Help with Strings

This is a discussion on Help with Strings within the C++ Programming forums, part of the General Programming Boards category; I am trying to create a program using formatted output to the screen, two columns 15 characters wide, with the ...

  1. #1
    Master of Puppets rwmarsh's Avatar
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    Help with Strings

    I am trying to create a program using formatted output to the screen, two columns 15 characters wide, with the output being strings. If the string is longer than 15 characters I want to truncate it to fit in the column. So far this is what I have:

    Code:
    #include <iostream>
    #include <iomanip>
    #include <string>
    
    using namespace std;
    
    int main()
    {
        string mystring1="This is a string";
        string mystring2="This is another string";
        string tempstring="";
        cout<<setiosflags(ios::left);
        cout<<setw(17)<<"String 1"<<"String2\n";
        cout<<tempstring.assign(mystring1, 0, 15)<<"  ";
        tempstring="";
        cout<<tempstring.assign(mystring2, 0, 15)<<"\n";
        return 0;
    }
    This works, but I was wondering if there was a way to do it without the use of tempstring. Maybe a string member function?

  2. #2
    C++ Witch laserlight's Avatar
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    What if you use:
    Code:
    cout << mystring1.substr(0, 15) << "  ";
    cout << mystring2.substr(0, 15) << "\n";
    Quote Originally Posted by Bjarne Stroustrup (2000-10-14)
    I get maybe two dozen requests for help with some sort of programming or design problem every day. Most have more sense than to send me hundreds of lines of code. If they do, I ask them to find the smallest example that exhibits the problem and send me that. Mostly, they then find the error themselves. "Finding the smallest program that demonstrates the error" is a powerful debugging tool.
    Look up a C++ Reference and learn How To Ask Questions The Smart Way

  3. #3
    Master of Puppets rwmarsh's Avatar
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    OK, That works great. Thanks!

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