cd Boost-Python-Examples/Examples/operators
make
python3

Python 3.5.2 (default, Nov 17 2016, 17:05:23)
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import operators
>>> f1 = operators.FilePos()
FilePos default constructor
>>> f2 = operators.FilePos()
FilePos default constructor
>>> 
>>> f1 + 3
FilePos copy constructor
FilePos default constructor
FilePos copy constructor
<operators.FilePos object at 0x7f3aa30c9c10>
>>> 3 + f2
FilePos copy constructor
FilePos copy constructor
FilePos default constructor
FilePos copy constructor
<operators.FilePos object at 0x7f3aa30d4440>
>>> 
>>> f1 - f2
FilePos copy constructor
FilePos copy constructor
0
>>> 
>>> f1 - 3
FilePos copy constructor
FilePos default constructor
FilePos copy constructor
<operators.FilePos object at 0x7f3aa30c9c10>
>>> 
>>> f1 += 3
>>> f1 -= 5
>>> f1 < f2
FilePos copy constructor
FilePos copy constructor