El 09/03/2010 06:53 a.m., Emil Dotchevski escribió:
2010/3/8 Agustín K-ballo Bergé <kaballo86@hotmail.com>:
· boost/la/all.hpp conflicts with boost/assign/list_of.hpp if Boost.Assign is included first. I think this has to do with missing includes in a few headers.
What do you mean missing includes? All (Boost) LA headers compile on their own (this is explicitly tested in the libs/la/test/Jamfile.)
Here is a small example that does not compile, however different from what I initially report. it may be even illegal code? #include <boost/la/col.hpp> #include <boost/la/mat.hpp> #include <boost/la/vec.hpp> int main() { using namespace boost::la; mat< float, 4, 4 > m = {}; vec< float, 4 > v = {}; ( m | col< 0 >() ) = v; } I don't have access to my source code right now, but as soon as I do I will look for the real conflict between Boost.LA and Boost.Assign, which I have fixed by just changing the inclusion order.
· Expressions like rotx_matrix() * roty_matrix() don't work. The temporaries have to be stored in proper matrix variables first. Apparently its result type does not model a valid matrix? (just guessing).
Do you have code that demonstrates the problem? Which compiler? The following works for me: [snip]
I should have provided a full working example. Your code works. Mine does not have `using namespace boost::la` which is what causes the problem. Is not the first time I get bitten by this, but I'm waiting for `namespace operators` to go `using`. Sorry for the noise.
· During RangeEx review, the use of views and algorithms was widely discussed. It would be good for Boost.LA to follow the same conventions decided back then.
I'm not sure I understand your point, or maybe you need a different example. In (Boost) LA, m|transpose returns a transposed mutable reference to m.
I'm referring to points 4 and 5 here: http://old.nabble.com/-Review-Results--Range.Ex-library-accepted-into-boost-...
· I would like to have X, Y, Z and W placeholders be convertible to the axis versor. However I don't think this can be actually implemented. Maybe something like versor<float,3>( X ) or unit_vector<float,3>( X ) would be better.
Could you provide an example of what you want exactly?
vec< float, 3 > const x_axis = unit_vector< float, 3 >( X ); // x_axis == { 1.f, 0.f, 0.f }
Emil Dotchevski
Agustín K-ballo Bergé.- http://talesofcpp.blogspot.com