“struct *Stack stack”和“struct Stack* stack”有什么区别？

Question

当我在编写struct *Stack stack时编写代码时，代码不起作用，当我像struct Stack* stack代码一样编写它时，有人能告诉我这两个代码之间的区别吗？

Answer 1

While writing a code when I am writing struct *Stack stack then code is not working

This is because struct *Stack stack is not correct syntax. This would imply a pointer named Stack stack , which is not a valid name, pointing to a struct , which is not valid in c or c++ , as you have to indicate what type of struct your pointer will be pointing to. The word struct is not standalone.

when I am writing it like struct Stack* stack code is working

On the other hand, the declaration :

struct Stack* stack;

implies a pointer named stack which points to a struct Stack (which you have defined somewhere).