Unary - operator Overloading in c++

Posted Date: 24 Aug 2009	Resource Type: Code Snippets	Category: General
Author: Santosh Kumar Singh	Member Level: Gold
Rating:	Points: 5

////////////////////////////////////////
#include
#include

////////////////////////////////////////
// The ItemQty class.
////////////////////////////////////////
class ItemQty
{
int onhand;
char desc[25];

public:
ItemQty(int oh, char *d)
{ onhand = oh; std::strcpy(desc, d); }
void display() const
{ std::cout << '\n' << desc << ": " << onhand; }

// Overloaded unary - operator.
int operator-() const
{ return -onhand; }
};

////////////////////////////////////////
// The main() function.
////////////////////////////////////////
int main()
{
ItemQty item1(100, "crankshaft");
ItemQty item2(-50, "driveshaft");

item1.display();
std::cout << '\n' << -item1; // invoke the overloaded -

item2.display();
std::cout << '\n' << -item2; // invoke the overloaded -

return 0;
}

Responses

Author: Miss Meetu Choudhary 27 Aug 2009

Member Level: Diamond Points : 2

Must add description to your code.

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