| Deadlock | |
| 1 (Data Constructor) | Z.IO.Exception, Z.IO |
| 2 (Type/Class) | Z.IO.Exception, Z.IO |
| DEBUG | Z.IO.Logger, Z.IO |
| debug | Z.IO.Logger, Z.IO |
| debugTo | Z.IO.Logger, Z.IO |
| decompress | Z.IO.BIO.Zlib |
| decompressBlocks | Z.IO.BIO.Zlib |
| decompressBufferSize | Z.IO.BIO.Zlib |
| DecompressConfig | |
| 1 (Type/Class) | Z.IO.BIO.Zlib |
| 2 (Data Constructor) | Z.IO.BIO.Zlib |
| decompressDictionary | Z.IO.BIO.Zlib |
| decompressReset | Z.IO.BIO.Zlib |
| decompressWindowBits | Z.IO.BIO.Zlib |
| defaultChunkSize | Z.IO.Buffered, Z.IO |
| defaultCompressConfig | Z.IO.BIO.Zlib |
| defaultDecompressConfig | Z.IO.BIO.Zlib |
| defaultFmt | Z.IO.Logger, Z.IO |
| defaultFmtCallStack | Z.IO.Logger, Z.IO |
| defaultHints | Z.IO.Network.DNS, Z.IO.Network |
| defaultIPCClientConfig | Z.IO.Network.IPC, Z.IO.Network |
| defaultIPCServerConfig | Z.IO.Network.IPC, Z.IO.Network |
| defaultLevelFmt | Z.IO.Logger, Z.IO |
| defaultLoggerConfig | Z.IO.Logger, Z.IO |
| defaultMemLevel | Z.IO.BIO.Zlib |
| defaultProcessOptions | Z.IO.Process |
| defaultTCPClientConfig | Z.IO.Network.TCP, Z.IO.Network |
| defaultTCPServerConfig | Z.IO.Network.TCP, Z.IO.Network |
| defaultTSCache | Z.IO.Logger, Z.IO |
| defaultUDPConfig | Z.IO.Network.UDP, Z.IO.Network |
| defaultUDPRecvConfig | Z.IO.Network.UDP, Z.IO.Network |
| defaultWindowBits | Z.IO.BIO.Zlib |
| DEFAULT_MODE | Z.IO.UV.FFI, Z.IO.FileSystem.Threaded, Z.IO.FileSystem |
| Denormal | Z.IO.Exception, Z.IO |
| DirEntBlock | Z.IO.UV.FFI, Z.IO.FileSystem.Threaded, Z.IO.FileSystem |
| DirEntChar | Z.IO.UV.FFI, Z.IO.FileSystem.Threaded, Z.IO.FileSystem |
| DirEntDir | Z.IO.UV.FFI, Z.IO.FileSystem.Threaded, Z.IO.FileSystem |
| DirEntFIFO | Z.IO.UV.FFI, Z.IO.FileSystem.Threaded, Z.IO.FileSystem |
| DirEntFile | Z.IO.UV.FFI, Z.IO.FileSystem.Threaded, Z.IO.FileSystem |
| DirEntLink | Z.IO.UV.FFI, Z.IO.FileSystem.Threaded, Z.IO.FileSystem |
| DirEntSocket | Z.IO.UV.FFI, Z.IO.FileSystem.Threaded, Z.IO.FileSystem |
| DirEntType | Z.IO.UV.FFI, Z.IO.FileSystem.Threaded, Z.IO.FileSystem |
| DirEntUnknown | Z.IO.UV.FFI, Z.IO.FileSystem.Threaded, Z.IO.FileSystem |
| disconnectUDP | Z.IO.Network.UDP, Z.IO.Network |
| displayException | Z.IO.Exception, Z.IO |
| DivideByZero | Z.IO.Exception, Z.IO |
| doubleUnderline | Z.IO.StdStream.Ansi |