allSamePort()

bool fl::DigitalMultiWrite8::allSamePort

(

)

const

Check whether all active pins (non -1) share the same GPIO port.

Returns true if fewer than 2 active pins exist (trivially same port).

Definition at line 217 of file pins.cpp.hpp.

                                                        {
    int first_port = -1;
    for (u8 i = 0; i < 8; ++i) {
        if (mPins[i] < 0) {
            continue;
        }
        int port = fl::pinToPort(mPins[i]);
        if (first_port < 0) {
            first_port = port;
        } else if (port != first_port) {
            return false;
        }
    }
    return true;
}

References fl::FL_NO_EXCEPT, mPins, and fl::pinToPort().

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