Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[2.4.2] - 2022-03-03

The function date return format is now a string "YYY-MM-DD" (local ISO 8601).
The function time return format is now a string "HH:MM:SS" (local ISO 8601).

The useless function nop has been removed.
GENERATION.md file has been removed, the generation instructions are in README.md.
The useless file TODO.md has been removed.

Better parser (in fact just a lexer, because that's all it takes).
Use of mpreal instead of raw mpfr for calc on reals.
Use of the standard C++ complex class.
Enhanced code quality and memory usage checks.
Added github actions to pass functional tests and valgrind mem checks at each pull request.
Applied google c++ style guide
- points covered are very numerous: c++17, define guard, name and order of inclusions, static and global variables, common patterns, classes, naming conventions etc.
- cpplint used with a CPPLINT.cfg removing some warnings.
- clang-format is now based on google style.
Test files are now markdown (.md) files, tests result are slightly changed.
Delived as flatpak, not as rpm and deb anymore.
Automatic version string from git.
hex and bin numbers accept floating point input and C99 standard output.
« and » are now valid as program delimiters. << and >> are still valid.
Entering the sign after the base (ex: 0x-1e2) is allowed.
rpn is delivered as flatpak and snap packages to be compatible with a maximum of Linux distribs. rpm and deb are no longer generated.

Be carefull, compatibility is broken on these points compared to last version 2.3.2:

<< << input doesn't lead to ««»» but to «<< », preventing to eval the real program content.
Making an operation stick to the previous entry is not possible anymore (ex: 1 2+ instead of 1 2 +), this corrects bad behaviors like 3b114 pushing 3b11 and 4.
Complexes are written in the form (1,2) instead of (1, 2) (space is removed).
The binary prefix is always 0b on display, but the input can be 0b, 0B, 2b or 2B.
The hex prefix is always 0x on display, but the input still can be 0x, 0X or 16B at input.
mant and xpon now give binary (and not decimal) significand and exponent, as it is the norm in the standard libs (libC, standard C++, mpfr, gmp).
dupn, roll, rolld are not leaving anymore their argument in front of the stack in case of error.
sto+ sto- sto* sto/ don't accept anymore the syntax 'varname' value stoX, but only value 'varname' stoX, ex: 3 'a' sto*.
Incomplete entry (1, is not available anymore.

Removed useless unti, repea, whil (prev. existing for HP28S compatibility).
Removed sqr function, please use sq instead (prev. existing for HP28S compatibility).
Removed CtrlC for interrupting a program (considered useless).
Removed old memory management, efficient but poorly maintainable.
Removed man page generation.

sub now only accepts boundaries between 1 and the string length.
sto/ behavior: sto/ now correctly stores variable divided by constant and not constant divided by variable.
cosh now returns the hyp cosinus instead of the hyp sinus.