A simple printing question

Okay I know somtimes we make a mistake with even the simplest thing!

Im trying to print out a string followed by an integer value, but don't want to print it out directely to the screen as I am using it in a function.

int percent;

cout << "Percantage " << percent;

works,

but

string str = "Percentage" + percent;
cout << str;

You need to convert percent to string. See the FAQ
A quick code:

Code:

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#include<iostream>
#include<sstream>
using namespace std;

int main()
{
       
        ostringstream ostr;
        double num = 15.5;

        ostr << num;

        string percent_str =  ostr.str();
        cout<<"Percent "+ percent_str;
       
        return 0;
}

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but that is outputting the string directly to the screen, i want to be able to store it as a string as i wouldbe using that to display via another function. I thougt if u you the concat operator + with a string and a number it would automatically convert the number to a string and concantenate it?

string str = "Percentage ";
str += percent;

Quote:

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Originally Posted by Kirdra

string str = "Percentage ";
str += percent;

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I believe this won't work since the concatenation operator will only accept char*, char or std::string so i believe you must always work with something like Micko suggested to convert the int (or any other type) to any of the accepted types, being std::string the easier one to achieve.

Cheers