C++ String resize() function

by Online Tutorials Library July 22, 2022

C++ String resize()

This function is used to resize the string to the length of k characters.

Syntax

Consider a string object str. To resize the string object, syntax would be :

Parameters

This function contains two parameters.

k : k is number of characters specified in the first parameter. It resizes the string such that string contains k characters.

If k is shorter than the length of the string, string length shortened to the length specified by k, removing all the characters beyond k.

If k is larger than the length of the string, string length extended to the length specified by k.

c : c is a new character to be added in a new space, if k is larger than the length of the string. This is optional parameter.

Return value

It does not return any value.

Example 1

When k is shorter than length of the specified string.

  #include<iostream>  using namespace std;  int main()  {  string str= “tutoraspire”;  cout<<“String is :”<<str<<?n?;  str.resize(4);  cout<<“After resizing, string is “<<str;  return 0;   }   

Example 2

When k is greater than the length of the specified string.

  #include<iostream>  using namespace std;  int  main()  {  string str =”tutoraspire”;  cout<<“String value is :”<<str<<‘n’;  str.resize(19,”tutorial”);  cout<<“After resizing, string value is :”<<str;  return 0;  }   

Output:

String value is TutorAspire After resizing, string value is TutorAspire tutorial

Next TopicC++ Strings