Re: valarray

[Nathan Myers <ncm@cygnus.com>]

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Gabriel Dos Reis wrote:
> 
> >>>>> «Jochen», Jochen K"upper <jochen@uni-duesseldorf.de> wrote:
> Jochen> is there anything like the valarray templates with egcs. I did not 
> Jochen> find it when looking through the header files.
> 
> Jochen> As I understand from other sources (like Stroustrups The C++ Programming
> Jochen> Language) this is part of the standard library.
> 
> Actually I submitted a (almost) complete implementation, but you have
> to wait since it wasn't fully tested on all plaforms supported by egcs. It
> will be included in the newly rewritten libstdc++. I don't know when.

You should know that (as much as we appreciate Gabriel's contribution) 
that valarray is generally a poor way to accomplish what it was intended 
for.  A much better choice is something like Blitz++ or its kin, which you 
can find at (or by following links from)

  http://monet.uwaterloo.ca/blitz/

To perform well, valarray really needs special compiler support, and because
projects like Blitz++ have been so successful, valarray is unlikely ever to 
get that support.

Nathan Myers
ncm@cygnus.com