C++ tutorial-replace() function

C++ String Manipulation

C++ replace() function

You can use the replace() function to replace a substring by a new string in an invoking string. The replace() function has two forms. The first form can be used to replace a substring(starting from start argument and expanding for num_chars argument) in the invoking string by the entire content of the new string. The second form only takes a proportion of the new string content to replace the substring.


replace(start, num_chars, new_string, start_in_new_string, num_chars);


#include <cstdlib>
#include <iostream>
#include <conio.h>

using namespace std;

void strmanip(){

  string str="C++ code";
  str.replace(4,4,"Programming");//replace "code" with "Programming"
  str.replace(0,3,"C Programming",0,1);//replace "C++" with "C"


int main(){

  return 0;



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