Switch uncompressedLength to an Optional<uint64_t>
authorNick Terrell <terrelln@fb.com>
Thu, 11 May 2017 21:56:02 +0000 (14:56 -0700)
committerFacebook Github Bot <facebook-github-bot@users.noreply.github.com>
Thu, 11 May 2017 22:05:12 +0000 (15:05 -0700)
commit1e8e9c94da711e14dad56f944b49cf968861a6b8
treed7b41f38eceb6f72f73c7b79434c6470b3621304
parent42c429142cd46d35bf0599dcfff3b3160001b483
Switch uncompressedLength to an Optional<uint64_t>

Summary: Instead of using `UNKNWON_UNCOMPRESSED_LENGTH` use an `Optional`.

Reviewed By: yfeldblum

Differential Revision: D5038919

fbshipit-source-id: 7fb60542277019996be3ff50509df5a5060cb1a0
folly/io/Compression.cpp
folly/io/Compression.h
folly/io/test/CompressionTest.cpp