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Save one byte on the frame epilogue

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This commit is contained in:
Jacob Greenfield 2023-07-18 10:48:46 -04:00 committed by Nick Terrell
parent ef59cc39cd
commit 55ff3e4e17
1 changed files with 3 additions and 2 deletions
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5
lib/compress/zstd_compress.c
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@ -5192,8 +5192,9 @@ static size_t ZSTD_writeEpilogue(ZSTD_CCtx* cctx, void* dst, size_t dstCapacity)
if (cctx->stage != ZSTDcs_ending) { if (cctx->stage != ZSTDcs_ending) {
/* write one last empty block, make it the "last" block */ /* write one last empty block, make it the "last" block */
U32 const cBlockHeader24 = 1 /* last block */ + (((U32)bt_raw)<<1) + 0; U32 const cBlockHeader24 = 1 /* last block */ + (((U32)bt_raw)<<1) + 0;
RETURN_ERROR_IF(dstCapacity<4, dstSize_tooSmall, "no room for epilogue"); ZSTD_STATIC_ASSERT(ZSTD_BLOCKHEADERSIZE == 3);
MEM_writeLE32(op, cBlockHeader24); RETURN_ERROR_IF(dstCapacity<3, dstSize_tooSmall, "no room for epilogue");
MEM_writeLE24(op, cBlockHeader24);
op += ZSTD_blockHeaderSize; op += ZSTD_blockHeaderSize;
dstCapacity -= ZSTD_blockHeaderSize; dstCapacity -= ZSTD_blockHeaderSize;
} }