ZSTD_seqSymbol_header
const ZSTD_seqSymbol_header* const DTableH = (const ZSTD_seqSymbol_header*)ptr;
U32 const tableLog = ((const ZSTD_seqSymbol_header*)ptr)[0].tableLog;
ZSTD_seqSymbol_header* const DTableH = (ZSTD_seqSymbol_header*)ptr;
{ ZSTD_seqSymbol_header DTableH;