Finalized the implementation

device_generator.cpp

@@ -0,0 +1,15 @@
+#include "device_generator.h"
+#include <random>
+
+DeviceGenerator::DeviceGenerator(int max_range, int num_entries): 
+    ImplGenerator{num_entries},
+    m_max_range{max_range}, m_num_entries{num_entries}
+{}
+
+int DeviceGenerator::get_next_num_internal()
+{
+    std::random_device rd;
+    std::uniform_int_distribution<int> dist(0, m_max_range);
+
+    return dist(rd);
+}