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From: Larry Evans (cppljevans_at_[hidden])
Date: 2005-03-08 14:23:48

On 03/08/2005 06:26 AM, Tobias Schwinger wrote:
> I use 'apply', 'apply_one' and 'apply_but' functions that allow me to
> apply functors to all elements, one element and all but one elements,
> respectively (I use different versions for both static and dynamic
> indices and both static and dynamic functors):

What does "static" and "dynamic" mean here? Does static mean
"evaluable at compile time" and "dynamic" means otherwise?


> - Do you know the Boost.Assign technique ?
> I use a similar approach to have a nice syntax for initialization and
> inlining that works within expressions:
> my_quaternion = n_x * sin_half_a
> , n_y * sin_half_a
> , n_z * sin_half_a
> , cos_half_a;
> and
> vector_slice<0,3> (my_quaternion)
> = (vec_inl| n_x,n_y,0.0) * sin_half_a;
Never seen this (vec_inl| n_x,n_y,0.0). Looks like
a set expression or lambda expression. Could you
provide a reference. I searched:

for the character '|' but got no results.

> ( The 'my_quaternion' variable from the examples is a four-dimensional
> vector, _not_ a boost::quaternion. )
Does "four-dimensional" mean "length is four" or "accessing a scalar
requires four indices passed to the operator()", e.g.


or something similar (I want to call the above operator() the
the index operator, but can't for obvious reasons) ?

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