Select Code to Download

% cat sprin
#! /usr/bin/perl -w
...
    printf "$num0 => %0.0f  $num1 => %0.1f  $num2 => %0.2f\n",
        $num0, $num1, $num2;
}

% perl sprin
1.0 => 1  1.00 => 1.0  1.000 => 1.00
...
1.7 => 2  1.07 => 1.1  1.007 => 1.01
1.8 => 2  1.08 => 1.1  1.008 => 1.01
1.9 => 2  1.09 => 1.1  1.009 => 1.01

include <stdlib.h>
#include <stdio.h>
...
    printf( buf, *argv, f );
    return 0;
}

% ./s %0.0f 0.4
0.4 => 0
...
1.5 => 2
% ./s %0.0f 1.6
1.6 => 2