std::basic_string_view<CharT,Traits>::ends_with
From cppreference.com
< cpp | string | basic string view
constexprbool ends_with( basic_string_view sv )constnoexcept; | (1) | (since C++20) |
constexprbool ends_with( CharT ch )constnoexcept; | (2) | (since C++20) |
constexprbool 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(), ch).
3) the suffix is a null-terminated character string. Effectively returns ends_with(basic_string_view(s)).
Contents |
[edit]Parameters
sv | - | a string view which may be a result of implicit conversion from std::basic_string |
ch | - | a single character |
s | - | a null-terminated character string |
[edit]Return value
true if the string view ends with the provided suffix, false otherwise.
[edit]Notes
Feature-test macro | Value | Std | Feature |
---|---|---|---|
__cpp_lib_starts_ends_with | 201711L | (C++20) | String prefix and suffix checking: starts_with() and ends_with() |
[edit]Example
Run this code
#include <cassert>#include <string_view> int main(){usingnamespace std::literals; assert(""// (1) ends_with( basic_string_view sv )&&std::string_view("https://cppreference.com").ends_with(".com"sv)==true&&std::string_view("https://cppreference.com").ends_with(".org"sv)==false // (2) ends_with( CharT c )&&std::string_view("C++20").ends_with('0')==true&&std::string_view("C++20").ends_with('3')==false // (3) ends_with( const CharT* s )&&std::string_view("string_view").ends_with("view")==true&&std::string_view("string_view").ends_with("View")==false);}
[edit]See also
(C++20) | checks if the string view starts with the given prefix (public member function) |
(C++20) | 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) |
compares two views (public member function) |