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Q&A sessions on common C++ idioms with examples

Welcome to the C++ training repository. Each week a new exercise will be posted which attempts to explain an idiom or concept frequently used in our code. Exercises will require you to write some code and then answer questions on the result of running it.

The code should be executable on any platform with a standards-compliant C++ compiler (g++ 4.4 or greater, MSVC10 or greater, clang). Cmake should be used to generate the appropriate build files. (See the README for instructions)

###Past and Future Trainings:

• Passing and returning by reference, pointer, and value.

  val_ref_ptr branch | answers

• const objects, const member functions, and auto.

  const_auto branch | answers

• Function objects: functions, functors, lambdas and bind (three part)

  callable1 branch | answers

  callable2 branch | answers

  callable3 branch | answers

• STL Algorithms: Use them to write descriptive and maintainable code

  algorithm branch | answers

• Resource Acquisition Is Initialization (RAII): Correct and concise code when allocating memory, locking mutexes, and more.

  raii branch | answers

• Smart pointers: std::shared_ptr and std::unique_ptr

  smart_ptr branch | answers

  smart_ptr2 branch | answers

  smart_ptr3 branch | answers

• Dependency minimization: Separate compilation, forward declarations and unnamed namespaces

  minimization branch | answers

• A Taste of Template Metaprogramming: enable_if and the curiously recurring template pattern

  metaprogramming branch | answers