[perl #74092] [BUG] Strange error when declaring a sub with an unknown trait in Rakudo

# New Ticket Created by "Carl Mäsak" # Please include the string: [perl #74092] # in the subject line of all future correspondence about this issue. # http://rt.perl.org/rt3/Ticket/Display.html?id=74092 > rakudo: sub yulia is krassivaya { } rakudo c06062: OUTPUT«Could not find sub &substr [

Re: [perl #74030] Perl6 doesn't run if invoked from external directories

Am 06.04.2010 18:28, schrieb Moritz Lenz via RT: Franz Nagel wrote: Am 03.04.2010 21:08, schrieb Moritz Lenz via RT: Did you run 'make install', and try to launch the installed executable? I didn't build but installed the precompiled Windows version. ( http://sourceforge.ne

Re: A common and useful thing that doesn't appear to be easy in Perl 6

Em Ter, 2010-04-06 às 22:19 -0700, Damian Conway escreveu: > > I kinda hope we can get a bit further away from the machine code > > level of reality one of these decades. Perl 6 should not be > > optimized for C semantics. > Agreed. But it should at least support those who need to work at > the ma

Re: A common and useful thing that doesn't appear to be easy in Perl 6

Larry mused: > Alternatively, maybe there should be some way to express infinite sets. > Not sure I like the idea of an infinite junction, but something resembling: > >    subset PowersOf2 of Int where any(1,2,4...*) >    enum Perms of PowersOf2 ; >    say Exec;  # 4 > > Presumably the series in t

Re: A common and useful thing that doesn't appear to be easy in Perl 6

Daniel Ruoso pointed out: > Using bitsets in Perl 6 is just as easy as using in Perl 5 -- which > happens to be the same as using in C, but it's not C... > > constant PERM_WRITE = 0b0001; > constant PERM_READ = 0b0010; > constant PERM_EXEC = 0b0100; > constant PERM_NAMES = { PERM_WRITE => 'Write

Re: A common and useful thing that doesn't appear to be easy in Perl 6

Damian Conway wrote: > I do like the idea of being able to specify the sequence of values of an > enumeration by using a series of some kind. > > And I must say the one that feels most natural is the one that plays on > the equivalence of underlying equivalence of enums and constants, namely: > >  

Re: A common and useful thing that doesn't appear to be easy in Perl 6

On Wed, Apr 07, 2010 at 06:33:46AM -0700, Jon Lang wrote: : That said, don't we already have a means of assigning specific values : to individual members of an enum? I forget the exact syntax, but I : believe that it involves an assignment operator within the : enumeration. Mind you, this is from

Re: A common and useful thing that doesn't appear to be easy in Perl 6

Jonathan Lang wrote: > Wouldn't that be C< = 0...* >? Indeed. Thanks for the correction. > That said, don't we already have a means of assigning specific values > to individual members of an enum?  I forget the exact syntax, The exact syntax is: enum Perms [Read => 1, Write => 2, Exec =>

Re: A common and useful thing that doesn't appear to be easy in Perl 6

> We could make enum declarators even more like constant declarators > by using a pseudo assignment.  Then we could use = instead of parens: > >    enum Perms = Z=> 1,2,4...*; Hmm. That doesn't seem very like constant declarators. In a constant declarator, the constant appears on the lhs and

r30332 - docs/Perl6/Spec

Author: lwall Date: 2010-04-07 20:07:45 +0200 (Wed, 07 Apr 2010) New Revision: 30332 Modified: docs/Perl6/Spec/S02-bits.pod Log: [S02] some clarifications of the desired semantics of buffers Modified: docs/Perl6/Spec/S02-bits.pod ===

r30333 - docs/Perl6/Spec

Author: lwall Date: 2010-04-07 20:11:14 +0200 (Wed, 07 Apr 2010) New Revision: 30333 Modified: docs/Perl6/Spec/S03-operators.pod Log: [S03] remove bogus mentions of Buf8, Buf16, Buf32 Modified: docs/Perl6/Spec/S03-operators.pod =

Re: A common and useful thing that doesn't appear to be easy in Perl 6

2010/4/6 Larry Wall : >    Set(Read | Write)   # bogus, R|W is really 3 sets, R, W, and RW! >    Set(Read & Write)   # okay, can only represent RW Set(A | B) doesn't seem so bogus to me, if what you want is the power set- not the original posters intent, but reasonable in other contexts. Though it

Re: A common and useful thing that doesn't appear to be easy in Perl 6

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Apr 7, 2010, at 00:52 , Larry Wall wrote: more syntactic and/or semantic sugar. It's just a bit awkward, after you say: enum Permissions ; subset Perms of Set of Permissions; that the name of the single-member sets are Perms(Read) Pe

Re: Good error messages: going the extra mile

Aristotle Pagaltzis wrote: > Hi Larry (mostly) et al, > > this sounds like something STD could try to steal: > > * >> Okay, this may be going a bit far, but how else are you going >> to fall completely in love with a compil

Re: A common and useful thing that doesn't appear to be easy in Perl 6

On Wed, 7 Apr 2010, yary wrote: > 2010/4/6 Larry Wall : > >    Set(Read | Write)   # bogus, R|W is really 3 sets, R, W, and RW! > >    Set(Read & Write)   # okay, can only represent RW > > Set(A | B) doesn't seem so bogus to me, if what you want is the power > set Hmm, surely a power-set would be

Re: A common and useful thing that doesn't appear to be easy in Perl 6

One more idea: could you implement the sort of thing being asked for by means of a buffer? That is, what's the difference between the bitset being asked for and a Buf[boolean]? And could those differences be addressed by composing a Buf[boolean] into a more appropriate role? Note also that Perl