chore: Add course material

397/SolutionEx31Bonus/TimerSet.cpp

@@ -0,0 +1,33 @@
+#include "TimerSet.h"
+#include "Timer.h"
+#include <iostream>
+
+TimerSet::TimerSet()
+    : /* timersInUse(), */ previousTime(time(NULL))
+// 3.1 bonus: removed init
+{}
+
+void TimerSet::addATimer(Timer *t) {
+    // timers[timersInUse++] = t; 3.1 bonus: uses vector
+    timers.push_back(t);
+}
+
+void TimerSet::pollAllTimers() {
+    std::time_t timeNow;
+    if (time(&timeNow) > previousTime) {
+        previousTime = timeNow;
+        // for(int i=0; i < timersInUse; ++i)
+        //{
+        //  timers[i]->tick();
+        //} Bonus 3.1: use iterator for the vector
+        for (auto it = timers.begin(); it != timers.end(); it++) {
+            (*it)->tick();
+        }
+    }
+}
+
+TimerSet &TimerSet::Instance() {
+    // Meyer's Singleton implementation
+    static TimerSet pInstance;
+    return pInstance;
+}