Subject: Re: [boost] different matrix library?
From: DE (satan66613_at_[hidden])
Date: 2009-08-17 12:49:24
on 17.08.2009 at 20:28
joel wrote :
> What if you need a function that, this need, need to pass an expression
> which is statically allocated or with any other policies on ?
void foo(const matrix_expression<expression_type> &m);
//^^this type of expression is the least restrictive
> You can't decently generate the combinatorial nbr of expression class
> this way ?
matrix<double> m(3, 3); //dynamically allocated
matrix<double, 3, 3> static_m; //statically allocated
it's just an example
what else? shape? define appropriate types (using CRTP of course!)
again, my point is: since you need to implement policies themselves
somewhere and their relationship and behavor (possibly by specializing
some templates) why not to do that by defining distinct types with
it's a very simple, stable, scalable, easily maintainable design
and more: it is easier to understand for users
oh and it works also
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