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Glas :Re: [glas] MTL3 design ? [was MTL project site is up] |
From: Karl Meerbergen (Karl.Meerbergen_at_[hidden])
Date: 2005-02-03 09:32:36
On Thursday 03 February 2005 14:48, David Abrahams wrote:
> Karl Meerbergen <Karl.Meerbergen_at_[hidden]> writes:
> >>Whether or not it's expected or intuitive is highly subjective. The
> >>question is: will it prevent enough bugs to justify the
> >>inconvenience? IMO the answer is no.
> >
> > I think the answer is yes. I have encoutered it recently at FFT.
I do not recall the details. If I recall a matrix was resized, because the
right-hand side had a wrong size. This created some problems elsewhere when
the vector was used after the copy.
There are different ways to solve such problems:
1) assert after the assignment to check whether the size has changed
2) have an assignment function that does not allow resizing.
Which one do we want, or do we allow both?
I agree with Dave that this is not part of the Vector concept, it is merely a
behaviour of the assignment. Is this what you meant, Dave?
Karl