Which operators cannot be overloaded in C++?

In C++, there are several operators that cannot be overloaded due to various reasons such as maintaining language consistency, preventing ambiguity, and ensuring the integrity of the language. Here are the operators that cannot be overloaded:

Member Access Operators

• .` (Member access or dot operator): Used to access members of a class or structure125.

Scope and Type Operators

• :: (Scope resolution operator): Used to specify the scope of a identifier125.
• sizeof (Size of operator): Returns the size of an object or data type, evaluated by the compiler125.
• typeid (Object type operator): Used to obtain the type_info of an expression, evaluated by the compiler125.

Conditional Operator

• ?: (Ternary or conditional operator): A shorthand for a simple if-else statement125.

Member Pointer Operator

• *`.`** (Pointer to member operator): Used to access a member of a class through a pointer to member125.

These operators are restricted from being overloaded to maintain the consistency and safety of the C++ language.