std::basic_string_view<CharT,Traits>::ends_with

 

C++

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Freestanding and hosted

Language

Standard library headers

Named requirements

Feature test macros (C++20)

Language support library

Concepts library (C++20)

Metaprogramming library (C++11)

Diagnostics library

General utilities library

Strings library

Containers library

Iterators library

Ranges library (C++20)

Algorithms library

Numerics library

Localizations library

Input/output library

Filesystem library (C++17)

Regular expressions library (C++11)

Concurrency support library (C++11)

Technical specifications

Symbols index

External libraries

 

Strings library

Null-terminated strings

Byte strings

Multibyte strings

Wide strings

Classes

basic_string

basic_string_view (C++17)

char_traits

 

std::basic_string_view

Member functions basic_string_view::basic_string_view    basic_string_view::operator= Iterators basic_string_view::beginbasic_string_view::cbegin basic_string_view::endbasic_string_view::cend basic_string_view::rbeginbasic_string_view::crbegin basic_string_view::rendbasic_string_view::crend Element access basic_string_view::at basic_string_view::operator[] basic_string_view::front basic_string_view::back basic_string_view::data Capacity basic_string_view::sizebasic_string_view::length basic_string_view::max_size basic_string_view::empty Modifiers basic_string_view::remove_prefix basic_string_view::remove_suffix basic_string_view::swap

Operations basic_string_view::copy basic_string_view::substr basic_string_view::compare basic_string_view::starts_with (C++20) basic_string_view::ends_with (C++20) basic_string_view::contains (C++23) basic_string_view::find basic_string_view::rfind basic_string_view::find_first_of basic_string_view::find_last_of basic_string_view::find_first_not_of basic_string_view::find_last_not_of Constants basic_string_view::npos Non-member functions operator==operator!=operator<operator>operator<=operator>=operator<=> (until C++20)(until C++20)(until C++20)(until C++20)(until C++20)(C++20) operator<< operator""sv Helper classes hash<std::string_view>hash<std::wstring_view>hash<std::u8string_view>hash<std::u16string_view>hash<std::u32string_view> (C++20) Deduction guides(C++20)

 

constexpr bool ends_with( basic_string_view sv ) const noexcept;	(1)	(since C++20)
constexpr bool ends_with( CharT c ) const noexcept;	(2)	(since C++20)
constexpr bool ends_with( const CharT* s ) const;	(3)	(since C++20)

Checks if the string view ends with the given suffix, where

1) the suffix is a string view. Effectively returns size() >= sv.size() && compare(size() - sv.size(), npos, sv) == 0

2) the suffix is a single character. Effectively returns !empty() && Traits::eq(back(), c)

3) the suffix is a null-terminated character string. Effectively returns ends_with(basic_string_view(s))

Parameters

sv	-	a string view which may be a result of implicit conversion from std::basic_string
c	-	a single character
s	-	a null-terminated character string

Return value

true if the string view ends with the provided suffix, false otherwise.

Notes

Feature-test macro:

__cpp_lib_starts_ends_with

Example

Run this code

#include <iostream>
#include <string_view>
 
auto main() -> int
{
    using namespace std::literals;
 
    std::cout
        << std::boolalpha
 
        // (1) bool ends_with( basic_string_view sv ) const noexcept;
        << std::string_view("https://cppreference.com").ends_with(".com"sv) << ' ' // true
        << std::string_view("https://cppreference.com").ends_with(".org"sv) << ' ' // false
 
        // (2) bool ends_with( CharT c ) const noexcept;
        << std::string_view("C++20").ends_with('0') << ' ' // true
        << std::string_view("C++20").ends_with('3') << ' ' // false
 
        // (3) bool ends_with( const CharT* s ) const;
        << std::string_view("string_view").ends_with("view") << ' ' // true
        << std::string_view("string_view").ends_with("View") << ' ' // false
        << '\n';
}

Output:

true false true false true false

See also

starts_with (C++20)	checks if the string view starts with the given prefix (public member function)
starts_with (C++20)	checks if the string starts with the given prefix (public member function of std::basic_string<CharT,Traits,Allocator>)
ends_with (C++20)	checks if the string ends with the given suffix (public member function of std::basic_string<CharT,Traits,Allocator>)
contains (C++23)	checks if the string contains the given substring or character (public member function of std::basic_string<CharT,Traits,Allocator>)
contains (C++23)	checks if the string view contains the given substring or character (public member function)
compare (C++17)	compares two views (public member function)