Opal (programming language)
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OPAL (OPtimized Applicative Language) is a functional programming language first developed at Technische Universität Berlin. There is a later framework for static code analysis also called Opal.
OPAL (OPtimized Applicative Language) is a functional programming language first developed at Technische Universität Berlin. There is a later framework for static code analysis also called Opal. ==Example program== This is an example OPAL program, which calculates the GCD recursively. Signature file (declaration) SIGNATURE GCD FUN GCD: nat ** nat -> nat Implementation file (definition) IMPLEMENTATION GCD IMPORT Nat COMPLETELY DEF GCD(a,b) == IF a % b = 0 THEN b ELSE IF a-b < b THEN GCD(b,a-b) ELSE GCD(a-b,b) FI FI ==References== ==External links== The OPAL Home Page, archived, last modified 30 September 2010. OPAL Installation Guide, archived.
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