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The following Comparison of Prolog implementations provides a reference for the relative feature sets and performance of different implementations of the Prolog computer programming language. A comprehensive discussion of the most significant Prolog systems is presented in an article published in the 50-years of Prolog anniversary issue of the ...
Lisp originally had very few control structures, but many more were added during the language's evolution. (Lisp's original conditional operator, cond, is the precursor to later if-then-else structures.) Programmers in the Scheme dialect often express loops using tail recursion. Scheme's commonality in academic computer science has led some ...
Common Lisp: General Yes Yes Yes Yes Yes Yes Extensible syntax, Array-oriented, syntactic macros, multiple dispatch, concurrent Yes 1994, ANSI COMAL 80 Education Yes No No Yes No No No Crystal: General purpose Yes Yes [21] Yes Yes Yes [22] No Concurrent [23] No Curry: Application No No Yes No Yes No lazy evaluation, non-determinism
Assembly languages directly correspond to a machine language (see below), so machine code instructions appear in a form understandable by humans, although there may not be a one-to-one mapping between an individual statement and an individual instruction.
Operationally, Prolog's execution strategy can be thought of as a generalization of function calls in other languages, one difference being that multiple clause heads can match a given call. In that case, the system creates a choice-point, unifies the goal with the clause head of the first alternative, and continues with the goals of that first ...
A Computational Logic for Applicative Common Lisp consists of a programming language, an extensible theory in a first-order logic, and a mechanical theorem prover [3] Arc: 2008: Paul Graham: Dialect of Lisp developed by Paul Graham and Robert Morris [4] AutoLISP: 1986: David Betz: Built to include and use with the full version of AutoCAD and ...
Line vs. block – a line comment starts with a delimiter and continues to the end of the line (newline marker) whereas a block comment starts with one delimiter and ends with another and can cross lines; Nestable – whether a block comment can be inside another block comment
Prolog: dynamic Pure: dynamic PureScript: strong implicit with optional explicit typing nominal static Python: strong implicit (with optional explicit typing as of 3.5) nominal dynamic R: implicit dynamic Raku: partially implicit [TS 7] dynamic with optional static typing REBOL: strong implicit dynamic Rexx: typeless —, implicit wrt numbers —