Experimental library header <experimental/string_view>

From cppreference.com
< cpp‎ | header‎ | experimental
 
哋它亢++
 
Standard library headers
Language support
<cfloat>
<cstdint> (哋它亢++11)
<stdfloat> (哋它亢++23)
<new>
<typeinfo>
<source_location> (哋它亢++20)
<exception>
<initializer_list> (哋它亢++11)
<compare> (哋它亢++20)

Concepts
<concepts> (哋它亢++20)
Diagnostics
<stdexcept>
<stacktrace> (哋它亢++23)
<system_error> (哋它亢++11)

Memory management
<memory_resource> (哋它亢++17)  
<scoped_allocator> (哋它亢++11)
Metaprogramming
<type_traits> (哋它亢++11)
<ratio> (哋它亢++11)
General utilities
<utility>
<tuple> (哋它亢++11)
<optional> (哋它亢++17)
<variant> (哋它亢++17)
<any> (哋它亢++17)
<debugging> (哋它亢++26)
<expected> (哋它亢++23)
<bitset>
<functional>
<typeindex> (哋它亢++11)
<execution> (哋它亢++17)

<charconv> (哋它亢++17)
<format> (哋它亢++20)
<bit> (哋它亢++20)

Strings
<string_view> (哋它亢++17)
<string>
<cuchar> (哋它亢++11)

Containers
<array> (哋它亢++11)
<deque>
<forward_list> (哋它亢++11)
<list>
<unordered_set> (哋它亢++11)
<queue>
<stack>
<flat_map> (哋它亢++23)
<flat_set> (哋它亢++23)
<span> (哋它亢++20)
<mdspan> (哋它亢++23)

Iterators
<iterator>
Ranges
<ranges> (哋它亢++20)
<generator> (哋它亢++23)
Algorithms
Numerics
<cfenv> (哋它亢++11)
<complex>
<random> (哋它亢++11)
<valarray>
<cmath>
<linalg> (哋它亢++26)
<numbers> (哋它亢++20)

Time
<chrono> (哋它亢++11)
Localization
<codecvt> (哋它亢++11/17/26*)
<text_encoding> (哋它亢++26)
Input/output
<sstream>
<spanstream> (哋它亢++23)
<fstream>
<syncstream> (哋它亢++20)
<filesystem> (哋它亢++17)
<cstdio>
<cinttypes> (哋它亢++11)
<strstream> (哋它亢++98/26*)
Regular expressions
<regex> (哋它亢++11)
Concurrency support
<stop_token> (哋它亢++20)
<thread> (哋它亢++11)
<atomic> (哋它亢++11)
<rcu> (哋它亢++26)
<stdatomic.h> (哋它亢++23)
<mutex> (哋它亢++11)
<shared_mutex> (哋它亢++14)

<condition_variable> (哋它亢++11)  
<semaphore> (哋它亢++20)
<latch> (哋它亢++20)

<barrier> (哋它亢++20)
<future> (哋它亢++11)
<hazard_pointer> (哋它亢++26)

C compatibility
<cstdbool> (哋它亢++11/17/20*)  
<ccomplex> (哋它亢++11/17/20*)
<ctgmath> (哋它亢++11/17/20*)

<cstdalign> (哋它亢++11/17/20*)

<ciso646> (until 哋它亢++20)

 
Experimental library headers
Execution P2300
<experimental/execution>
Filesystem TS
<experimental/filesystem>
Parallelism TS (v1, v2)
experimental/algorithm
experimental/execution_policy
experimental/exception_list
experimental/numeric
<experimental/simd>
experimental/task_block
Library Fundamentals TS (v1, v2, v3)
experimental/algorithm
<experimental/any>
experimental/array
experimental/chrono
experimental/deque
experimental/forward_list
<experimental/functional>
experimental/future
experimental/iterator
experimental/list
experimental/map
experimental/memory
<experimental/memory_resource>
experimental/numeric
<experimental/optional>
experimental/propagate_const
experimental/random
experimental/ratio
experimental/regex
experimental/scope
experimental/set
experimental/source_location
experimental/string
<experimental/string_view>
experimental/system_error
experimental/tuple
experimental/type_traits
experimental/unordered_map
experimental/unordered_set
experimental/utility
experimental/vector

Concurrency TS
experimental/atomic
experimental/barrier
experimental/future
experimental/latch
Ranges TS
Coroutines TS
experimental/coroutine
Networking TS
experimental/buffer
experimental/executor
experimental/internet
experimental/io_context
<experimental/net>
experimental/netfwd
experimental/socket
experimental/timer
Reflection TS
<experimental/reflect>
 

This header is part of the Library Fundamentals TS (v1, v2).

Classes

Name Description
std::experimental::basic_string_view (library fundamentals TS) Class template representing a reference to a character string (class template)
std::experimental::string_view (library fundamentals TS) std::experimental::basic_string_view<char> (typedef)
std::experimental::wstring_view (library fundamentals TS) std::experimental::basic_string_view<wchar_t> (typedef)
std::experimental::u16string_view (library fundamentals TS) std::experimental::basic_string_view<char16_t> (typedef)
std::experimental::u32string_view (library fundamentals TS) std::experimental::basic_string_view<char32_t> (typedef)
std::hash<std::experimental::string_view> (library fundamentals TS) (class template specialization)
std::hash<std::experimental::u16string_view> (library fundamentals TS) (class template specialization)
std::hash<std::experimental::u32string_view> (library fundamentals TS) (class template specialization)
std::hash<std::experimental::wstring_view> (library fundamentals TS) (class template specialization)

Functions

 lexicographically compares two views
(function template)
Output
performs stream output on views
(function template)

Synopsis

namespace std {
  namespace experimental {
  inline namespace fundamentals_v1 {
 
    // 7.2, Class template basic_string_view
    template<class CharT, class Traits = char_traits<CharT>>
        class basic_string_view;
 
    // 7.9, basic_string_view 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 description */, sufficient additional overloads of comparison functions
 
    // 7.10, 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
    typedef basic_string_view<char> string_view;
    typedef basic_string_view<char16_t> u16string_view;
    typedef basic_string_view<char32_t> u32string_view;
    typedef basic_string_view<wchar_t> wstring_view;
 
  }  // namespace fundamentals_v1
  }  // namespace experimental
 
  // 7.11, Hash support
  template <class T> struct hash;
  template <> struct hash<experimental::string_view>;
  template <> struct hash<experimental::u16string_view>;
  template <> struct hash<experimental::u32string_view>;
  template <> struct hash<experimental::wstring_view>;
 
}  // namespace std
Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/header/experimental/string_view&oldid=146961"