[boost] Re: non-member reset()

From: Daniel Frey (d.frey_at_[hidden])
Date: 2005-01-28 03:38:59

David Abrahams wrote:
> Daniel Frey <d.frey_at_[hidden]> writes:
> 
> 
>>David Abrahams wrote:
>>
>>>Rob Stewart <stewart_at_[hidden]> writes:
>>>
>>>
>>>>swap() is typically as fast as or faster than copy assignment, 
>>>
>>>Not for many types that one might like to reset, such as pointers,
>>>shared_ptr<T>, and integral types.
>>
>>What about exception safety guarantees of assignment vs. swap? 
> 
> 
> What about 'em?  Speaking generally, both are basic guarantee
> operations.

I thought that swap is often (not always) a function which  doesn't 
throw, e.g. containers' x.swap( y ). If it is, it would make reset a 
function with the strong instead of the basic exception guarantee.

But then, this might not be general enough to be worth the trouble... 
OK, forget about it :)

Regards, Daniel