Create the necessary operators that allow Box objects to be used in if statements such as these: if (my_box) ... if (!my_other_box) ... A Box is equivalent to true if it has a nonzero volume; if its...

Create the necessary operators that allow Box objects to be used in if statements such as these:

if (my_box) ...

if (!my_other_box) ...

A Box is equivalent to true if it has a nonzero volume; if its volume is zero, a Box should evaluate to false. Create a small test program that shows your operators work as requested.