[issue2819] Full precision summation

[Mark Dickinson]

Mark Dickinson <dickinsm at gmail.com> added the comment:

Ensuring correct rounding isn't as onerous as I expected it to be.  
crsum.py is a snippet of Python code showing how to add nonadjacent floats 
and get the correctly rounded result.

Added file: http://bugs.python.org/file10351/crsum.py

__________________________________
Tracker <report at bugs.python.org>
<http://bugs.python.org/issue2819>
__________________________________