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Postings from May 2001
--- Damian Conway <damian@mail.csse.monash.edu.au> wrote: > It's probably just a matter of coding what you actually mean. > In Perl 5 and 6 your version means "if $fh is true in *any* > possible way...", whereas you seem to want "if $fh is defined", > which is: Hmm. I can easily see this producing incomprehensible code when spread across large systems. To wit, those developers used to "0 means false" semantics seeings a scalar that they just know has a 0 in it and wondering why the branch isn't doing what they know it should. This will have to be addressed using a coding convention of some sort, I suppose. What's the verbose way to query the "is true" property of a thingy? > > Can 'undef' valued thingys have properties > > Yes. > > > and functions? > > No. Aren't things like memoizability essentially properties? =Austin __________________________________________________ Do You Yahoo!? Yahoo! Auctions - buy the things you want at great prices http://auctions.yahoo.com/Thread Previous | Thread Next