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Postings from September 2011
You know how one sends e-mail, and then realises immediately afterwards the
error or omission:
On Fri, Sep 02, 2011 at 07:40:14PM +0100, Nicholas Clark wrote:
> http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/9509/msg00666.html
: The main win at this point is that we can say
:
: sub AAA () { 1; }
: sub BBB () { 2; }
:
: and the user can say AAA + BBB and get 3.
:
: I'm not quite sure how this interacts with autoloading though. I fear
: POSIX.pm will need to say
:
: sub E2BIG ();
: sub EACCES ();
: sub EAGAIN ();
: sub EBADF ();
: sub EBUSY ();
: ...
: sub _SC_STREAM_MAX ();
: sub _SC_TZNAME_MAX ();
: sub _SC_VERSION ();
:
: unless we can figure out how to efficiently declare a default prototype
: at import time. Meaning, not using eval. Currently
:
: *foo = \&bar;
:
: (the ordinary import mechanism) implicitly stubs &bar with no prototype if
: &bar is not yet declared. It's almost like you want an AUTOPROTO to
: go with your AUTOLOAD.
:
: Another thing to rub one's 5 o'clock shadow over is that there's no way
: to apply a prototype to a method call at compile time.
:
: And no, I don't want to have the
:
: sub howabout ($formal, @arguments) { ... }
:
: argument right now.
:
: Larry
So, Larry does mention POSIX in it, but not for the reason we are discussing
here. And it took another 10 years to find a solution to the problem with
prototypes on constants in POSIX (and all the other modules)
Nicholas Clark
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