Libft - Parte 1

int	ft_tolower(int c)
{
	if (c >= 'A' && c <= 'Z')
		c = c + 32;
	return (c);
}

int	ft_isalpha(int c)
{
	if ((c >= 'A' && c <= 'Z') || (c >= 'a' && x <= 'z'))
		return (1);
	return (0);
}