List of operators that cannot be overloaded 1) Scope Resolution Operator (::) 2) Ternary or Conditional Operator (?:) 3) Member Access or Dot operator (.)
7. Which of the following operator cannot be overloaded? Explanation: ?:, :: and . cannot be overloaded +, -, % can be overloaded.
The = and & C++ operators are overloaded by default. For example, you can copy the objects of the same Class directly using the = operator.
Explanation: Both arithmetic and non-arithmetic operators can be overloaded.
The correct answer is option D) both functions and operators can be overloaded. Explanation: A programmer could use operators with specific user-defined forms. Every overload operators are functions.
We can overload an operator as its type only i.e., a unary operator cannot be overloaded as a binary operator and vice versa. We can't overload operators that are not a part of C++. We can perform operator overloading only in user-defined classes.
No, Dot (.) operator can't be overloaded. Doing so will cause an error.
This means C++ has the ability to provide the operators with a special meaning for a data type, this ability is known as operator overloading. For example, we can overload an operator '+' in a class like String so that we can concatenate two strings by just using +.
Note: In C++, many standard library functions are overloaded. For example, the sqrt() function can take double , float , int, etc. as parameters. This is possible because the sqrt() function is overloaded in C++.