1. Random number generation

2. Convert an integer to a string in C++

#include <sstream>

string convertInt(int number)

{

   stringstream ss;//create a stringstream

   ss << number;//add number to the stream

   return ss.str();//return a string with the contents of the stream

}

3. Assertion in C++

Code:

#include <cassert>

int main()

{

int* array = NULL;

assert(array != NULL); // this should fail

return 0;

}

output is:

Code:

Assertion failed: array != NULL, file test.cpp, line 7

abnormal program termination