c++ - 在 C++ 中，这个结构是什么意思 "InterceptionKeyStroke &kstroke = * (InterceptionKeyStroke *) &stroke"？

Question

我是C++新手，不懂这个构造。

InterceptionKeyStroke &kstroke = * (InterceptionKeyStroke *) &stroke

我知道 & = 指针。但这意味着什么？

* (InterceptionKeyStroke *)

Answer 1

分解:

InterceptionKeyStroke     // a type...
&                         // ...which is by reference
kstroke                   // named 'kstroke'
=                         // bound to (since references are bound)
*                         // something that a pointer points to
(InterceptionKeyStroke*)  // "I know what the type is!" cast
&                         // address of...
stroke                    // ...variable named 'stroke'

所以 *(InterceptionKeyStroke*) 正在转换为一个指针，然后取消引用该指针。