From:

Date:

October 7, 2015 13:42Subject:

Re: Views on changing Math-BigInt OO designMessage ID:

CAEvoY41cokDgxU0p-UFNJYCq==J=n+W+FS3QZv8jjbH7PA45TA@mail.gmail.com(Pardon me if it is considered bad form to bring up an old discussion, but I would like to keep this discussion in one place.) I realized that converting Math::BigInt into a subclass will make it impossible to use the following non-OO syntax, which is still supported: $ perl -MMath::BigInt -wle 'print Math::BigInt::badd(3, 5)' 8 Even my soon 20 year old version of The Camel Book does not mention this syntax, so I doubt it is much used anymore, but there could stille be some old code that will break if this syntax no longer works. Way back one could also use $ perl -MMath::BigFloat -wle 'print Math::BigFloat::fadd(3, 5)' +8E+0 but this non-OO syntax was no longer possible when Tels' re-written version of the Math-BigInt distribution was merged into core Perl with the commit 58cde26e9566cfa700a6d18945c4428f22c6be85 from Jun 16 2001. In essence, if I go on with my idea, Math::BigInt::badd(3, 5) will have to be written as Math::BigInt -> badd(3, 5). Is that such a big problem that I should leave the code as it is? Peter 2015-07-29 4:05 GMT+02:00 John Peacock <john.peacock@havurah-software.org>: > On 07/28/2015 09:28 AM, Peter John Acklam wrote: > >> Abigail, thanks for pointing out the implicit loading. I hadn't though >> of that, although hopefully I would have discovered it while testing. >> >> Here is my current idea >> >> - introduce Math::BigNum >> - let Math::Big(Int|Float|Rat) each be a subclass of Math::BigNum >> - for backwards compatibility, let Math::BigFloat load Math::BigInt, and >> let Math::BigRat load Math::BigFloat >> > > Have you audited CPAN to see what modules are already subclassing M::BF, > like my own Math::Currency? I would be interested in getting a pre-release > package, which may finally induce me to fix the locale tests that have been > failing for a very long time. > > John >Thread Previous | Thread Next

- Views on changing Math-BigInt OO design by Peter John Acklam
- Re: Views on changing Math-BigInt OO design by Zefram
- Re: Views on changing Math-BigInt OO design by Shlomi Fish
- Re: Views on changing Math-BigInt OO design by James E Keenan
- Re: Views on changing Math-BigInt OO design by Peter John Acklam
- Re: Views on changing Math-BigInt OO design by Abigail
- Re: Views on changing Math-BigInt OO design by David Bundgaard
- Re: Views on changing Math-BigInt OO design by Abigail
- Re: Views on changing Math-BigInt OO design by Peter John Acklam
- Re: Views on changing Math-BigInt OO design by Aristotle Pagaltzis
- Re: Views on changing Math-BigInt OO design by John Peacock
**Re: Views on changing Math-BigInt OO design**by Peter John Acklam- Re: Views on changing Math-BigInt OO design by Aristotle Pagaltzis
- Re: Views on changing Math-BigInt OO design by bulk88

nntp.perl.org: Perl Programming lists via nntp and http.

Comments to Ask Bjørn Hansen at ask@perl.org | Group listing | About