ZSTDb_buffered
size_t const buffOutSize = (zbuff == ZSTDb_buffered && params->outBufferMode == ZSTD_bm_buffered)
size_t const buffInSize = (zbuff == ZSTDb_buffered && params->inBufferMode == ZSTD_bm_buffered)
ZSTD_STATIC_ASSERT((U32)ZSTDb_buffered==1);
ZSTDb_buffered) , "");