#include <stdio.h>
#include <io.h>
// #include <system.h>
#include "../include/definition.h"
#include <iostream>
#include <bitset>

int getFirstOnePos(int val)
{
    for (int i = 0; i < sizeof(val)*8; ++i)
    {
        if (val & 1)
            return i;
        val >>= 1;
    }
    return -1;
}

int setBit(int source, int pin, int state)
{
    return state == 0 ? source &= ~(1UL << getFirstOnePos(pin)) : source |= 1UL << getFirstOnePos(pin);
}

int switchState(int source, int pin)
{
    return source ^= 1UL << getFirstOnePos(pin);
}

int checkState(int source, int pin)
{
    return (source & (1 << getFirstOnePos(pin))) == 0 ? 0 : 1;
}

int main()
{               //  9876543210
    int swstate = 0b0000000000;
    //while (1)
    {
        //printf(".");
        swstate = setBit(swstate, SW6, 0);
        swstate = setBit(swstate, SW7, 0);
        swstate = setBit(swstate, SW8, 0);
        swstate = setBit(swstate, SW9, 0);
        switch (swstate)
        {
        case SW0:
            std::cout << "0" << std::endl;
            break;
        case SW1:
            std::cout << "1" << std::endl;
            break;
        case SW2:
            std::cout << "2" << std::endl;
            break;
        case SW3:
            std::cout << "3" << std::endl;
            break;
        case SW4:
            std::cout << "4" << std::endl;
            break;
        case SW5:
            std::cout << "5" << std::endl;
            break;
        default:
            if (swstate == 0)
                std::cout << "OK" << std::endl;
            else
                std::cout << "ERR" << std::endl;
            break;
        }
    }
    std::cin.get();
    return 0;
}