[Libguestfs] [PATCH v3 4/8] mllib: Add some imperative list manipulation functions.

[Richard W.M. Jones]

On Thu, Jul 07, 2016 at 07:00:46PM +0200, Pino Toscano wrote:
> On Thursday 07 July 2016 17:30:03 Richard W.M. Jones wrote:
> > This adds imperative list manipulation functions inspired by Perl.
> > The functions are passed list refs which get updated in place.
> > 
> > This allows us to replace some awkward pure functional code like:
> > 
> >   let xs = ys in
> >   let xs = if foo then xs @ zs else xs in
> > 
> > with:
> > 
> >   let xs = ref ys in
> >   if foo then append xs zs;
> > ---
> 
> TBH I've always found the "shift" and "unshift" naming of Perl
> functions slightly awkward, but can live with them. (At least the
> new functions do the same as Perl ones.)

I agree, but for consistency I thought it was better to keep those
names rather than trying to think up new ones which would be different
from everything else.

Rich.


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