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

From cppreference.com
 
 
 
 
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

#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

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