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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 details

Prototype:

    string(int, char);

Parameter:

    int n;//n=1
    char c;

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

Example:

    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





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