ReduCpp basic usage example

ReduCpp@basics.cpp

#include <reducpp/store.hpp>
#include <reducpp/action.hpp>

using namespace reducpp;

struct mystate 
{
    int value;
};

class myaction : public reducpp::action 
{
public:
    enum TYPE { INCREMENT, DECREMENT };
    myaction(TYPE type) : m_type(type) { }
    int type() const { return m_type; }
private:
    TYPE m_type;
};

store<mystate, myaction> counter(const mystate& state, const myaction& action) 
{
    mystate newstate = state;
    switch (action.type()) {
        case myaction::INCREMENT: newstate.value++; break;
        case myaction::DECREMENT: newstate.value--; break;
    }
    return std::move(newstate);
}

int main(int argc, char* argv[]
{
    store<mystate, myaction> store(counter);

    sut.dispatch(myaction(myaction::INCREMENT));
    // 1
    sut.dispatch(myaction(myaction::INCREMENT));
    // 2
    sut.dispatch(myaction(myaction::DECREMENT));
    // 1
}