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author | Treehugger Robot <treehugger-gerrit@google.com> | 2021-04-20 04:44:28 +0000 |
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committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | 2021-04-20 04:44:28 +0000 |
commit | 069316a93cb305bf016310fa1bcbe6a34e83804c (patch) | |
tree | 6a5fca95ce93294ff06b53dbdfd4e3a81548cea3 | |
parent | 1edbf92b772ac642f2e17c1a77bcb19727f5af10 (diff) | |
parent | 27b55c2640bf9bcff7fb17d4651d6a36f1645760 (diff) | |
download | bsdiff-069316a93cb305bf016310fa1bcbe6a34e83804c.tar.gz |
Merge "Add comment explaining why we need custom logic to parse int" am: be81a990b3 am: 94af5fff58 am: 30ed9f9151 am: 27b55c2640android-mainline-12.0.0_r99android-mainline-12.0.0_r98android-mainline-12.0.0_r77android-mainline-12.0.0_r70android-mainline-12.0.0_r69android-mainline-12.0.0_r63android-mainline-12.0.0_r59android-mainline-12.0.0_r56android-mainline-12.0.0_r5android-mainline-12.0.0_r49android-mainline-12.0.0_r42android-mainline-12.0.0_r39android-mainline-12.0.0_r22android-mainline-12.0.0_r19android-mainline-12.0.0_r122android-mainline-12.0.0_r115android-mainline-12.0.0_r113android-mainline-12.0.0_r100aml_tz3_311312010android12-mainline-networkstack-releaseandroid12-mainline-art-release
Original change: https://android-review.googlesource.com/c/platform/external/bsdiff/+/1680665
Change-Id: I6f27d6a1271b5913d014b5404668e1239fa3e894
-rw-r--r-- | utils.cc | 5 |
1 files changed, 5 insertions, 0 deletions
@@ -7,6 +7,11 @@ namespace bsdiff { int64_t ParseInt64(const uint8_t* buf) { + // BSPatch uses a non-standard encoding of integers. + // Highest bit of that integer is used as a sign bit, 1 = negative + // and 0 = positive. + // Therefore, if the highest bit is set, flip it, then do 2's complement + // to get the integer in standard form int64_t result = buf[7] & 0x7F; for (int i = 6; i >= 0; i--) { result <<= 8; |