#include <iostream>

using namespace std;

extern "C" void PrintHello() {
   printf("Hello world from C++!\n");
   return;
}

extern "C" void Newline() {
   printf("\n");
}


extern "C" void PrintNumber(int n) {
   printf("The number is %d\n", n);
   return;
}

extern "C" int AddEm(int a, int b){
   return a+b;
}

extern "C" void PrintAndIncrement(int & n) {
   printf("The number is %d\n", n);
   ++n;
   return;
}

extern "C" void FillArray(int data[], int size) {
   for (int i{0}; i < size; ++i) {
      data[i] = 100 + i;
   }
   return;
}

extern "C" void PrintArray(const int data[], int size)  {
   for (int i{0}; i < size; ++i) {
      printf("Array[%d] = %d\n", i, data[i]);
   }
   return;
}