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Date: Fri, 3 Feb 2012 14:16:45 -0800 (PST)
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Subject: Re: copy on write
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Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:19846

=E5=9C=A8 2012=E5=B9=B41=E6=9C=8814=E6=97=A5=E6=98=9F=E6=9C=9F=E5=85=ADUTC+=
8=E4=B8=8A=E5=8D=886=E6=97=B648=E5=88=8629=E7=A7=92=EF=BC=8CEvan Driscoll=
=E5=86=99=E9=81=93=EF=BC=9A
> On 01/13/2012 03:20 PM, Neil Cerutti wrote:
> > They perform the same action, but their semantics are different.
> > operator+ will always return a new object, thanks to its
> > signature, and operator+=3D shall never do so. That's the main
> > difference I was getting at.

Well, in any associative operation with an identity implemented in a comput=
er language  personally I believe the operator overloading part in C++ is  =
 another teasing trick.

=20
Do we have to work out the algebra here?