const CharT*
reference	CharT&
const_reference	const CharT&
const_iterator	implementation-defined constant RandomAccessIterator and ContiguousIterator whose value_type is CharT
iterator	const_iterator
reverse_iterator	const_reverse_iterator
const_reverse_iterator	std::reverse_iterator<const_iterator>
size_type	std::size_t
difference_type	std::ptrdiff_t

Note: iterator and const_iterator are the same type because string views are views into constant character sequences.

Member functions

틀:cpp/string/basic string view/dsc constructor틀:cpp/string/basic string view/dsc operator=틀:cpp/string/basic string view/dsc begin틀:cpp/string/basic string view/dsc end틀:cpp/string/basic string view/dsc rbegin틀:cpp/string/basic string view/dsc rend틀:cpp/string/basic string view/dsc operator at틀:cpp/string/basic string view/dsc at틀:cpp/string/basic string view/dsc front틀:cpp/string/basic string view/dsc back틀:cpp/string/basic string view/dsc data틀:cpp/string/basic string view/dsc size틀:cpp/string/basic string view/dsc max size틀:cpp/string/basic string view/dsc empty틀:cpp/string/basic string view/dsc remove prefix틀:cpp/string/basic string view/dsc remove suffix틀:cpp/string/basic string view/dsc swap틀:cpp/string/basic string view/dsc copy틀:cpp/string/basic string view/dsc substr틀:cpp/string/basic string view/dsc compare틀:cpp/string/basic string view/dsc starts with틀:cpp/string/basic string view/dsc ends with틀:cpp/string/basic string view/dsc find틀:cpp/string/basic string view/dsc rfind틀:cpp/string/basic string view/dsc find first of틀:cpp/string/basic string view/dsc find last of틀:cpp/string/basic string view/dsc find first not of틀:cpp/string/basic string view/dsc find last not of틀:cpp/string/basic string view/dsc npos

Iterators

Element access

Capacity

Modifiers

Operations

Constants

Non-member functions

틀:cpp/string/basic string view/dsc operator cmp틀:cpp/string/basic string view/dsc operator ltlt

Input/output

Literals

틀:cpp/string/basic string view/dsc operator""sv

Defined in namespace std::literals::string_view_literals

Helper classes

std::hash<std::string_view> std::hash<std::wstring_view> std::hash<std::u8string_view> std::hash<std::u16string_view> std::hash<std::u32string_view> (C++17) (C++17) (C++20) (C++17) (C++17)

문자열 보기(string views)를 위한 해시 지원 (class template specialization)

Notes

It is the programmer's responsibility to ensure that std::string_view does not outlive the pointed-to character array:

std::string_view good("a string literal");// OK: "good" points to a static array std::string_view bad("a temporary string"s);// "bad" holds a dangling pointer