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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.
What else can I help you with?
Use of scope resolution operator in C programming?
:: operator can not be used in C.
Can the scope resolution operator be overloaded in C plus plus?
No.
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 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 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++.
Why scope resolution is required in c?
Scope resolution is not required in C because C does not support namespaces. All non-local names are declared in the global scope.
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.
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++
What is the memory management operator in c plus plus?
There is no memory management operator in C++ -- it is an unmanaged language. You use the C++ new operator to allocate memory, and use the C++ delete operator to release previously allocated memory.
When do we use an address operator in c'?
In C we use & operator while giving address of some variable to some pointer variable. & operator is also used in scanf().
What is scope resolution in c plus plus?
Scope resolution allows the programmer to disambiguate between names that are common to two or more namespaces. For instance, if you imported two namespaces that both exposed different string classes, the compiler would not know which string class to use unless you use scope resolution to differentiate them. Scope resolution can also be used to differentiate between the different function overrides within a class hierarchy. By default, the most-derived function override is always executed implicitly, but that override may choose to invoke one or more of its base class overrides using scope resolution. struct a { virtual void foo() {/*...*/} }; struct b : a { virtual void foo() override; }; void b::foo() { a::foo(); // explicitly invoke base class method using scope resolution. // ...specialisation code goes here... }
What is the operator of power in c plus plus?
There is no "power" operator in C or C++. You need to the use the math library function pow().
