tree 94ed5f1282794893647f41873d733edc8a970069
parent 1111764c3496c30ae65a4ec71286f90a8da437cd
author Hui Yingst <nigi@chromium.org> 1578531566 +0000
committer Chromium commit bot <commit-bot@chromium.org> 1578531566 +0000

Change StringToCode() to return Optional<uint32_t> type.

This CL changes StringToCode() to return Optional<uint32_t> type, so
that pdfium::nullopt can be used as the return value to indicate
invalid string, since Acrobat allows character codes which cover the
whole uint32_t range. Right now this CL treats pdfium::nullopt as 0
to avoid behavior changes. A future CL will handle return value 0
differently (as a valid value).

Bug: pdfium:1422
Change-Id: I91db0d010eef5102b67ac2fb0a0118368a83a5d7
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/64510
Commit-Queue: Hui Yingst <nigi@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>