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?

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

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(), ' ');

---

Quote:

---

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.....

Yes, so you have to do setw() on the first part of the line too:

Code:

---

cout  <<  setw(12) << "James" << set(5) << "    " <<  "%";
cout  <<  setw(12) << "Michelangelo" << set(5) << "    " << "%" ;

---

Of course, the solution suggested by Daved is also good.

--
Mats

Quote:

---

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 +=.

Quote:

---

Originally Posted by Daved

The easiest way is to use +=.

---

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