// Fig. 3.24: fig03_24.cpp
// Using the unary scope resolution operator.
#include <iostream>

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

#include <iomanip>

using std::setprecision;

// define global constant PI
const double PI = 3.14159265358979;

int main()
{
   // define local constant PI
   const float PI = static_cast< float >( ::PI );

   // display values of local and global PI constants
   cout << setprecision( 20 )
        << "  Local float value of PI = " << PI
        << "\nGlobal double value of PI = " << ::PI << endl;

   return 0;  // indicates successful termination

} // end main



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