Abridged summary of comp.lang.tcl@googlegroups.com - 10 updates in 2 topics

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Abridged summary of comp.lang.tcl@googlegroups.com - 10 updates in 2 topics

comp.lang.tcl mailing list
[hidden email]: Nov 07 04:20PM -0800

Another Mentor engineer showed me itcl::local - it seems to do roughly what we are looking for here - but I note that local isn't available in TclOO. How is itcl::local working under the covers? And ...more
"Donal K. Fellows" <[hidden email]>: Nov 08 08:26AM

> available in TclOO. How is itcl::local working under the covers?
> And why doesn't TclOO offer that ability - is there a problem with
> it?
 
I'd guess it is probably using an unset trace on an ...more
Christian Gollwitzer <[hidden email]>: Nov 08 09:46AM +0100

> Another Mentor engineer showed me itcl::local - it seems to do roughly what we are looking for here - but I note that local isn't available in TclOO. How is itcl::local working under the covers? ...more
Andreas Leitgeb <[hidden email]>: Nov 08 08:44AM

> contexts in the mix).
 
> Donal (as to why it isn't done, I got sidetracked into this tclquadcode
> project that interests some people).
 
I wonder if such an unset-trace would also spoil ...more
"Donal K. Fellows" <[hidden email]>: Nov 08 09:53AM

On 08/11/2017 08:44, Andreas Leitgeb wrote:
> I wonder if such an unset-trace would also spoil optimizations...
 
It forces the presence of rather more expensive data structures, which ...more
[hidden email]: Nov 08 09:46AM -0800

Interesting - I was able to make the "trace on an otherwise unused local variable" work just fine.
 
It suggests a (perhaps hack-ish) work around that wouldn't be subject to trace's overhead and ...more
"[hidden email]" <[hidden email]>: Nov 07 09:32PM -0800

On Tuesday, November 7, 2017 at 11:16:25 PM UTC+8, Don Porter wrote:
> | [hidden email] Information Technology Laboratory |
> | http://math.nist.gov/~DPorter/ ...more
"Donal K. Fellows" <[hidden email]>: Nov 08 08:19AM

> The new app built with Tcl8.6.3 (TCLALLOC mode, threaded and shared)
> uses TCL_EVAL() which runs 20% slower than the old app built with
> Tcl8.5.10 (TCLALLOC mode, threaded, shared). ...more
Gerald Lester <[hidden email]>: Nov 08 08:00AM -0600


> Thanks, Don. I knew that "slower" better addressed with test cases/scripts. My app is a message creator and parser where Tcl is used as the embedded interp inside C sources. It's a little bit hard ...more
Gerald Lester <[hidden email]>: Nov 08 08:04AM -0600


>> The smaller and more focused the demonstration the better, and the
>> more likely someone can and will look into it.
 
> Thanks, Don. I knew that "slower" better addressed with test ...more
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