Re: PARI 2.6 syntax 1: iferr/iferrname

[Bill Allombert <Bill.Allombert@math.u-bordeaux1.fr>]

On Thu, Mar 07, 2013 at 08:51:23PM +0100, Bill Allombert wrote:
> On Fri, Feb 15, 2013 at 10:22:08PM +0100, Bill Allombert wrote:
> > On Fri, Feb 15, 2013 at 06:32:47PM +0100, Karim Belabas wrote:
> > > * Bill Allombert [2013-02-14 22:42]:
> > > [...]
> > > 
> > > I am not sure that two separate functions iferr / iferrname are useful.
> > > We could have a single iferr() -- corresponding to current iferrname --
> > > with the following syntax:
> > 
> > A possibility is to discriminate on the number of arguments, like 'if' do.
> 
> While discussing with Karim, we decided to remove iferrname and allows:
> 
> iferr(seq1,E,seq2) \\ unchanged
> iferr(seq1,E,seq2,pred) \\ only trap the error if pred is true

They have been implemented in git rev b15e4d8677

Cheers,
Bill.