C++ String Library - resize

Description

It resizes the string to a length of n characters.

Declaration

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

void resize (size_t n);

C++11

void resize (size_t n, char c);

Parameters

• n − It is a new string length.

• c − Character used to fill the new character space added to the string.

Return Value

none

Exceptions

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

Example

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

#include <iostream>
#include <string>

int main () {
   std::string str ("Sairamkrishna Mammahe");
   std::cout << str << '\n';

   unsigned sz = str.size();

   str.resize (sz+2,'+');
   std::cout << str << '\n';

   str.resize (14);
   std::cout << str << '\n';
   return 0;
}

The sample output should be like this −

Sairamkrishna Mammahe
Sairamkrishna Mammahe++
Sairamkrishna