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#1
April 9th, 2005, 05:32 PM
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How to add an int to a std::string???
Say I have a string object and I want to add an integer to it, how would I do it?
Code:
#include <string>
#include <iostream>
using namespace std;
int main() {
int value = 5;
string s;
s = "The value is: ";
s += value;
cout << s << endl;
return 0;
}
I'd like it to output, "The value is: 5" -- however all it outputs is "The value is: ". Please help.. this simple problem is driving me nucking futs.
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#2
April 9th, 2005, 06:08 PM
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I'm not sure if this is standard C++, but in C you can use the sprintff() function, ie:
sprintf(s,"%d",value) if you're familiar with printf() that should make sense 
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#4
April 9th, 2005, 06:48 PM
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Nevermind, I finally figured it out
A. Converting from int to string is a little more complicated than converting a string to int. There are no standard C++ functions for this, but there is a way to do it using standard stringstreams. The class stringstream is declared in header sstream and is used like this: std::stringstream ss; std::string str; ss << 31337; ss >> str;
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#5
April 9th, 2005, 08:36 PM
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Quote:
actually, it would probably be fairly easy to manually convert an int to a string... you'd just need to set a loop and devide your int by different powers of 10, logging your results as you go..... but then, that would be the "interesting" way of dong it
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