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Subject: Re: [boost] different matrix library?
From: joel (joel.falcou_at_[hidden])
Date: 2009-08-17 12:24:07

DE wrote:
> first, it does use crtp
> i omitted template parameters for simplicity
> there is no performance degradation
OK then.
> if you supply an actual object it will be passed by reference
> otherwise the result of an expression will be copied to a temporary
> and that temorary will be passed by reference (probably that's just
> what the user needs)
It may break user expectancies about performance tough.
> finally if the user is advanced, he may write
> template<typename expression_type>
> void foo(const symmetric_matrix_expression<expression_type> &m);
> perfectly readable, typesafe, excellent performance, easy to
> understand and implement
> just this moment there is a discussion about enable_if issues
> you might be intereste
On the ML ? It's abotu C++0X in GCC4.5 support of partial function
template parameters, nothing to worry about.

Joel Falcou - Assistant Professor
PARALL Team - LRI - Universite Paris Sud XI
Tel : (+33)1 69 15 66 35

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