Some records for C + + operator overloading

1. Which can not be overloaded?

. .*

2. Does the member function differ from the operator overloading function of a non-member function?
Whether the left side of the operator is the class object itself.

3. a++, ++a operation
X operator + + (const x& X);
Const x& operator + + (const x& X, int);
The int parameter exists as a dummy element because the identifier is post-added, because x + + cannot be left-valued so the return value is const x&

4. Use implicit conversions as little as possible
Include conversion of constructors to join explicit
Overloaded operator operator ()

5.<c++ Strategies & tactics> Description
All unary operators recommend the use of Members
= () []->* must use members
+ = = *=/= ^= &= |=%= >>= <<= recommended use of Members
All other two-tuple operators recommend the use of non-member

Some records for C + + operator overloading