Homepage of Dirk Zoller

Hello world!

This individual is a programmer. I would like to share a few bits of source with you.
Your comments are welcome.

C++

I've written myself a simple BigInt class, mostly for use in cryptographic algorithms. The algorithms in the BigInt class are no surprise. The best thing I can say about it is that it seems to run correctly on a large variety of systems and performs reasonably fast. For a C++ programmer, it should be nicer to use than C libraries or the chunks of code you'll find in most C-based cryptographic libraries.

bigint.hh Declaration file.
bigint.cc Implementation file.
bigint-func.cc Some simple functions using class BigInt.
allocainc.h Provide alloca().
bigint-test.cc A little test program.
number.tst A file with test cases used by the test program.
big-int.tgz or big-int.zip All of the above plus bits for VMS and VAX (r.i.p.).

Forth

My weakness for strange computer languages led me to to Forth back in the 80's. I've been working several years in Forth and enjoyed that very much. Later, after I've actually mostly converted to a C-Programmer, I wrote and published to the net an ANS Forth interpreter written in ANSI-C. That was a little success as this ANS-Forth standard was new in 1993 and there weren't any other free implementations around yet. The usenet was very supportive in the creation of this little package. Here's the latest version I touched in 1995. pfe-0.9.14.tar.gz

The "Portable Forth Environment" is currently being reanimated by Guido Draheim, who is doing some very substantial work with pfe. He has set up a project on Sourceforge.

You may also want to have a look at gforth, available from any GNU mirror. More information at one of the author's page.

Lisp

My weakness for strange programming languages also encompasses Lisp.

It strikes me as odd, that this elegant and expressive language has a very powerful function for output formatting of text, much like C has printf(), but that there seems to be no counterpart for scanning text, like C has scanf().

Here is my humble attempt to do something about it: scan.lisp. This is experimental and unfinished.

Homepage of Dirk Zoller

C++

Forth

Lisp

Thanks