leading zero on single digit int

This is a discussion on leading zero on single digit int within the C++ Programming forums, part of the General Programming Boards category; Is there a way to include a leading zero on a single digit int using cout without using if statements? ...

  1. #1
    Pursuing knowledge confuted's Avatar
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    leading zero on single digit int

    Is there a way to include a leading zero on a single digit int using cout without using if statements?

    edit: nevermind, if statements are sufficiently easy
    Last edited by confuted; 07-31-2003 at 03:29 PM.
    Away.

  2. #2
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    In case you still wanted to know, the printf statement can do what you want. You'd have to specify the precision ( I believe it is .#, that is, a period followed by a number). In the case of integers it will force the output to have a specific minimum number of digits and print leading zeros if necessary. I found that info on the following page:

    http://www-rocq.inria.fr/scilab/doc/...u-html420.html


    ~SK

  3. #3
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    Code:
    #include <iostream>
    #include <iomanip>
    
    using namespace std;
    
    int main(void)
    {
       int a = 3;
    
       cout << setw(2) << setfill('0') << a << endl;
       return 0;
    }

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