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overring functions

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Learn_CPP_Programming_Deep_Dive/Section 15 Polymorphism/Function_overloading
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	`1`	`+#include <iostream>`
	`2`	`+`
	`3`	`+using namespace std;`
	`4`	`+`
	`5`	`+class Parent`
	`6`	`+{`
	`7`	`+ public:`
	`8`	`+ void display()`
	`9`	`+ {`
	`10`	`+ cout<<"Display from base"<<endl;`
	`11`	`+ }`
	`12`	`+`
	`13`	`+ void preview()`
	`14`	`+ {`
	`15`	`+ cout<<"Preview from Parent"<<endl;`
	`16`	`+ }`
	`17`	`+};`
	`18`	`+`
	`19`	`+class Child: public Parent`
	`20`	`+{`
	`21`	`+ public:`
	`22`	`+ void display() // overriding`
	`23`	`+ {`
	`24`	`+ cout<<"Display from Child"<<endl;`
	`25`	`+ }`
	`26`	`+`
	`27`	`+ void preview(int x) // function overloading`
	`28`	`+ {`
	`29`	`+ cout<<"Preview from Child overloaded"<<endl;`
	`30`	`+ }`
	`31`	`+};`
	`32`	`+`
	`33`	`+`
	`34`	`+int main(void)`
	`35`	`+{`
	`36`	`+ Child c;`
	`37`	`+ c.display();`
	`38`	`+ c.preview(10);`
	`39`	`+ c.Parent::preview();`
	`40`	`+`
	`41`	`+ return 0;`
	`42`	`+}`

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