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How to Convert a Number into a String in C++

I found a few ways to convert a number into C++, some of them are C style (like using sprintf), and some are ugly (i.e non-standard, like using itoa), and there some nice way which uses string streams to achieve this.

Where going to define and implement a function called Stringify, which accepts an integer and returns a string (this can be extended to accept any numeric value).

Here is a C++ code, which implements this function, and uses it in a simple example.

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#include <iostream>

#include <string>

#include  <sstream>



using namespace std;



string

Stringify(int number) {

        ostringstream tmpStr;

        tmpStr << number;

        return(tmpStr.str());

};



int

main() {

        int x = 42;

        string y = "x = " + Stringify(x);

        cout << y << endl;

        return(0);

}

Notice that we included iostream so we can use cout, and sstream so we can use string streams. We also need to include string since we’re dealing with strings.

Hope that this is useful for somebody

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Tags: Object Oriented Programming, Programming