Top 1,000 Features Creators Events Podcasts Extensions Blog Explorer CSV Download


< >

Janus is a programming language created in 1982 by Christopher Lutz and Howard Derby and Tetsuo Yokoyama and Robert Gl眉ck.

#1875on PLDB 42Years Old

Janus is a time-reversible programming language written at Caltech in 1982. The operational semantics of the language were formally specified, together with a program inverter and an invertible self-interpreter, in 2007 by Tetsuo Yokoyama and Robert Gl眉ck. A Janus inverter and interpreter is made freely available by the TOPPS research group at DIKU. Read more on Wikipedia...

Example from Wikipedia:
procedure fib from i = 2 do i += 1 x1 <=> x2 x1 -= x2 loop until i = n

View source

- Build the next great programming language About Resources Acknowledgements Part of the World Wide Scroll