[github version] Some test failures on Android (32-bit)

[trizen]

Hi. I tested the latest GitHub commit of Math::Prime::Util on a 32-bit Android phone, using the Termux environment and the clang compiler.

Unfortunately, some tests failed:

Here are the versions of the dependencies:

Perl version is 5.34.1:

The library can be installed, by ignoring the tests, but some functions will produce incorrect results:

Steps to reproduce the issue:

1. get a 32-bit Android phone
2. install Termux from F-Droid
3. run the following commands:

pkg up
pkg install perl make clang libgmp curl
cpan App::cpanminus
cpanm -v https://github.com/danaj/Math-Prime-Util-GMP/archive/refs/heads/master.zip
cpanm -v https://github.com/danaj/Math-Prime-Util/archive/refs/heads/master.zip

Alternative commands, using git instead of cpanm (and also without installing Math::Prime::Util::GMP):

pkg up
pkg install perl make clang git
git clone --depth=1 https://github.com/danaj/Math-Prime-Util
cd Math-Prime-Util
perl Makefile.PL
make test

[sisyphus]

FWIW I see the same failures on 32-bit perl-5.34.0 (ivsize == 4) built using mingw-w64 port of gcc-10.2.0.
However, all tests pass for the same version of 32-bit perl, built using the same toolchain on the same machine, but having ivsize == 8.

Apparently, there's something in the github version that's not allowing for the possibility that ivsize is 4.
(Maybe it's in the test scripts themselves ? ... I haven't investigated.)

Cheers,
Rob

[danaj]

Thank you very much for the report, and also big thanks for the confirmation on 32-bit perl with ivsize == 4. Definitely something to fix!