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

From cppreference.com
< cpp‎ | string‎ | basic string
 
 
 
std::basic_string
 
bool ends_with(std::basic_string_view<CharT, Traits> x) const noexcept;
(1) (since C++20)
bool ends_with(CharT x) const noexcept;
(2) (since C++20)
bool ends_with(const CharT* x) const;
(3) (since C++20)

Checks if the string ends with the given suffix, where

1) the suffix is a string view (which may be a result of implicit conversion from another std::basic_string)
2) the suffix is a single character
3) the suffix is a C-style string

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

Contents

[edit] Parameters

x - a character sequence or a single character to compare to the end of the string

[edit] Return value

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

[edit] Example

#include <iostream>
#include <string_view>
#include <string>
 
template <typename SuffixType>
void test_suffix_print(const std::string& str, SuffixType suffix)
{
    std::cout << '\'' << str << "' ends with '" << suffix << "': " <<
        str.ends_with(suffix) << '\n';
}
 
int main()
{
    std::boolalpha(std::cout);    
    auto helloWorld = std::string("hello world");
 
    test_suffix_print(helloWorld, std::string_view("world"));
 
    test_suffix_print(helloWorld, std::string_view("goodby"));
 
    test_suffix_print(helloWorld, 'd');
 
    test_suffix_print(helloWorld, 'x');
}

Output:

'hello world' ends with 'world': true
'hello world' ends with 'goodby': false
'hello world' ends with 'd': true
'hello world' ends with 'x': false

[edit] See also

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