This is the Gnat Examples Directory. Our goal is to provide the gnat user some
pieces of code that are easy to understand, easy to modify and to play with,
and which demonstrate either :
- some classic Ada features
- some new Ada 9x features
- some good pedagogical programming exercises
If you are insterested in sharing your own programs with the Gnat community,
please tune them with the latest Gnat version and send it with appropriate
documentation (and bug reports) to comar@cs.nyu.edu
On unix systems -- a simple "make" should build and execute theses programs.
1- simple_io
provides (extremely) basic Input-Output facilities with a text_io-like
syntax. A "Hello World" program is used as main unit.
Note: this uses the io.ads/adb package and the file a-cio.c which has
already been compiled as part of the GNAT Run Time Library therefore that
do not need to be compiled again or mentioned on the gnatbl command. To
examine these sources look in the RTL source directory (see gnat-intro
for details).
2- text_io_example
trivial demonstration of a use of text_io.
3- use_of_import
trivial example of calling a C function from an Ada program.
4- tgef - a simple test of the GEF (Generic Elementary Functions) package
of the Ada Numerics annex. The example produces a classical Sin wave.
5- tef - similar to tgef except here we use the Elementary_Functions package
which is not generic and therefore requires no instantiation. It is defined
for type Float. The example produces three overlayed graphs of Sin, Cos and
Arctan.
6- instruments
A very simple simulation of car dashboard instruments. Demonstrates
simple type extension, dispatching and child unit. 2 main programs are
provided, demo1 and demo2.
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.