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Generally the operators that can't be overloaded are like that because overloading them could and probably would cause serious program errors or it is syntactically not possible,
For instance the sizeof operator returns the size of the object or type passed as an operand. It is evaluated by the compiler not at runtime so you can not overload it with your own runtime code. It is syntactically not possible to do. Even if it was pointer arithmetic relies on the correct value being returned by this operator since the compiler already knows how to calculate the correct value all overloading would do would be to allow you to calculate an incorrect value, something that would almost certainly lead to the program not working correctly.
Scope resolution and member access operators work on names rather than values. C++ has no syntax for writing code that works on names rather than values so syntactically these operators can not be overridden.
Again what useful purpose would overloading the conditional operator produce? I can think of none.
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What are the disadvantages of scope resolution operator?
it cannot be operator overloaded.
What is the operator that cannot be overloaded?
There are 5 operators which cannot be overloaded. They are: * .* - class member access operator * :: - scope resolution operator * . - dot operator * ?:: - conditional operator * Sizeof() - operator Note:- This is possible only in C++.
What are special operators in c plus plus?
The only "special" operators in C++ are those that cannot be overloaded. That is; the dot member operator (.), pointer to member operator (.*), ternary conditional operator (:?), scope resolution operator (::), sizeof() and typeof().
Which operator is used 2 access ahidden global variables?
To access a hidden global variable, use the scope resolution operator ::
Which operator not overloaded in c plus plus?
The if statementex.if (index < 5)printf("Index is less than 5\n");elseprintf("index is greater or equal to 5\n");(You can also replace the "if" with a "?" and the "else" with a "?" -- no, that would be syntax error)
What are the disadvantages of scope resolution operator?
it cannot be operator overloaded.
Can the scope resolution operator be overloaded in C plus plus?
No.
What is the operator that cannot be overloaded?
There are 5 operators which cannot be overloaded. They are: * .* - class member access operator * :: - scope resolution operator * . - dot operator * ?:: - conditional operator * Sizeof() - operator Note:- This is possible only in C++.
Which c plus plus operators cannot be overloaded?
1. Member-of operator (.) 2. Pointer-to-member-of operator (.*) 3. Ternary condition operator (?:) 4. Scope resolution operator (::) 5. sizeof operator 6. typeid operator
What are special operators in c plus plus?
The only "special" operators in C++ are those that cannot be overloaded. That is; the dot member operator (.), pointer to member operator (.*), ternary conditional operator (:?), scope resolution operator (::), sizeof() and typeof().
What is the operator that cannot be overloaded in c plus plus and java?
conditional operator , size of operator , membership operator and scope resulation operator can not be overload in c++
Use of scope resolution operator in C programming?
:: operator can not be used in C.
Which operator is allow to access hidden global variable?
The scope resolution operator, ::, overrides local scope and allows access to objects that are hidden due to global to local scope rules.
Which operator is used 2 access ahidden global variables?
To access a hidden global variable, use the scope resolution operator ::
How do you use the scope resolution operator in c?
You use the scope resolution operator (::) whenever there is ambiguity as to which function or member you are referring to. For instance, if two functions in two separate namespaces have the same signature, you must use scope resolution to call the correct version of the function. Similarly, when calling a base class method from a derived overridden method, you must use scope resolution to ensure the base class method is called from the override.
Which operator not overloaded in c plus plus?
The if statementex.if (index < 5)printf("Index is less than 5\n");elseprintf("index is greater or equal to 5\n");(You can also replace the "if" with a "?" and the "else" with a "?" -- no, that would be syntax error)
Which operator is allow to access hidden global variable in c plus plus?
A hidden global variable must be one that has its scope blocked by a local variable of the same name. To access the hidden variable, use the scope resolution operator ::, such as is ::variable_name. If there is another reason for the hidden status, please clarify and restate the question.
