fig18_08.cpp

这是C＋＋编程经典的书上实例的源代码。 （英文名是《C＋＋ how to program》第3版）

// Fig. 18.8: fig18_08.cpp
// An example of a union 
#include <iostream>

using std::cout;
using std::endl;

union Number {
   int x;
   double y;
};

int main()
{
   Number value;
	
   value.x = 100;
   cout << "Put a value in the integer member\n"
        << "and print both members.\nint:   " 
        << value.x << "\ndouble: " << value.y << "\n\n";
	
   value.y = 100.0;
   cout << "Put a value in the floating member\n" 
        << "and print both members.\nint:   " 
        << value.x << "\ndouble: " << value.y << endl;
   return 0;
}




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