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more info on the examples

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Jidong Xiao
2024-02-23 12:34:07 -05:00
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lectures/13_operators/README.md
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@@ -158,17 +158,17 @@ public class interface) or friend functions (if they need non public access).
You can compile and run these three examples, in which the output stream operators are overloaded as a non-member function, a friend function, and a member function. You can compile and run these three examples, in which the output stream operators are overloaded as a non-member function, a friend function, and a member function.
- [Example 1](overloading_non_member.cpp) - [Example 1 - overloading as a non member function](overloading_non_member.cpp)
- [Example 2](overloading_friend.cpp) - [Example 2 - overloading as a friend function](overloading_friend.cpp)
- [Example 3](overloading_member.cpp) - pay attention to the main function, does it surprise you? - [Example 3 - overloading as a member function](overloading_member.cpp) - pay attention to the main function, does it surprise you?
## 13.10 Summary of Operator Overloading in C++ ## 13.10 Summary of Operator Overloading in C++
- Unary operators that can be overloaded: + - * & ~ ! ++ -- -> ->* - Unary operators that can be overloaded: + - \* & ~ ! ++ -- -> ->\*
- Binary operators that can be overloaded: + - * / % ^ & | << >> += -= *= /= %= ^= &= |= <<= >>= < <= > >= == != && || , [] () new new[] delete delete[] - Binary operators that can be overloaded: + - \* / % ^ & | << >> += -= \*= /= %= ^= &= |= <<= >>= < <= > >= == != && || , [] () new new[] delete delete[]
- There are only a few operators that can not be overloaded: - There are only a few operators that can not be overloaded:
- . (the . operator) - . (the . operator)
- .* (what is this?) - .\* (what is this?)
- ?: (the ternary operator) - ?: (the ternary operator)
- :: (the scope resolution operator) - :: (the scope resolution operator)
- We can’t create new operators and we can’t change the number of arguments (except for the function call - We can’t create new operators and we can’t change the number of arguments (except for the function call
@@ -187,4 +187,4 @@ defining the increment operator on a Complex number.
- Implement the following operators for the Complex class (or explain why they cannot or should not be - Implement the following operators for the Complex class (or explain why they cannot or should not be
implemented). Think about whether they should be non-member, member, or friend. implemented). Think about whether they should be non-member, member, or friend.
operator* operator== operator!= operator< operator\* operator== operator!= operator<