What is the difference between the dot (.) operator and -> in C++? [duplicate]

by

foo->bar() is the same as (*foo).bar().

The parenthesizes above are necessary because of the binding strength of the * and . operators.

*foo.bar() wouldn’t work because Dot (.) operator is evaluated first (see operator precedence)

The Dot (.) operator can’t be overloaded, arrow (->) operator can be overloaded.

The Dot (.) operator can’t be applied to pointers.

Also see: What is the arrow operator (->) synonym for in C++?

More Related Contents:

  1. What does the question mark character (‘?’) mean in C++?
  2. Initializer lists and RHS of operators
  3. Implementing comparison operators via ‘tuple’ and ‘tie’, a good idea?
  4. Why don’t C++ compilers define operator== and operator!=?
  5. What are the pointer-to-member operators ->* and .* in C++?
  6. Conversion constructor vs. conversion operator: precedence
  7. C++ [] array operator with multiple arguments?
  8. Overloading friend operator
  9. Why is ++i considered an l-value, but i++ is not?
  10. What does the >?= operator mean?
  11. Why does C++ need the scope resolution operator?
  12. Is it possible to get the function pointer of a built-in standard operator?
  13. What is the “–>” operator in C++?
  14. Concatenate two string literals
  15. What is the (“spaceship”, three-way comparison) operator in C++?
  16. Making operator
  17. What does ‘&’ do in a C++ declaration?
  18. What is the meaning of “operator bool() const”
  19. Can you make custom operators in C++?
  20. The copy constructor and assignment operator
  21. Multiple preincrement operations on a variable in C++(C ?)
  22. The tilde operator in C
  23. Operator Overloading in C++ as int + obj
  24. insert vs emplace vs operator[] in c++ map
  25. Logical XOR operator in C++?
  26. Why does the expression a = a + b – ( b = a ) give a sequence point warning in c++?
  27. Why is “operator void” not invoked with cast syntax?
  28. What is the difference between “::” “.” and “->” in c++ [duplicate]
  29. What does ‘**’ mean in C?
  30. Why use ++i instead of i++ in cases where the value is not used anywhere else in the statement?

Leave a Comment