C++ String Library - back

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Description

It returns a reference to the last character of the string.

Declaration

Following is the declaration for std::string::back.

 char& back(); 

C++11

 const char& back() const; 

Parameters

none

Return Value

It returns a reference to the last character of the string.

Exceptions

if an exception is thrown, there are no changes in the string.

Example

In below example for std::string::back.

 #include <iostream> #include <string> int main () { std::string str ("sairamkrishna mammahe."); str.back() = '!'; std::cout << str << '\n'; return 0; } 

 sairamkrishna mammahe!