Initial commit

c++/Others/Another example of a conversion function.cpp

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+Another example of a conversion function
+#include <iostream>
+using namespace std;
+class Power {
+  double b;
+  int e;
+  double val;
+public:
+  Power(double base, int exp);
+  Power operator+(Power o) {
+    double base;
+    int exp;
+    base = b + o.b;
+    exp = e + o.e;
+    Power temp(base, exp);
+    return temp;
+  }
+  operator double() { return val; } // convert to double
+};
+Power::Power(double base, int exp)
+{
+  b = base;
+  e = exp;
+  val = 1;
+  if(exp==0) 
+     return;
+  for( ; exp>0; exp--) 
+     val = val * b;
+}
+int main()
+{
+  Power x(4.0, 2);
+  double a;
+  a = x;              // convert to double
+  cout << x + 100.2;  // convert x to double and add 100.2
+  cout << "\n";
+  Power y(3.3, 3), z(0, 0);
+  z = x + y;          // no conversion
+  a = z;              // convert to double
+  cout << a;
+  return 0;
+}