| ra | Control.CP.FD.Solvers |
| Random | Control.Search.Language |
| randomD | Control.Search.Combinator.Base |
| randomV | Control.Search.Combinator.Base |
| readStat | Control.Search.Stat |
| Ref | Control.Search.Language |
| ref_count | Control.Search.Generator |
| ref_countx | Control.Search.Generator |
| ref_count_type | Control.Search.Generator |
| Rel | Data.Expr.Data |
| renderVar | Control.Search.Language |
| repeat | Control.Search.Combinator.Repeat |
| resetAbort | Control.Search.GeneratorInfo |
| resetClone | Control.Search.GeneratorInfo |
| resetCommit | Control.Search.GeneratorInfo |
| resetInfo | Control.Search.GeneratorInfo |
| resetPath | Control.Search.GeneratorInfo |
| restart | Control.CP.ComposableTransformers |
| RestartST | |
| 1 (Type/Class) | Control.CP.ComposableTransformers |
| 2 (Data Constructor) | Control.CP.ComposableTransformers |
| Return | Control.CP.SearchTree |
| returnE | Control.Search.Generator |
| returnH | Control.Search.Generator |
| returnT | Control.CP.Transformers |
| rightT | Control.CP.Transformers |
| RootSpace | Control.Search.Language |
| rp | Control.Search.Generator |
| rReaderT | Control.Search.Generator |
| run | Control.CP.Solver |
| runFD | Control.CP.FD.FD |
| runMemoReaderT | Control.Search.MemoReader |
| runMemoT | Control.Search.Memo |
| runner | Control.Search.Generator |
| runsearch | Control.Search.Generator |
| runSolve | Control.CP.FD.Example |
| runSStateT | Control.Search.SStateT |