Index - M
| magnitude | Complex |
| malloc | MarshalAlloc |
| mallocArray | MarshalArray |
| mallocArray0 | MarshalArray |
| mallocBytes | MarshalAlloc |
| mallocForeignPtr | ForeignPtr |
| mallocForeignPtrArray | ForeignPtr |
| mallocForeignPtrArray0 | ForeignPtr |
| mallocForeignPtrBytes | ForeignPtr |
| map | List |
| mapAccumL | List |
| mapAccumR | List |
| mapAndUnzipM | Monad |
| mapM | Monad |
| mapMaybe | Maybe |
| mapM_ | Monad |
| March | Time |
| maximum | List |
| maximumBy | List |
| May | Time |
| Maybe | Maybe |
| maybe | Maybe |
| maybeNew | MarshalUtils |
| maybePeek | MarshalUtils |
| maybeToList | Maybe |
| maybeWith | MarshalUtils |
| minimum | List |
| minimumBy | List |
| minusPtr | Ptr |
| mkIOError | MarshalError |
| mkPolar | Complex |
| mkStdGen | Random |
| Monad | Monad |
| MonadPlus | Monad |
| Monday | Time |
| Month | Time |
| months | Locale |
| moveArray | MarshalArray |
| moveBytes | MarshalUtils |
| mplus | Monad |
| msum | Monad |
| mzero | Monad |