[setup] Why does PackageSpecificationhaveaprivatecopy-constructor? (Robert?)

[Robert Collins]

On Wed, 2004-09-01 at 08:12 +0100, Max Bowsher wrote:
> Robert Collins wrote:

> > Have you heard of the 'rule of 3' ?
> 
> No. Apparently I need to do some reading.

http://www.parashift.com/c++-faq-lite/coding-standards.html#faq-27.9

"A class with any of {destructor, assignment operator, copy constructor}
generally needs all 3"

Cheers,
Rob
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