On Mon Oct 10 16:25:45 2011, coke wrote: > On Thu Sep 02 20:55:52 2010, masak wrote: > > <Util> rakudo: my @a = 1, 2, 3; @a X*= 5; say @a.perl; @a = @a X* 5; > > say @a.perl; > > <p6eval> rakudo 33e94e: OUTPUT«[1, 2, 3][5, 10, 15]» > > <Util> Should X*= have worked? If not, how to best scale a vector > > without repeating the vector's array name? > > <masak> @b = @a X* 5 > > <masak> :P > > <masak> and yes, I think X*= should have worked. > > * masak submits rakudobug > > <tylercurtis> rakudo: my @a = 1, 2, 3; @a [X*]= 5; say @a.perl; @a = > > @a X* 5; say @a.perl; > > <p6eval> rakudo 33e94e: OUTPUT«===SORRY!===Confused at line 22, near > > "@a [X*]= 5"» > > <Util> S03 discusses X[+=] vs [X+]= in "Nesting of metaoperators", but > > X[*=] does the same as X*= , and [X*]= fails. > > <Util> Oh, as tylercurtis just showed. > > This now fails outright: > > 19:25 < [Coke]> rakudo: my @a = 1, 2, 3; @a X*= 5; say @a.perl; @a = @a X* > 5;say @a.perl; > 19:25 <+p6eval> rakudo 38907e: OUTPUT«Array.new(1, 2, 3)splice() not > implemented in class 'Mu' in method reify at > src/gen/CORE.setting:3657 in method gimme at > src/gen/CORE.setting:4015 in method eager at > src/gen/CORE.setting:3991 in method STORE at > src/gen/CORE.setting:4409 in block <anon> a… >
Output is now close to the OP: > my @a = 1, 2, 3; @a X*= 5; say @a.perl; @a = @a X* 5;say @a.perl; Array.new(1, 2, 3) Array.new(5, 10, 15) -- Will "Coke" Coleda
