everest% CC pmain1.C package.C box.C
pmain1.C:
package.C:
box.C:
everest% 

everest% a.out
Debug: default Box constructor called
Debug: default Box constructor called
Debug: default Box constructor called
p1: This package has length=0.000000, height=0.000000 & width=0.000000
   This package is empty
p2: This package has length=2.000000, height=2.000000 & width=2.000000
   This package is empty
p3: This package has length=2.100000, height=3.000000 & width=2.500000
   This package is empty

Store:
store p1 in p2, r=1
store p2 in p3, r=1
This package has length=2.100000, height=3.000000 & width=2.500000
   This package contains the following:
This package has length=2.000000, height=2.000000 & width=2.000000
   This package contains the following:
This package has length=0.000000, height=0.000000 & width=0.000000
   This package is empty

Content:
This package has length=0.000000, height=0.000000 & width=0.000000
   This package is empty

Empty:
p3: This package has length=2.100000, height=3.000000 & width=2.500000
   This package is empty
*ptr: This package has length=2.000000, height=2.000000 & width=2.000000
   This package contains the following:
This package has length=0.000000, height=0.000000 & width=0.000000
   This package is empty
everest%