这是我在逛 Stack Overflow 时遇见的一个高分问题：Why is processing a sorted array faster than an unsorted array?，我觉得这是一个非常好的用来讲分支预测（Branch Prediction）的例子，分享给大家看看

The default constructor (12.1), copy constructor and copy assignment operator (12.8), move constructor and move assignment operator (12.8), and destructor (12.4) are special member functions. [ Note: The implementation will implicitly declare these member functions for some class types when the p...