The guillemet are used for left and right bit shifts in some programming languages including MSDN , C++ documentation and Shift Operators .
They resemble the symbols for lesser than ( < ) , greater than ( > ) , and for left and right bit shifts in some programming languages , MSDN , C++ documentation , Shift Operators : > > and < < MSDN , < < Operator ( C # Reference ) as well as rewind and fast forward on various media players , such as VCRs , DVD players , and MP3 players.
Guillemet