On 11/12/2020 21:41, Dante Doménech wrote:
I've been digging into calc code. And it makes me wonder about a few things.
First, in here: core
<https://opengrok.libreoffice.org/xref/core/>/include
<https://opengrok.libreoffice.org/xref/core/include/>/rtl
<https://opengrok.libreoffice.org/xref/core/include/rtl/>/math.hxx
<https://opengrok.libreoffice.org/xref/core/include/rtl/math.hxx>
We have our own isnan, isinf, isfinite, ... and some of them with quite
strange code.
Why is the default c++ standard library isn't good enough?
The same goes for floor / ceil / round ...
Those include files that are part of the stable URE interface(*) have
rather picky requirements. They are meant to be included by rather old
(pre-C99, pre-C++11) compilers, and changes to their content likely
cause incompatible changes to the stable URE interface. I would avoid
modifications of those files without a clear need and without a solid
understanding of the implications.
* For a list of all the C/C++ include files that make up the stable URE
interface see workdir/CustomTarget/odk/allheaders/allheaders.hxx
generated by `make CustomTarget_odk/allheaders`.
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