Testing_lookup_table

int (*conversion_functions[256])(va_list) = {
	['c'] = print_char,
	['s'] = print_str,
	['d'] = print_int,
	['i'] = print_int,
	['b'] = print_binary,
	['u'] = print_unsigned,
	['o'] = print_octal,
	['x'] = print_hex_lower,
	['X'] = print_hex_upper,
	['%'] = print_percent
};

const char *valid_specifiers = "csdibuxX%";

void printcs(const char *format, int *count_ptr, va_list args)
{
	while (*format)
	{
		if (*format == '%')
		{
			format++;
			if (strchr(valid_specifiers, *format) != NULL)
			{
				*count_ptr += conversion_functions[*format](args);
			}
			else
			{
				_putchar('%');
				*count_ptr += _putchar(*format);
			}
		}
		else
		{
			*count_ptr += _putchar(*format);
		}
		format++;
	}
}