« Correcting IP address of PHP behind a reverse proxy | Home | TilEm, a TI-83 Plus emulator for Linux »
Converting between int and std::string in C++
By admin | November 20, 2010
#include <iostream>
#include <sstream>
#include <cstdlib>
using namespace std;
int main() {
// convert int to string
int some_int = 52;
stringstream ss;
ss << some_int;
string result_s;
ss >> result_s;
// result_s = 52
cout << result_s << endl;
// convert string to int
string some_string = "1234";
int result_i = atoi(some_string.c_str());
// result_i = 1234
cout << result_i << endl;
}
If you found this article helpful or interesting, please help Compdigitec spread the word. Don’t forget to subscribe to Compdigitec Labs for more useful and interesting articles!
Topics: Linux, Windows | 10 Comments »
September 14th, 2011 at 08:42
What about converting from std::string back to int
April 28th, 2012 at 19:13
@Russell:
See atoi() or sscanf() in the C standard library.
July 2nd, 2026 at 20:48
… [Trackback]
[…] Info to that Topic: compdigitec.com/labs/2010/11/20/converting-between-int-and-string-in-c/ […]
July 15th, 2026 at 20:28
… [Trackback]
[…] Information on that Topic: compdigitec.com/labs/2010/11/20/converting-between-int-and-string-in-c/ […]
July 16th, 2026 at 18:12
… [Trackback]
[…] Here you will find 16120 additional Information to that Topic: compdigitec.com/labs/2010/11/20/converting-between-int-and-string-in-c/ […]
July 18th, 2026 at 08:11
… [Trackback]
[…] Read More to that Topic: compdigitec.com/labs/2010/11/20/converting-between-int-and-string-in-c/ […]
August 1st, 2026 at 01:13
… [Trackback]
[…] Here you can find 90783 more Info to that Topic: compdigitec.com/labs/2010/11/20/converting-between-int-and-string-in-c/ […]
August 3rd, 2026 at 02:54
… [Trackback]
[…] Read More to that Topic: compdigitec.com/labs/2010/11/20/converting-between-int-and-string-in-c/ […]
August 21st, 2026 at 19:38
… [Trackback]
[…] There you can find 92747 additional Information to that Topic: compdigitec.com/labs/2010/11/20/converting-between-int-and-string-in-c/ […]
September 10th, 2026 at 22:22
… [Trackback]
[…] Here you will find 78159 additional Information to that Topic: compdigitec.com/labs/2010/11/20/converting-between-int-and-string-in-c/ […]