A demonstration of more advanced flags usage.

FlagsDemo.cpp

#include "Flags.hpp"

#include <iostream>

enum class Demo : uint16_t {
    Enabled = (1<<0),
    
    Mode5k  = (0x0<<2),
    Mode10k = (0x1<<2),
    Mode16k = (0x2<<2),
    Mode20k = (0x3<<2),
    ModeMask = (0x3<<2),
    
    Speed0 = (0x0<<9),
    Speed1 = (0x1<<9),
    Speed2 = (0x2<<9),
    SpeedMask = (0x7<<9),
    SpeedDefault = Speed1,
};
LR_DECLARE_FLAGS(Demo, Demos)
LR_DECLARE_OPERATORS_FOR_FLAGS(Demos)

int main()
{
    // Initializer list.
    Demos demos = {Demo::Enabled, Demo::Mode10k, Demo::SpeedDefault};
    // Flag check.
    if (demos.isSet(Demo::Enabled)) {
        std::cout << "Enabled" << std::endl;
    }
    // Masking flags.
    if ((demos&Demo::ModeMask) == Demos(Demo::Mode10k)) {
        std::cout << "Mode 10k" << std::endl;
    }
    // Using a switch statement for masked flags.
    switch (demos&Demo::SpeedMask) {
    case Demos(Demo::Speed0):
        std::cout << "Speed 0" << std::endl;
        break;
    case Demos(Demo::Speed1):
        std::cout << "Speed 1" << std::endl;
        break;
    case Demos(Demo::Speed2):
        std::cout << "Speed 2" << std::endl;
        break;
    default:
        break;
    }
    return 0;
}