What is different between *variable and variable* in c?

by

like comments said, “P1*” is a pointer to an object of type “P1”.

On the other hand ” * p1″ is an indirection (telling the compiler that it is an adress) on the content of the pointer p1; 

P1* pp1;
P1 p1;

returning *pp1 is like returning p1;

returning pp1 return the adress of the pointed object.

cf : C++ – *p vs &p vs p

More Related Contents:

  1. Matrix Printing using Pointers [closed]
  2. Why is sizeof giving incorrect number of bytes in C++?
  3. Changing the object a pointer points to in c++
  4. When should I use the new keyword in C++?
  5. Why does the use of ‘new’ cause memory leaks?
  6. Pointer vs. Reference
  7. Is it good practice to NULL a pointer after deleting it?
  8. Pointer expressions: *ptr++, *++ptr and ++*ptr
  9. Declaring pointers; asterisk on the left or right of the space between the type and name? [duplicate]
  10. Does const-correctness give the compiler more room for optimization?
  11. Why does cudaMalloc() use pointer to pointer?
  12. std::map, pointer to map key value, is this possible?
  13. Get pointer to object from pointer to some member
  14. Convert C++ function pointer to c function pointer
  15. Explanation of function pointers
  16. How to allocate a 2D array of pointers in C++
  17. Character pointers and integer pointers (++)
  18. Is an iterator in C++ a pointer?
  19. std::unique_ptr with derived class
  20. Confusion about pointers and references in C++
  21. Returning non-const reference from a const member function
  22. array of pointers as function parameter
  23. Why do linked lists use pointers instead of storing nodes inside of nodes
  24. Why do some people prefer “T const&” over “const T&”?
  25. how do arrays work internally in c/c++
  26. Why is a c++ reference considered safer than a pointer?
  27. Safety of casting between pointers of two identical classes?
  28. How can a char pointer be initialized with a string (Array of characters) but an int pointer not with an array of integer? [duplicate]
  29. Is it possible to have a pointer literal?
  30. Pass by pointer & Pass by reference [duplicate]

Leave a Comment