std::to_string in C++
Last Updated :
24 Sep, 2024
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In C++, the std::to_string function is used to convert numerical values into the string. It is defined inside <string> header and provides a simple and convenient way to convert numbers of any type to strings.
In this article, we will learn how to use std::to_string() in C++.
Syntax
std::to_string(val);
Parameters
- val: It is the value which we have to convert into string. It can be of any numeric data type like integer, long long, double, float, long double.
Return Value
- A string containing the representation of val as a sequence of characters.
Example of std::to_string()
// C++ Program to show how to use std::to_string
// for converting any numerical value
#include <bits/stdc++.h>
using namespace std;
int main() {
int num = 42;
double pi = 3.14159;
float fnum = 1.234f;
// Converts integer to string
string str1 = to_string(num);
// Converts double to string
string str2 = to_string(pi);
// Converts float to string
string str3 = to_string(fnum);
cout << "Numbers as String: " << endl;
cout << str1 << endl;
cout << str2 << endl;
cout << str3 << endl;
return 0;
}
Output
Numbers as String: 42 3.141590 1.234000
