Modern C++

May 01, 2016

C-style C++

#include <cstdio>

// TODO array of struct* manually allocated

  • manual memory allocation 

  • C standard library functions

  • lack of structure

Modern C++

#include <vector>

// TODO vector of RAII*

  • RAII

  • STL

  • Object-Oriented

Modern C++

  • smart pointers / nullptr
  • rvalue / move semantics
  • uniform initialization syntax
  • defaulted and delete functions
  • compile-time type tools
    • automatic type deduction
    • asserts and constexpr
  • Standard Template Library
    • iterators
    • algorithms
    • concurrency
  • lambdas

C++11 / C++14

Initialization and Memory

RAII

Resource Acquisition Is Initialization

  • hide resource acquisition in class constructor

    • memory allocation

    • network connections

    • file loading

    • mutex locking

  • throw exception on error

  • no naked new/delete

// TODO RAII class

// TODO RAII class usage

Initialization

// TODO vector, map, and object {} init
// TODO class member init

Smart Pointers

  • shared_ptr
  • unique_ptr
  • nullptr
// TODO shared, unique, nullptr, make_shared, new allocation

Move Semantics

  • rvalue vs lvalue

  • std::move

  • std::forward

  • Rule of 5

rvalue

Rule of 5

std::move

Casting

  • static_cast
    • when to use
  • dynamic_cast
    • when to use

Compile-Time Programming

Templates and Types

Templates

Generic Programming

// TODO template class
// TODO template function

Variadic Templates

// TODO template class
// TODO template function

auto

// TODO auto assignment

Other Compile-time Goodness

  • constexpr

  • static_assert

// TODO constexpr
// TODO static_assert

STL

Standard Template Library

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