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Use unsigned bytes in cyclic hash

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This commit is contained in:
Marcus Holland-Moritz 2023-09-07 16:22:19 +02:00
parent 3dd82bc085
commit 5046930d17
1 changed files with 2 additions and 2 deletions
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4
include/dwarfs/cyclic_hash.h
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@ -32,13 +32,13 @@ class rsync_hash {
uint32_t operator()() const { return a_ | (uint32_t(b_) << 16); } uint32_t operator()() const { return a_ | (uint32_t(b_) << 16); }
void update(int8_t inbyte) { void update(uint8_t inbyte) {
a_ += inbyte; a_ += inbyte;
b_ += a_; b_ += a_;
++len_; ++len_;
} }
void update(int8_t outbyte, int8_t inbyte) { void update(uint8_t outbyte, uint8_t inbyte) {
a_ = a_ - outbyte + inbyte; a_ = a_ - outbyte + inbyte;
b_ -= len_ * outbyte; b_ -= len_ * outbyte;
b_ += a_; b_ += a_;