ensure lastBlock is correctly determined

reported by @terrelln
2024-10-23 11:50:57 -07:00
parent 7bad787d8b
commit 5ae34e4c96
1 changed files with 1 additions and 1 deletions
@@ -4540,8 +4540,8 @@ static size_t ZSTD_compress_frameChunk(ZSTD_CCtx* cctx,

    while (remaining) {
        ZSTD_matchState_t* const ms = &cctx->blockState.matchState;
-        U32 const lastBlock = lastFrameChunk & (blockSizeMax >= remaining);
        size_t const blockSize = ZSTD_optimalBlockSize(cctx, ip, remaining, blockSizeMax, cctx->appliedParams.cParams.strategy, savings);
+        U32 const lastBlock = lastFrameChunk & (blockSize == remaining);
        assert(blockSize <= remaining);

        /* TODO: See 3090. We reduced MIN_CBLOCK_SIZE from 3 to 2 so to compensate we are adding