tree 89b7e08bc7b3ae56c764107a3af303af3662b951
parent f7e697617c77a7d8a1c47db178b095e11368171a
author Tom Sepez <tsepez@chromium.org> 1550100366 +0000
committer Chromium commit bot <commit-bot@chromium.org> 1550100366 +0000

Handle creation of CGFAS_Decimals from floats with bigger values.

Alas, the current implementation is 96 bits; we'd need 128 bits to
cover the full range of an IEEE float.

Dividing a float by 1e32 does not produce a 32-bit shift. The current
code "works" because 64 bits are accidentally carried into |plo| with
|phi, pmid| getting 0s (mercifully) from the botched divisions (except
in some large cases) and then redistributed.

Beef up some tests while we're at it.

Change-Id: I01922d368c52008f9e242909820afeaae796da5f
Reviewed-on: https://pdfium-review.googlesource.com/c/50630
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>