Thread: Adjoining Strings

I would like to display strings and few spaces after each string in a menu form

i.e

Code:

#   1. First Menu      #
#   2. Second Menu     #

etc...

using..

Code:

        int choice =1;
        string descr = "First Menu";

	cout << "     \t\t#" << choice <<  "."  <<  descr << "                    #\n";

But the spaces after description will vary which will place the last '#' on different position, or badly aligned...

My solution to this is have two strings

Code:

     string descr;
     string whiteSpace = "                 ";

How do i join these two in such a way that descr overlaps (occupied the first part of ) whitespace?

You just need to calculate how many spaces to add, then create a string with the appropriate number of spaces. Adapting your solution:

Code:

const int max_descr_width = 16;
string descr = "First Menu";
string whiteSpace(max_descr_width - descr.length(), ' ');

Originally Posted by matsp

Perhaps you'd like to use setw() to indicate how wide you want the spacing to be? You can use setw() on a " " too...

--
Mats

Yes but still the start position to display setw(x) X number of times depends on the lenght of the preceding string..
i.e

Code:

cout  <<  "James" << set(5) << "     " <<  "%";
cout  <<  "Michelangelo" << set(5) << "     " << "%" ;

% will be displayed 5 spaces after James, 5 spaces after Michelangelo.....

Originally Posted by Daved

You just need to calculate how many spaces to add, then create a string with the appropriate number of spaces. Adapting your solution:

Code:

const int max_descr_width = 16;
string descr = "First Menu";
string whiteSpace(max_descr_width - descr.length(), ' ');

How do i append a character at the and of a string of type string? strncat() copies from strings, not character., and i think it works with char *

The easiest way is to use +=.

Originally Posted by Daved

The easiest way is to use +=.

didn't know u can do that...thnx