Improve ARM64 compatibility

h2oai / datatable

A Python package for manipulating 2-dimensional tabular data structures

https://datatable.readthedocs.io

Mozilla Public License 2.0

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Improve ARM64 compatibility #3447

Closed oleksiyskononenko closed 1 year ago

oleksiyskononenko commented 1 year ago

With changes on this PR datatable builds and passes all the tests on ARM platform. Since on this platform long double is identical to double, we had to

use tolerance 1e-15 for float tests;
improve handling of very small and very large floats when casting/freading similar to https://github.com/Rdatatable/data.table/commit/ff3e7d42bb4e4114c8b17fc4e74fc2a5bb4dbe45.

WIP for #3222