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How to convert a character to string in C++ STL?

C++ STL | converting a character to string: In this article we are going to see how we can convert a character to string in C++?
Submitted by Radib Kar, on February 27, 2019

Converting character to string

Sometimes, It may be needed to convert a character variable to a string variable. In C++, we can do this by calling the constructor of the string class. For example, 'a' will be converted to "a".

'a' is a character, whereas "a" is a string value,
char c = 'a';
string s(1,c); //s = "c"

C++ String Constructor

Syntax

string(int, char);

Parameter(s)

int n;//n=1
char c;

Return value

Conceptually it's returning (constructing actually) the string. But actually since it's constructor it has no return type.

Here is an example with sample input and output:

Like we define and declare,

char c='I';
string s(1,c); //s="I"

if(s=="I")
    cout<<"converted to string";
else
    cout<<"Failed to convert.";

Remember, a string variable (literal) need to be defined under "". 'a' is a character whereas "a" is a string.

Header file needed

#include <string>
Or
#include <bits/stdc++.h>

C++ program to convert a character to the string

#include <bits/stdc++.h>
using namespace std;

int main() {
  char c;

  cout << "Input character to convert\n";
  cin >> c;

  string s(1, c);
  cout << "Converted to string: " << s << endl;

  return 0;
}

Output

Input character to convert
I
Converted to string: I