What is this pointer? How can we use it for name conflict resolution? Illustrate with example.

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Suresh Chand · Accepted Answer

this is a keyword that refers to the current instance of the class. There can be 3 main usage of this keyword in C++. used to pass current object as a parameter to another method.can be used to refer current class instance variable.used to declare indexers. One of the main usage of this pointer is to remove name conflict resolution. Let's see an example #include using namespace std; class Distance{ private: float inch; public: void setValue(float inch){ this->inch = inch; } void display(){ cout << 'Distance: ' << inch; } }; int main(){ Distance d1; d1.setValue(10); d1.display(); return 0; } In the above example, We have on class Distance which has member variable inch. We are going to set value on this. void setValue(float inch){ this->inch = inch; } If you closely see setValue function then we have passed inch as parameter and we are setting value also on inch. On this case, compiler get confused because passed parameter and set variable name are same. To fix this issue, We will use this pointer.

What is this pointer? How can we use it for name conflict resolution? Illustrate with example.

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What is this pointer? How can we use it for name conflict resolution? Illustrate with example.

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