Right Justifying output stream in C++

Question

I'm working in C++. I'm given a 10 digit string (char array) that may or may not have 3 dashes in it (making it up to 13 characters). Is there a built in way with the stream to right justify it?

How would I go about printing to the stream right justified? Is there a built in function/way to do this, or do I need to pad 3 spaces into the beginning of the character array?

I'm dealing with ostream to be specific, not sure if that matters.

Answer 1

You need to use std::setw in conjunction with std::right.

#include <iostream>
#include <iomanip>

int main(void)
{
   std::cout << std::right << std::setw(13) << "foobar" << std::endl;
   return 0;
}

Answer 2

Yes. You can use setw() to set the width. The default justification is right-justified, and the default padding is space, so this will add spaces to the left.

stream << setw(13) << yourString

See: setw(). You'll need to include <iomanip>.

Answer 3

See "setw" and "right" in your favorite C++ (iostream) reference for further details:

 cout << setw(13) << right << your_string;