The CVS-hosted sample module, available from http://tcl.sf.net/ , is intended primarily to demonstrate to C developers how to write a Tcl extension in C that can be dynamically loaded as well as how to structure the directories so that someone can use configure and make to build and install said extension.
In coarser perspective, think of it as a lesson in how to use C functions from Tcl.
For more background information, read about TEA and TEA2.
[What's the exact URL at SF?]
Not exactly the url, but here's the cvsweb view of the sampleextension module: http://tcl.cvs.sourceforge.net/tcl/sampleextension/
[The exact URL of what? SampleExtension? Modules don't really have an exact URL. And for whatever reason, the code's never been released on SF.net so there isn't a tar file there to download. Instead, you have to go and visit the nightly cvs snapshots at ftp://ftp.tcl.tk/pub/tcl/nightly-cvs/] with filename sample-yyyymmdd.tar.gz.
If you experience problem using the ftp server ftp://ftp.tcl.tk/pub/tcl/nightly-cvs/ (time out, eh !), you may try using http mirrors, such as:
http://ftp.cs.pu.edu.tw/Unix/lang/tcl/nightly-cvs/?C=S;O=A
http://ftp2.uk.freebsd.org/sites/ftp.tcl.tk/pub/tcl/nightly-cvs/
Also, take care of the fact that on the cvs repository, the sample extension module is "sampleextension", where as on the daily snaphsots, the sample extension is called "sample" only.
There is also ftp://www.tcl.tk/pub/tcl/examples/tea/ but these are much older examples than what is available in CVS.
Category Package | Category Porting | Category Foreign Interfaces