oln::math Namespace Reference

Useful functions. More...

Classes
struct	f_sqr
	Square fctor. More...
struct	f_abs
	Absolute value fctor. More...
Functions
template<class T> const T	sqr (const T &val)
	Square function.
template<class T> const T	abs (const T &val)
	Absolute value function.
template<typename DestValue, typename I, typename J> DestValue	dot_product (const I &i, const J &j)
	Dot product.

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Detailed Description

Useful functions.

Todo:

FIXME: I'm not proud of the code below think it could be better...

FIXME: this code sounds really odd. Why does the operator() take value<Self> instead of Self directly ? FIXME: Self should be renamed into Exact.

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Function Documentation

template<typename DestValue, typename I, typename J> DestValue dot_product (  const I &  i, const J &  j )

Dot product. #include <oln/math/macros.hh> #include <ntg/all.hh> int main() { ntg::int_u8 i(3), j(4); // Print "12" std::cout << oln::math::dot_product<ntg::float_s>(i, j) << std::endl; ntg::rgb_8 blue(0, 0, 200), yellow(0, 30, 10); // Print "2000" std::cout << oln::math::dot_product<ntg::float_s>(blue, yellow) << std::endl; } Definition at line 142 of file olena/oln/math/macros.hh. { typedef typename mlc::if_<ntg_is_a(I, ntg::vectorial)::ret, internal::f_dot_product_v<DestValue, I, J>, internal::f_dot_product_nv<DestValue, I, J> >::ret fctor; return fctor::product(i, j); }

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