Why is the this pointer in C++ a pointer and not a reference? Are there use-cases that I'm missing that make "this" as a pointer more useful than a reference? If not, are there any language design implications/considerations involved in having it as a pointer?
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加上typedef后，Pode等价于struct node *。所以Pode *p表示的是struct node **p，即二级指针。直接使用Pode p即可。
如果你使用的变量x是个结构体，应该用.访问其成员，如：x.num 如果你使用的变量x是个结构体指针，应该用->访问其成员，如：x->num 如果当前变量x是个结构体而你却使用了x->num的方式访问，就会出现上面的报错。
class Car { public: int speed; }; int main() { int Car::*pSpeed = &Car::speed; return 0; } Why does C++ have this pointer to a non-static data member of a class? What is the use of this strange pointer in real code?c++...
What is the difference between an uninitialized pointer and a null pointer? Both are different from each other but I have seen many people asking this question. So I am giving the answer to this silly question. An uninitialized pointer is a pointer that points to an unknown memory location....
in the project. This issue can waste a lot of your time and can be the cause of project failure. The problem with a pointer to a function is that it is one of the most difficult topics in C language. Only a few people understand the proper utilization of pointer to function in C. ...
PURPOSE === Xautolock monitors console activity under the X window system, and fires up a program of your choice if nothing happens during a user configurable period of time. You can use this to automatically start up a screen locker in case you tend to forget to do so manually before h...
For instance methods, argument 0 is the this pointer and the first argument starts at 1 rather than 0.Copy ldarg.2 // Load argument 2 onto the stack. 3 is the // highest number using this form. ldarg.s 6 // Load argument 6 onto the stack. All argument // numbers past 4 (...