ADC Config Flags

#include <iostream>
#include <cstdint>
#include <vector>
#include <string>

using namespace std;

// Declare enum class with uint8_t underlying type for memory efficiency
enum class AdcConfig : uint8_t {
    ChannelEnable = 1,   // Binary: 0000 0001
    InterruptEnable = 2, // Binary: 0000 0010
    DMAEnable = 4        // Binary: 0000 0100
};

// Function to examine the bitmask and print enabled features
void printConfig(uint8_t cfg) {
    bool anyEnabled = false;

    // Check ChannelEnable (Bit 0)
    if (cfg & static_cast<uint8_t>(AdcConfig::ChannelEnable)) {
        cout << "ChannelEnable";
        anyEnabled = true;
    }

    // Check InterruptEnable (Bit 1)
    if (cfg & static_cast<uint8_t>(AdcConfig::InterruptEnable)) {
        if (anyEnabled) cout << " "; // Add space if a previous flag was printed
        cout << "InterruptEnable";
        anyEnabled = true;
    }

    // Check DMAEnable (Bit 2)
    if (cfg & static_cast<uint8_t>(AdcConfig::DMAEnable)) {
        if (anyEnabled) cout << " ";
        cout << "DMAEnable";
        anyEnabled = true;
    }

    // If no bits were set, print "None"
    if (!anyEnabled) {
        cout << "None";
    }
    
    cout << endl;
}

int main() {
    int ch, intr, dma;
    if (!(cin >> ch >> intr >> dma)) return 0;

    uint8_t cfg = 0;
    
    // Combine inputs into the configuration byte using bitwise OR
    if (ch)   cfg |= static_cast<uint8_t>(AdcConfig::ChannelEnable);
    if (intr) cfg |= static_cast<uint8_t>(AdcConfig::InterruptEnable);
    if (dma)  cfg |= static_cast<uint8_t>(AdcConfig::DMAEnable);

    printConfig(cfg);
    
    return 0;
}

Solving Approach