Formatting C++ setw

Question

I am working on formatting and I am not getting the correct formatting.

Here is my code and here is what I am getting for the output

cout << fixed << setprecision(2) << setw(3) << right << source << setw(20) <<right <<vec[source].cityname << setw(15) << left<< sink << setw(15) << left <<vec[sink].cityname << setw(10) << left << vdist[ij] << "miles\n";

I am getting this:

30 Novosibirsk_RU13 Tokyo_JP 10497.68 miles

And I would like to be getting this:

30 Novosibirsk_RU 13 Tokyo_JP 10497.67 miles

How can I get that space between the name and the number?

I've been working on this for a while but I just can't get the right formatting

πάντα ῥεῖ · Accepted Answer · 2014-03-26 14:37:33Z

You have used the std::right IO manipulator wrongly in your cout statement. To achieve the output as shown in your sample you want vec[source].cityname and vec[sink].cityname obviously left aligned:

cout << fixed << setprecision(2) << setw(3) << right << source << setw(20) << left <<vec[source].cityname << // ^^^^ setw(3) << left<< sink << // ^ setw(15) << left <<vec[sink].cityname << setw(10) << left << vdist[ij] << "miles\n";

Also note, if you use setw(n) and n is smaller than the length of the next field (string) variable, it won't be cutoff, but shifts the whole output to the right for the number of additional characters.

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