AAA examples from http://herbsutter.com/2013/08/12/gotw-94-solution-aaa-style-almost-always-auto/

CppUG_AAA.cpp

// Classic C++ declaration order     // Modern C++ style
const char* s = "Hello";             auto s = "Hello";
widget w = get_widget();             auto w = get_widget();

employee e{ empid };                 auto e = employee{ empid };
widget w{ 12, 34 };                  auto w = widget{ 12, 34 };
unique_ptr<widget> w                 auto w = make_unique<widget>();
  = make_unique<widget>();
int x = 42;                          auto x = 42;
float x = 42.;                       auto x = 42.f;
unsigned long x = 42;                auto x = 42ul;
std::string x = "42";                auto x = "42"s;   // C++14
chrono::nanoseconds x{ 42 };         auto x = 42ns;    // C++14