make.fixedwidth         Convert Character Vectors From Variable To
                        Constant Width
mmap                    Map And Unmap Pages of Memory
mmap.csv                Memory Map Text File
mmapFlags               Create Bitwise Flags for mmap.
mprotect                Control Protection of Pages
msync                   Synchronize Memory With Physical Storage
sizeof                  Calculate the Size of Datatypes
struct                  Construct a Ctype struct
types                   Virtual R Types On Disk.
