Re: [boost] Interested in a generic safe n-dimensional matrix/vector library?

Subject: Re: [boost] Interested in a generic safe n-dimensional matrix/vector library?
From: Gregory Crosswhite (gcross_at_[hidden])
Date: 2011-02-21 16:03:03

Cool! :-) Have you looked at Blitz++? You might find it easier to start 
with the code that they have there and modify it to take advantage of 
c++0x features than to start from scratch.

Cheers,
Greg

On 2/21/11 12:19 PM, Тимофей Игнатьич wrote:
> c++0x features allow us to implement some nice stuff:
>
> 	- Safe variadic functions with parameter count checking. For example consider a constructor of  the N dimensional vector of T takes only N farameters that are convertable to T and fails othervise:
>
> 			vector<T, N>  v(/*...N parameters convertable to T...*/);
> 			vector<float, 3>  v(1,2,3); // good
> 			vector<float, 4>  v(1.f,2.f); //fails
> 			vector<int, 3>  v(1,2,3,4); //fails
> 			vector<int, 4>  v(1,2,3,4); //good
> 		
> 		or an N dimensional cross product function that takes exactly N-1 vectors of dimension N:
> 		
> 			cross(v1,v2,v3,/*...*/, vn-1);
>
> 		Please note that N is arbitrary positive integer and is only restricted by compiler's template recursion depth.
>
> 	- Same type comversion as for fundamental types. This means that char multiplied by int gives int result and int multiplied by float gives float result. vectors work exactly the same:
>
> 			vector<float, 3>  vf;
> 			vector<int, 3>  vl;
> 			vector<short, 3>  vs;
> 			vector<double, 3>  vd;
>
> 			vi*vf; //returns vector<float, 3>
> 			vf*vd; //returns vector<double, 3>
> 			vs*vi; //returns vector<int, 3>
>
> Among other notable features  are matrix matrix and vector matrix multiplications, component vise addition/substraction/multiplication/division, dot product, matrix inversion, matrix determinant calculation, etc.
> I want to know if there is any interest in such a library in boost community, and if so to make it available for public inspecion and criticism.
>
>
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