specfunc error analysis - generated and propagated errors.

[Linas Vepstas]

On Fri, Sep 10, 2004 at 08:58:44PM +0100, Brian Gough was heard to remark:
> Jonathan G. Underwood writes: 
>  > It would make for a much cleaner design of the specfun code, and
>  > also remove the runtime computational overhead of (most-times often
>  > unused) the forward error analysis.
> 
> If a foo_e function was eating a lot of time in my application, I
> would tweak GSL by declaring it "extern inline". The calculation of
> the error estimate would then drop out of the corresponding foo
> function (by data flow analysis).  

The user would need to include the appropriate chunk of gsl source
code in thier source code to make this work.   gcc can only inline
source code, not object code.  

--linas