ZSTD_decompressBegin_usingDDict
ZSTDLIB_STATIC_API size_t ZSTD_decompressBegin_usingDDict(ZSTD_DCtx* dctx, const ZSTD_DDict* ddict);
FORWARD_IF_ERROR(ZSTD_decompressBegin_usingDDict(dctx, ddict), "");
FORWARD_IF_ERROR(ZSTD_decompressBegin_usingDDict(zds, ZSTD_getDDict(zds)), "");