FX-87
Effects. A {polymorphic} language based on {Scheme}, allowing
{side effects} and {first-class} functions. It attempts to
integrate functional and {imperative programming}.
Expressions have types, side effects (e.g. reading, writing or
allocating) and regions (stating where the effects may occur).
Versions: FX-89, {FX-90}.
(ftp://brokaw.lcs.mit.edu/).
["The FX-87 Reference Manual", D.K. Gifford
<[email protected]> et al, MIT/LCS/TR-407, Oct 1987].
(1995-01-31)