#include <sys/types.h>
#include <unistd.h>
#include <sys/wait.h>

void    my_putchar(char c)
{
  write(1,&c,1);
}

int     my_putstr(char *str)
{
  while (*str != '\0')
    {
      my_putchar(*str);
      str++;
    }
}

void			aff_err(char *str)
{
	my_putstr("error: ");
	my_putstr(str);
	my_putchar('\n');
	exit(1);
}

int     		main()
{
	pid_t		pid;

	if ((pid = fork()) < 0)
	aff_err("fork");
	if (pid)
	{
		int	status;

		my_putstr("Pere : j'attends mon fils...\n");
		wait(&status);
		my_putstr("Pere : a bientot\n");
	}
	else
	{
		sleep(1);
		my_putstr("Fils : me voila\n");
	}
}