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  2. Guarded Command Language - Wikipedia

    en.wikipedia.org/wiki/Guarded_Command_Language

    The Guarded Command Language (GCL) is a programming language defined by Edsger Dijkstra for predicate transformer semantics in EWD472. [1] It combines programming concepts in a compact way. It makes it easier to develop a program and its proof hand-in-hand, with the proof ideas leading the way; moreover, parts of a program can actually be ...

  3. Guarded commands - Wikipedia

    en.wikipedia.org/?title=Guarded_commands&redirect=no

    Download as PDF; Printable version; In other projects Appearance. move to sidebar hide. From Wikipedia, the free encyclopedia. Redirect page. Redirect to: Guarded ...

  4. Conditional (computer programming) - Wikipedia

    en.wikipedia.org/wiki/Conditional_(computer...

    The Guarded Command Language (GCL) of Edsger Dijkstra supports conditional execution as a list of commands consisting of a Boolean-valued guard (corresponding to a condition) and its corresponding statement. In GCL, exactly one of the statements whose guards is true is evaluated, but which one is arbitrary.

  5. Concurrent logic programming - Wikipedia

    en.wikipedia.org/wiki/Concurrent_logic_programming

    Concurrent logic programming is a variant of logic programming deesigned for parallel computing in which programs are sets of guarded Horn clauses of the form: H :- G 1, …, G n | B 1, …, B n. The conjunction G 1, … , G n is called the guard of the clause, and | is the commitment operator.

  6. Guarded logic - Wikipedia

    en.wikipedia.org/wiki/Guarded_logic

    A guarded bisimulation between two τ-structures A and B is a non-empty set I of finite partial isomorphic f: X → Y from A to B such that the back and forth conditions are satisfied. Back: For every f: X → Y in I and for every guarded set Y` ⊆ B, there exists a partial isomorphic g: X` → Y` in I such that f^-1 and g^-1 agree on Y ∩ Y`.

  7. Guarded suspension - Wikipedia

    en.wikipedia.org/wiki/Guarded_suspension

    Because it is blocking, the guarded suspension pattern is generally only used when the developer knows that a method call will be suspended for a finite and reasonable period of time. If a method call is suspended for too long, then the overall program will slow down or stop, waiting for the precondition to be satisfied.

  8. Guard (computer science) - Wikipedia

    en.wikipedia.org/wiki/Guard_(computer_science)

    In computer programming, a guard is a Boolean expression that must evaluate to true if the execution of the program is to continue in the branch in question. Regardless of which programming language is used, a guard clause, guard code, or guard statement is a check of integrity preconditions used to avoid errors during execution.

  9. Talk:Guarded Command Language - Wikipedia

    en.wikipedia.org/wiki/Talk:Guarded_Command_Language

    5 This repetition ends when b = 0, in which case the variables hold the solution to Bézout's identity: xa + yb = gcd(a,b).