std::basic_string<CharT,Traits,Allocator>::rbegin,std::basic_string<CharT,Traits,Allocator>::crbegin
From cppreference.com
<cpp |string |basic string
C++
std::basic_string
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reverse_iterator rbegin(); | (1) | (noexcept since C++11) (constexpr since C++20) |
const_reverse_iterator rbegin()const; | (2) | (noexcept since C++11) (constexpr since C++20) |
const_reverse_iterator crbegin()constnoexcept; | (3) | (since C++11) (constexpr since C++20) |
Returns a reverse iterator to the first character of the reversed string. It corresponds to the last character of the non-reversed string.
Contents |
[edit]Parameters
(none)
[edit]Return value
Reverse iterator to the first character.
[edit]Complexity
Constant.
[edit]Notes
libc++ backportscrbegin() to C++98 mode.
[edit]Example
Run this code
#include <algorithm>#include <iostream>#include <iterator>#include <string> int main(){std::string s("Exemplar!");*s.rbegin()='y';std::cout<< s<<'\n';// "Exemplary" std::string c;std::copy(s.crbegin(), s.crend(),std::back_inserter(c));std::cout<< c<<'\n';// "yralpmexE"}
Output:
ExemplaryyralpmexE
[edit]See also
(C++11) | returns a reverse iterator to the end (public member function)[edit] |
| returns a reverse iterator to the beginning (public member function of std::basic_string_view<CharT,Traits>)[edit] |
