| OOBInline | Network.Socket |
| Object |
| 1 (Type/Class) | GHC.Dotnet |
| 2 (Type/Class) | Graphics.UI.GLUT.Objects, Graphics.UI.GLUT |
| ObjectLinear | Graphics.Rendering.OpenGL.GL.CoordTrans, Graphics.Rendering.OpenGL.GL, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| ObjectName | Graphics.Rendering.OpenGL.GL.BufferObjects, Graphics.Rendering.OpenGL.GL, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| ObjectParametricError | Graphics.Rendering.OpenGL.GLU.NURBS, Graphics.Rendering.OpenGL.GLU, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| ObjectPathLength | Graphics.Rendering.OpenGL.GLU.NURBS, Graphics.Rendering.OpenGL.GLU, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| OccName | Language.Haskell.TH.Syntax |
| Octahedron | Graphics.UI.GLUT.Objects, Graphics.UI.GLUT |
| October | System.Time |
| OddParity | System.Posix.Terminal, System.Posix |
| One | Graphics.Rendering.OpenGL.GL.PerFragment, Graphics.Rendering.OpenGL.GL, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| OneLineMode | Text.PrettyPrint.HughesPJ, Text.PrettyPrint, Language.Haskell.Pretty |
| OneMinusConstantAlpha | Graphics.Rendering.OpenGL.GL.PerFragment, Graphics.Rendering.OpenGL.GL, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| OneMinusConstantColor | Graphics.Rendering.OpenGL.GL.PerFragment, Graphics.Rendering.OpenGL.GL, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| OneMinusDstAlpha | Graphics.Rendering.OpenGL.GL.PerFragment, Graphics.Rendering.OpenGL.GL, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| OneMinusDstColor | Graphics.Rendering.OpenGL.GL.PerFragment, Graphics.Rendering.OpenGL.GL, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| OneMinusSrcAlpha | Graphics.Rendering.OpenGL.GL.PerFragment, Graphics.Rendering.OpenGL.GL, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| OneMinusSrcColor | Graphics.Rendering.OpenGL.GL.PerFragment, Graphics.Rendering.OpenGL.GL, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| OpDecr | Graphics.Rendering.OpenGL.GL.PerFragment, Graphics.Rendering.OpenGL.GL, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| OpDecrWrap | Graphics.Rendering.OpenGL.GL.PerFragment, Graphics.Rendering.OpenGL.GL, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| OpIncr | Graphics.Rendering.OpenGL.GL.PerFragment, Graphics.Rendering.OpenGL.GL, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| OpIncrWrap | Graphics.Rendering.OpenGL.GL.PerFragment, Graphics.Rendering.OpenGL.GL, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| OpInvert | Graphics.Rendering.OpenGL.GL.PerFragment, Graphics.Rendering.OpenGL.GL, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| OpKeep | Graphics.Rendering.OpenGL.GL.PerFragment, Graphics.Rendering.OpenGL.GL, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| OpReplace | Graphics.Rendering.OpenGL.GL.PerFragment, Graphics.Rendering.OpenGL.GL, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| OpZero | Graphics.Rendering.OpenGL.GL.PerFragment, Graphics.Rendering.OpenGL.GL, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| Opaque | Graphics.HGL.Draw.Text, Graphics.HGL.Draw, Graphics.HGL.Core, Graphics.HGL |
| OpenFileFlags |
| 1 (Type/Class) | System.Posix.IO, System.Posix |
| 2 (Data Constructor) | System.Posix.IO, System.Posix |
| OpenFileLimit | System.Posix.Unistd, System.Posix |
| OpenMode | System.Posix.IO, System.Posix |
| Operator | Text.ParserCombinators.Parsec.Expr |
| OperatorTable | Text.ParserCombinators.Parsec.Expr |
| Opt | Distribution.Compiler, Distribution.Extension, Distribution.Simple |
| OptArg |
| 1 (Data Constructor) | Distribution.GetOpt |
| 2 (Data Constructor) | System.Console.GetOpt |
| OptDescr |
| 1 (Type/Class) | Distribution.GetOpt |
| 2 (Type/Class) | System.Console.GetOpt |
| Option |
| 1 (Data Constructor) | Distribution.GetOpt |
| 2 (Data Constructor) | System.Console.GetOpt |
| Or | Graphics.Rendering.OpenGL.GL.PerFragment, Graphics.Rendering.OpenGL.GL, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| OrInverted | Graphics.Rendering.OpenGL.GL.PerFragment, Graphics.Rendering.OpenGL.GL, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| OrReverse | Graphics.Rendering.OpenGL.GL.PerFragment, Graphics.Rendering.OpenGL.GL, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| Ord | Prelude |
| OrdALPHA | Test.QuickCheck.Poly, Debug.QuickCheck.Poly |
| OrdBETA | Test.QuickCheck.Poly, Debug.QuickCheck.Poly |
| OrdGAMMA | Test.QuickCheck.Poly, Debug.QuickCheck.Poly |
| Order | Graphics.Rendering.OpenGL.GL.Evaluators, Graphics.Rendering.OpenGL.GL, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| Ordering | Prelude |
| Orient | Data.Graph.Inductive.Graphviz, Data.Graph.Inductive |
| OtherCompiler | Distribution.Compiler, Distribution.Setup, Distribution.Simple |
| OtherLicense | Distribution.License, Distribution.Make, Distribution.Simple |
| OutOfMemory | Graphics.Rendering.OpenGL.GLU.Errors, Graphics.Rendering.OpenGL.GLU, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| OutlinePatch | Graphics.Rendering.OpenGL.GLU.NURBS, Graphics.Rendering.OpenGL.GLU, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| OutlinePolygon | Graphics.Rendering.OpenGL.GLU.NURBS, Graphics.Rendering.OpenGL.GLU, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| OutputQueue | System.Posix.Terminal, System.Posix |
| Outside | Graphics.Rendering.OpenGL.GLU.Quadrics, Graphics.Rendering.OpenGL.GLU, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| Overflow | Control.Exception |
| OverlappingInstances | Language.Haskell.Extension, Distribution.Extension, Distribution.Simple |
| Overlay | Graphics.UI.GLUT.Overlay, Graphics.UI.GLUT |
| objExtension | Distribution.Compat.FilePath |
| occString | Language.Haskell.TH.Syntax |
| octDigit | Text.ParserCombinators.Parsec.Char, Text.ParserCombinators.Parsec |
| octal | Text.ParserCombinators.Parsec.Token |
| odd | Prelude |
| offsetRegion | Graphics.X11.Xlib.Region, Graphics.X11.Xlib |
| ok | Test.QuickCheck, Debug.QuickCheck |
| olist | Text.Html |
| olive | Text.Html |
| onNewLine | System.Console.Readline |
| onNewLineWithPrompt | System.Console.Readline |
| oneOf | Text.ParserCombinators.Parsec.Char, Text.ParserCombinators.Parsec |
| oneof | Test.QuickCheck, Debug.QuickCheck |
| onsideIndent | Language.Haskell.Pretty |
| opLetter | Text.ParserCombinators.Parsec.Token, Text.ParserCombinators.Parsec.Language |
| opPrec | Language.Haskell.TH.Ppr |
| opStart | Text.ParserCombinators.Parsec.Token, Text.ParserCombinators.Parsec.Language |
| openBinaryFile | System.IO |
| openBinaryTempFile | System.IO |
| openDirStream | System.Posix.Directory, System.Posix |
| openDisplay | Graphics.X11.Xlib.Display, Graphics.X11.Xlib |
| openEndedPipe | System.Posix.Signals, System.Posix.Signals.Exts, System.Posix |
| openFd | System.Posix.IO, System.Posix |
| openFile | System.IO |
| openTempFile | System.IO |
| openWindow | Graphics.HGL.Utils, Graphics.HGL, Graphics.SOE |
| openWindowEx |
| 1 (Function) | Graphics.HGL.Window, Graphics.HGL.Core, Graphics.HGL |
| 2 (Function) | Graphics.SOE |
| operator | Text.ParserCombinators.Parsec.Token |
| option |
| 1 (Function) | Text.Html |
| 2 (Function) | Text.ParserCombinators.Parsec.Combinator, Text.ParserCombinators.Parsec |
| 3 (Function) | Text.ParserCombinators.ReadP, Distribution.Compat.ReadP |
| optional |
| 1 (Function) | Text.ParserCombinators.Parsec.Combinator, Text.ParserCombinators.Parsec |
| 2 (Function) | Text.ParserCombinators.ReadP, Distribution.Compat.ReadP |
| options | Distribution.PackageDescription |
| or | Data.List, Prelude |
| orEarlierVersion | Distribution.Version, Distribution.Simple |
| orElse |
| 1 (Function) | Data.Generics.Aliases, Data.Generics |
| 2 (Function) | GHC.Conc, Control.Concurrent.STM |
| orLaterVersion | Distribution.Version, Distribution.Simple |
| orP | Data.Graph.Inductive.Query.Monad, Data.Graph.Inductive.Query, Data.Graph.Inductive |
| orRegion | Graphics.SOE |
| ord | Data.Char |
| ordList | Text.Html |
| ortho | Graphics.Rendering.OpenGL.GL.CoordTrans, Graphics.Rendering.OpenGL.GL, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| ortho2D | Graphics.Rendering.OpenGL.GLU.Matrix, Graphics.Rendering.OpenGL.GLU, Graphics.Rendering.OpenGL, Graphics.UI.GLUT |
| os | System.Info |
| otherExecuteMode | System.Posix.Files, System.Posix |
| otherModes | System.Posix.Files, System.Posix |
| otherModules | Distribution.PackageDescription |
| otherReadMode | System.Posix.Files, System.Posix |
| otherWriteMode | System.Posix.Files, System.Posix |
| otherwise | Data.Bool, Prelude |
| out | Data.Graph.Inductive.Graph, Data.Graph.Inductive |
| out' | Data.Graph.Inductive.Graph, Data.Graph.Inductive |
| outdeg | Data.Graph.Inductive.Graph, Data.Graph.Inductive |
| outdeg' | Data.Graph.Inductive.Graph, Data.Graph.Inductive |
| outdegree | Data.Graph |
| outputSpeed | System.Posix.Terminal, System.Posix |
| overGraphic | Graphics.HGL.Utils, Graphics.HGL, Graphics.SOE |
| overGraphics | Graphics.HGL.Utils, Graphics.HGL, Graphics.SOE |
| overlayDisplayCallback | Graphics.UI.GLUT.Callbacks.Window, Graphics.UI.GLUT.Callbacks, Graphics.UI.GLUT |
| overlayPossible | Graphics.UI.GLUT.Overlay, Graphics.UI.GLUT |
| overlayVisible | Graphics.UI.GLUT.Overlay, Graphics.UI.GLUT |
| ownerExecuteMode | System.Posix.Files, System.Posix |
| ownerGrabButtonMask | Graphics.X11.Types, Graphics.X11.Xlib |
| ownerModes | System.Posix.Files, System.Posix |
| ownerReadMode | System.Posix.Files, System.Posix |
| ownerWriteMode | System.Posix.Files, System.Posix |
