smartPointers

Writing leak-free C++.

Here we have four code snippets that will benefit from using smart pointers. By replacing every explicit new with make_unique or make_shared, (alternatively by explicitly instantiating smart pointers) we will fix memory leaks, and make most cleanup code unnecessary.

Prerequisites

• Which pointer is used for what?
  • Raw pointer
  • std::unique_ptr
  • std::shared_ptr
• C++-14 for std::make_unique / std::make_shared. Understand what these functions do.
• Helpful: Move semantics for problem2(), but can do without.

Instructions

• Compile and run the program. It doesn't generate any output.
• Run with valgrind to check for leaks

valgrind --leak-check=full --track-origins=yes ./smartPointers

• In the essentials course, work on problem1() and problem2(), and fix the leaks using smart pointers.
• In the advanced course, work on problem1() to problem4(). Skip problem4() if you don't have enough time.