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std::basic_string<CharT,Traits,Allocator>::ends_with

constexpr bool
    ends_with( std::basic_string_view<CharT, Traits> sv ) const noexcept;
 (1) (since C++20) 
constexpr bool
    ends_with( CharT ch ) const noexcept;
 (2) (since C++20) 
constexpr bool
    ends_with( const CharT* s ) const;
 (3) (since C++20)

Checks if the string ends with the given suffix. The suffix may be one of the following:

1) A string view sv (which may be a result of implicit conversion from another std::basic_string).
2) A single character ch.
3) A null-terminated character string s.

All three overloads effectively return std::basic_string_view<CharT, Traits>(data(), size()).ends_with(x), where x is the parameter.

Parameters

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

Return value

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

Notes

Feature-test macro Value Std Comment
__cpp_lib_starts_ends_with 201711L (C++20) String prefix and suffix checking: starts_with() and ends_with()

Example

#include <cassert>
#include <string>
#include <string_view>
 
int main()
{
    using namespace std::literals;
 
    const auto str = "Hello, C++20!"s;
 
    assert(str.starts_with("He"sv));  // (1)
    assert(!str.starts_with("he"sv)); // (1)
    assert(str.starts_with("He"s));   // (1) implicit conversion string to string_view
    assert(!str.starts_with("he"s));  // (1) implicit conversion string to string_view
    assert(str.starts_with('H'));     // (2)
    assert(!str.starts_with('h'));    // (2)
    assert(str.starts_with("He"));    // (3)
    assert(!str.starts_with("he"));   // (3)
}

See also

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

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