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6 commits

Author SHA1 Message Date
555af315b3 Upgrade: improve Doxygen parameters and treat some warnings
- remove obsolete configuration settings
- walk through all settings according to the documentation
  https://www.doxygen.nl/manual/config.html
- now try to use the new feature to rely on Clang for C++ parsing
- walk through the doxygen-warnings.txt and fix some obvious misspellings
  and structural problems in the documentation comments.

With Debian-Trixie, we are now using Doxygen 1.9.8 —
which produces massively better results in various fine points.

However, there are still problems with automatic cross links,
especially from implementation to the corresponding test classes.
2025-04-27 05:00:14 +02:00
dcbde6d163 Library: shorten display of unsigned types
I changed the rendering of unsigned types in diagnostic output
to use the short notation, e.g. `uint` instead of `unsigned int`.
This dramatically improves the legibility of verification strings.

Moreover, I took the opportunigy to look through the existing page
with codeing style guides to explicitly write down some conventions
formed over years of usage.

I did not just »make up« those light heartedly, rather these conventions
are the result of a craftsman's ''attentive observation and self-reflection.''
2024-11-22 22:02:45 +01:00
806db414dd Copyright: clarify and simplify the file headers
* Lumiera source code always was copyrighted by individual contributors
 * there is no entity "Lumiera.org" which holds any copyrights
 * Lumiera source code is provided under the GPL Version 2+

== Explanations ==
Lumiera as a whole is distributed under Copyleft, GNU General Public License Version 2 or above.
For this to become legally effective, the ''File COPYING in the root directory is sufficient.''

The licensing header in each file is not strictly necessary, yet considered good practice;
attaching a licence notice increases the likeliness that this information is retained
in case someone extracts individual code files. However, it is not by the presence of some
text, that legally binding licensing terms become effective; rather the fact matters that a
given piece of code was provably copyrighted and published under a license. Even reformatting
the code, renaming some variables or deleting parts of the code will not alter this legal
situation, but rather creates a derivative work, which is likewise covered by the GPL!

The most relevant information in the file header is the notice regarding the
time of the first individual copyright claim. By virtue of this initial copyright,
the first author is entitled to choose the terms of licensing. All further
modifications are permitted and covered by the License. The specific wording
or format of the copyright header is not legally relevant, as long as the
intention to publish under the GPL remains clear. The extended wording was
based on a recommendation by the FSF. It can be shortened, because the full terms
of the license are provided alongside the distribution, in the file COPYING.
2024-11-17 23:42:55 +01:00
3b3600379a Library: introduce formating variants for decimal10
showDecimal -> decimal10 (maximal precision to survive round-trip through decimal representation=

showComplete -> max_decimal10 (enough decimal places to capture each possible distinct floating-point value)


Use these new functions to rewrite the format4csv() helper
2024-03-14 17:32:22 +01:00
b426ea4921 Library: simple default implementation for random sequences
Since this is a much more complicated topic,
for now I decided to establish two instances through global variables:
 * a sequence seeded with a fixed starting value
 * another sequence seeded from a true entropy source

What we actually need however is some kind of execution framework
to define points of random-seeding and to capture seed values for
reproducible tests.
2024-03-12 02:34:19 +01:00
7a3e4098c8 Library: some first thoughts regarding random number generation
Relying on random numbers for verification and measurements is known to be problematic.
At some point we are bound to control the seed values -- and in the actual
application usage we want to record sequence seeding in the event log.

Some initial thoughts regarding this intricate topic.
 * a low-ceremony drop-in replacement for rand() is required
 * we want the ability to pick-up and control each and every usage eventually
 * however, some usages explicitly require true randomness
 * the ability to use separate streams of random-number generation is desirable
2024-03-12 00:48:11 +01:00