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-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; |