ZSTD_fcs_fieldSize  198 lib/zstd/decompress.c 		return ZSTD_frameHeaderSize_prefix + !singleSegment + ZSTD_did_fieldSize[dictID] + ZSTD_fcs_fieldSize[fcsId] + (singleSegment && !fcsId);
ZSTD_fcs_fieldSize   82 lib/zstd/zstd_internal.h static const size_t ZSTD_fcs_fieldSize[4] = {0, 2, 4, 8};