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WHAT'S THIS?
============
For many important reasons it would be advantageous to have the base
classes (lists, arrays, hashes / dictionaries, string abstraction,
vector classes, other linear algebra classes, etc etc) implemented in
C "below" a C++ wrapper providing Inventor API compatibility. We've
slowly started this effort now, gradually moving stuff to "pure" C.
This document contains various links to resources with important
information and ideas on how to do the stuff we're looking for in C,
presumably in an OO fashion.
C RESOURCES
===========
* Try-Catch style interface in C (freely available for any use):
<URL:http://www.cs.berkeley.edu/~amc/cexcept/>.
* See this paper for more information on how to write reliable, robust
system-type C libraries (from one of the Freetype authors):
<URL:http://freetype.sourceforge.net/david/reliable-c.html>.
* A C library with misc components (dictionary, hash, linked lists,
exception handling) with a fairly liberal license (perhaps not
liberal enough, though):
<URL:http://users.footprints.net/~kaz/kazlib.html>.
* There are sourcecode examples for many basic ADTs in C in the book
"C Interfaces And Implementations", referenced from the table of
contents: <URL:http://www.cs.princeton.edu/software/cii/>.
* Programming techniques with ISO C89 to get OO design:
<URL:http://ldeniau.home.cern.ch/ldeniau/html/oopc/oopc.html>
("Object Oriented Programming In C" by Laurent Deniau).
* Dr. Dobb's Journal article of november 2000, "Exception Handling in
C without C++": see <URL:http://www.ddj.com/ftp/2000/2000_11/>.
TODOs
=====
* SbTime is not very well designed, as it really represents two
different abstractions: a timer and a date / calendar. The latter
supported by the format() / formatDate() / getTimeOfDay() /
setTimeOfDay() (the two last ones are badly named) functions.
So we should split to abstractions cc_time(r?) and cc_date /
cc_calendar.
Study the standard Java API for a more extensive abstraction of the
last type before starting the C API design and implementation.
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