Thread: if statement multiple conditions

Your tests of send_bits need to all mention send_bits, like:

Code:

    if (send_bits==0x0000||send_bits==0x4000||send_bits==0x4080||
        send_bits==0x4081||send_bits==0x4001||send_bits==0x0081||
        send_bits==0x0080||send_bits==0x0016)

But it's complicated enough that you could write a function (or macro function).

Code:

int test_bits(SendBitsType b) {
    return b==0x0000||b==0x4000||b==0x4080||b==0x4081||
           b==0x4001||b==0x0081||b==0x0080||b==0x0016;
}

// ... some function
    if (test_bits(send_bits))
        switch (on_off) {
        case 0:
            send_bits -= LEDs;
            break;
        case 1:
            send_bits += LEDs;
            break;
        }

Alternatively, you could use multiple switch cases together:

Code:

    switch (send_bits) {
    case 0x0000: case 0x4000: case 0x4080: case 0x4081:
    case 0x4001: case 0x0081: case 0x0080: case 0x0016:
        send_bits += (on_off ? 1 : -1) * LEDs;
    }