#include
#include
class Subscriber {
public:
virtual void Notify(float f) = 0;
};
class Publisher {
public:
constexpr void AddSubscriber(Subscriber* sub) { subs_.push_back(sub); };
void Notify(float v) {
for (auto& s : subs_) {
if (s) {
s->Notify(v);
}
}
}
private:
std::vector subs_;
};
class DriverA : public Publisher {
public:
using Subscriber = ::Subscriber;
void Activate(float f) { Notify(f); }
};
class DriverB : public Publisher {
public:
using Subscriber = ::Subscriber;
void Activate(float f) { Notify(f); }
};
class Handler : public DriverA::Subscriber, public DriverB::Subscriber {
public:
constexpr Handler(DriverA& da, DriverB& db) {
da.AddSubscriber(this);
db.AddSubscriber(this);
}
float Val() const { return val_; }
private:
void DriverA::Subscriber::Notify(float v) override {
val_ = v;
std::cout
Подробнее здесь: https://stackoverflow.com/questions/797 ... scriptions
