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Posted to issues@kvrocks.apache.org by GitBox <gi...@apache.org> on 2022/08/28 15:30:17 UTC

[GitHub] [incubator-kvrocks] ColinChamber commented on a diff in pull request #793: Optimize get bitmap string and remove redundant num2bit array

ColinChamber commented on code in PR #793:
URL: https://github.com/apache/incubator-kvrocks/pull/793#discussion_r956745581


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src/redis_bitmap.cc:
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@@ -146,16 +146,27 @@ rocksdb::Status Bitmap::GetString(const Slice &user_key, const uint32_t max_btos
 
     //  If you setbit bit 0 1, the value is stored as 0x01 in Kvrocks but 0x80 in Redis.
     // So we need to swap bits is to keep the same return value as Redis.
+    static const uint8_t swap_table[256] = {

Review Comment:
   Thanks for your review. Is there a more elegant way of compile-time calculations to generate this swap_table?



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