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marcojrfurtado

11-26-2009 07:59 AM

C - Constants in printf

Hello,

I'm trying to set a minimum number of fields to write an integer variable in C.
I know it can be done this way:
"printf(" %05d\n",13)"
stdout:
"00013"

I wonder if there is a way for me to do the same thing using a constant?
If I declare a constant (" #define CONST 5"), can I use it in my printf in order to generate the same result?

bigearsbilly

11-26-2009 08:34 AM

use the *

Code:

#include <stdio.h>

#define WIDTH 5



int main (int argc, char ** argv) {



    printf("%0*d\n", WIDTH, 3);

    return 0;

}

can be a run time int also

marcojrfurtado

11-26-2009 09:14 AM

Thank you very much. It worked really well.

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