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January 2015

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Re: [chuck-users] Inheritance and Arrays
by Casper Schipper 03 Jan '15

03 Jan '15

You could try assign subclass instances to arrays of it's parent class, as shown in the snippet bellow. It is not a very elegant syntax, but at least it makes your plus(A arg[]) function work like you would expect. best, Casper class A { 42 => int a; fun void print() { <<<a>>>; } } class B extends A { 101 => int b; fun void print() { <<<b>>>; } } fun void plus(A arg[]) { for (0 => int i; i < arg.size() ; i++) { arg[i].a ++; arg[i].print(); } } // first declare the 'container'. A @ foo[2]; // use new operator to create B instances. (new B) @=> foo[0]; (new B) @=> foo[1]; 1 => foo[0].a; 2 => foo[1].a; plus(foo); // notice, foo[0] & foo[1] still behave like a B instance. <<<"foo[0].a", foo[0].a>>>; <<<"foo[1].a", foo[1].a>>>; > > 1. Inheritance and Arrays (Julien Saint-Martin) > > From: Julien Saint-Martin <julien.saintmartin(a)googlemail.com> > To: chuck-users(a)lists.cs.princeton.edu > Date: 2 januari 2015 16:15:54 CET > Reply-To: ChucK Users Mailing List <chuck-users(a)lists.cs.princeton.edu> > Subject: [chuck-users] Inheritance and Arrays > > > Hi! > > I would like to pass arrays of objects to a function taking an array of parent class as argument. > I try different things but unfortunately I have compilation errors each time. > > The following example works with no array: > > class A { > int a; > } > > class B extends A { > int b; > } > > fun void plus(A arg) { > arg.a ++; > } > > B foo; > > 1 => foo.a; > plus (foo); > <<<"foo.a", foo.a>>>; > > > > > But When I try the same with arrays it doesn't compile: > [l13.ck]:line(22): argument type(s) do not match: > [l13.ck]:line(22): ... for function 'plus(...)' ... > [l13.ck]:line(22): ...(please check the argument types) > > class A { > int a; > } > > class B extends A { > int b; > } > > fun void plus(A arg[]) { > for (0 => int i; i < arg.size() ; i++) { > arg[i].a ++; > } > > } > > B foo[2]; > > 1 => foo[0].a; > 2 => foo[1].a; > plus (foo); > <<<"foo[0].a", foo[0].a>>>; > <<<"foo[1].a", foo[1].a>>>; > > > Any idea ? > > Thanks in advance and Happy new year!! > > Julien > > > > > _______________________________________________ > chuck-users mailing list > chuck-users(a)lists.cs.princeton.edu > https://lists.cs.princeton.edu/mailman/listinfo/chuck-users

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spork~ and multiple cpus
by vilbjørg broch 02 Jan '15

02 Jan '15

hi I have problems getting shreds to spread load over multiple cpus neither from miniAudicle nor commandline chuck Running linux Debian 3.2.0-4-amd64, chuck 1.3.4.0 jack, miniAudicle 1.3.2 jack I just tested the same .ck files on a mac and it looks like that the sporked shreds automatically spreads over at least 2 of 4 (4 of 8) cores. Is there any more information to find about how to handle or understand these issues, or does anyone have any tricks to share? Much greetings Vilbjørg

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