Assignment name  : paramsum
Expected files   : paramsum.c
Allowed functions: write
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Write a program that displays the number of arguments passed to it, followed by
a newline.

If there are no arguments, just display a 0 followed by a newline.

Example:

$>./paramsum 1 2 3 5 7 24
6
$>./paramsum 6 12 24 | cat -e
3$
$>./paramsum | cat -e
0$
$>
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#include <unistd.h>

void	ft_putnbr(int n)
{
	char digit;

	if (n >= 10)
		ft_putnbr(n / 10);

	digit = (n % 10) + '0';
	write(1, &digit, 1);
}

int		main(int argc, char **argv)
{
	(void)argv;		// Silence 'unused parameter' error

	ft_putnbr(argc - 1);
	write(1, "\n", 1);

	return (0);
}