Test Nrev

Jan Burse, erstellt 15. Sep 2018
/**
* Prolog code for the naïve reverse benchmark.
*
* This is the benchmark of page 219 of:
* Warren, D.H.D. (1983): Applied Logic - Its Use and
* Implementation as a Programming Tool,
* Technical Note 290, SRI International, 1983
*
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* provided by XLOG Technologies GmbH.
*
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* and patent rights in particular - are the sole property of XLOG
* Technologies GmbH. If the company was not the originator of some
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*
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* The library can be distributed as part of your applications and libraries
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*
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*/
/*****************************************************************/
/* Normal Test Cases */
/*****************************************************************/
% nrev
rev(X, _).
% datanrev(-List)
datanrev([1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,
21,22,23,24,25,26,27,28,29,30]).
/*****************************************************************/
/* Reduced Test Cases */
/*****************************************************************/
% rnrev
rev(X, _).
% rdatanrev(-List)
rdatanrev([1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17]).
/*****************************************************************/
/* The Pre3dicates */
/*****************************************************************/
% rev(+List, -List)
rev([], []).
rev([X|Rest], Ans) :-
rev(Rest, L),
concatenate(L, [X], Ans).
% concatenate(+List, +List, -List)
concatenate([], L, L).
concatenate([X|L1], L2, [X|L3]) :-
concatenate(L1, L2, L3).

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