padding doubles with 0 1

[neonep]

int num = 32;

fprintf ( file, "%6d", num ); writes " 32" into the file
fprintf ( file, "%06d", num ); writes "000032" into the file

How can I use similar padding to put 0's before digits of a double?

So if I have
double d = 32.5;

fprintf ( file, "%4.2f", d ); yields " 32.5"

I want it to be "0032.5"

Any help will be appreciated. Thanks.

 

[DaveSinkula]

#include <stdio.h>

int main(void)
{
   double d = 32.5;
   printf ( "%[red]06.1[/red]f\n", d );
   return 0;
}

/* my output
0032.5
*/

The 6 is the total width (which includes the decimal point and fractional digits).

 

[xwb]

This is the best I can come up with. Maybe someone can do something better

#include <stdio.h>
#include <string.h>
int main ()
{
   float x = 32.5;
   char str[32];

   sprintf (str, "0000%.2f", x);
   printf ("%s\n", &str[strlen(str) - 7]);
   return 0;
}