Re: user-defined function & string file name

[Ethan A M. <merritt@u.washington.edu>]

On Wednesday 29 June 2005 04:49 pm, Hans-Bernhard Br=F6ker wrote:
> In-line expansion wouldn't be needed.  A simple ptr argument where
> try_to_get_string() can store the result of its attempted evaluation
> would be quite enough --- it may have to be renamed then, though, to
> evaluate_expression_of_as_yet_unknown_type() or something like that :-)

We have such a function now. Its name is const_express().
try_to_get_string() is a just wrapper that allows it to work even
if you configure without support for string variables.  Using
const_express() directly and checking the returned value is exactly
what I meant by "in-line expansion".  So I think we are both on=20
the same page.

[and yes, I've always wondered why it was called const_express(),
 rather than evaluate_expression or the like]=20


=2D-=20
Ethan A Merritt
Biomolecular Structure Center
University of Washington, Seattle 98195-7742