[Csnd] The real length of a table
| Date | 2019-08-20 15:19 |
| From | Peter Burgess |
| Subject | [Csnd] The real length of a table |
How do I aquire the real length of a function table?
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I have an ftable declared as size 5 using gen 2, with 5 values specified in the declaration like so: gifTable ftgen 0,0,5, 2, 40,43,45,48,52 I can't find a table length opcode that gives the correct length... 'tableng' and 'ftlen' return 4, presumably because they're assuming it's a power of 2 size table with a guard point, even though 'tableng' claims not to know if it has a guard point... 'nsamp' returns 0, for reasons I do not know... How do I return he true value length of 5? |
| Date | 2019-08-20 15:28 |
| From | Eduardo Moguillansky |
| Subject | Re: [Csnd] The real length of a table |
|
Use a negative number for the length. Also use a negative value for the gen type if you don't want normalisation gifTable ftgen 0,0, -5, -2, 40,43,45,48,52
instr 1 ilen ftlen gifTable printf "ilen: %d\n", 1, ilen ftprint gifTable turnoff endin It would be nice to have an opcode without all these
idiosyncracies. Something like
gitabnum ftgen2 0, 5, 2, ...
(without the delay and all values positive)
On 20.08.19 16:19, Peter Burgess wrote:
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| Date | 2019-08-20 15:52 |
| From | Peter Burgess |
| Subject | Re: [Csnd] The real length of a table |
Oh crap yeah, very glad you mentioned the normalisation, I'd forgotten about that, that was also making me scratch my head, haha I agree though, another ftgen without this might be nice, if it had a name that made it obvious it was doing exactly what you write I reckon. Cheers for the help, Pete On Tue, Aug 20, 2019 at 3:28 PM Eduardo Moguillansky <eduardo.moguillansky@gmail.com> wrote:
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| Date | 2019-08-20 15:56 |
| From | Victor Lazzarini |
| Subject | Re: [Csnd] The real length of a table |
|
That sounds like a bug. From 6.0 we do not need to use negative numbers for sizes and ftlen should return the correct size. Victor Lazzarini
Dean of Arts, Celtic Studies, and Philosophy
Maynooth University
Ireland
|
| Date | 2019-08-20 16:13 |
| From | Peter Burgess |
| Subject | Re: [Csnd] The real length of a table |
It returns the correct size when table length is 6, but not 5 On Tue, Aug 20, 2019 at 3:56 PM Victor Lazzarini <Victor.Lazzarini@mu.ie> wrote:
-- Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here |
| Date | 2019-08-20 16:17 |
| From | Victor Lazzarini |
| Subject | Re: [Csnd] The real length of a table |
|
Ah, because 5 is 4 with an extended guardpoint, that's why. I guess that's a problem we forgot to address... Victor Lazzarini
Dean of Arts, Celtic Studies, and Philosophy
Maynooth University
Ireland
|
| Date | 2019-08-20 16:19 |
| From | Peter Burgess |
| Subject | Re: [Csnd] The real length of a table |
Fair enough. That is true of ftlen and tableng (I'm not sure if there's supposed to be a functional difference) On Tue, Aug 20, 2019 at 4:17 PM Victor Lazzarini <Victor.Lazzarini@mu.ie> wrote:
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