Re: [Lush-users] understanding the index C API [was: On the different ways ...]

[Ralf J. <jue...@cs...>]

On Fri, 2005-02-11 at 10:37, Ralf Juengling wrote:
> Yes. 
> The api (3) has become rather convoluted over the years.
> It is defined from several sources:
> 
> - The "light data structures"
>         idx and srg, defined in header.h
>      Vclass_object and Cclass_object defined in dh.h
>         
> - The macros in idxmac.h/idxops.h/idxsquops.h/check_func.h.
>   I could not even tell you which macros 
>   are currently obsolete...

Speaking of obsolete functions/macros: There are a few 
definitions in header.h that look obsolete, too:

LUSHAPI char *not_a_nrvector(at*);
LUSHAPI char *not_a_nrmatrix(at*);
LUSHAPI flt *make_nrvector(at*,intg,intg*);
LUSHAPI flt **make_nrmatrix(at*,intg,intg,intg*,intg*);

and the corresponding members of struct index:

  flt **nr0;	/* The Numerical Recipes pointers (base 0) */
  flt **nr1;    /* The Numerical Recipes pointers (base 1) */

A 'grep -r make_matrix .' in the lush source tree revealed 
that make_matrix is not used anywhere. There also is no
counterpart in the Lisp API, and the seemingly related 
functions 'nrmatrixp' and 'nrvectorp' are declared obsolete.

So I assume all this is obsolete and can go away without 
causing any harm?

Ralf