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From: Johan Nilsson (r.johan.nilsson_at_[hidden])
Date: 2007-08-23 02:22:21

Steven Watanabe wrote:
> Andrey Semashev <andysem <at>> writes:
>> Generally speaking, you are right here. But first, there are many
>> objects that don't throw on copying. And second, it's not always
>> possible to make a copy beforehand. See one of my previous posts for
>> an example (inserting into container yelds an iterator that is to be
>> used in the scope-exit block). So I think the best way is to leave
>> the decision up to user.
> I don't understand. Why can't you make a copy
> right before the scope exit block? I think that
> for ScopeExit, always passing by reference is
> correct. At the very least it should be the default.

Passing by reference definitely gets +1 from me.

If possible, and does not uglify the syntax, making it default only would be

/ Johan

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