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yap-6.3/pl/ground.yap

51 lines
1.1 KiB
Prolog

/*************************************************************************
* *
* YAP Prolog *
* *
* Yap Prolog was developed at NCCUP - Universidade do Porto *
* *
* Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 *
* *
**************************************************************************
* *
* File: ground.pl *
* Last rev: *
* mods: *
* comments: Variables and ground *
* *
*************************************************************************/
/**
* @file ground.yap
* @author VITOR SANTOS COSTA <vsc@VITORs-MBP-2.lan>
* @date Thu Oct 19 12:01:27 2017
*
* @brief term operations
*
*/
/**
* @addtogroup YAPTypes
* @{
*
*
*/
/*
% grounds all free variables
% as terms of the form '$VAR'(N)
_numbervars(Term, M, N) :-
'$variables_in_term'(Term, [], L),
'$numbermarked_vars'(L, M, N).
'$numbermarked_vars'([], M, M).
'$numbermarked_vars'([V|L], M, N) :-
attvar(V), !,
'$numbermarked_vars'(L, M, N).
'$numbermarked_vars'(['$VAR'(M)|L], M, N) :-
M1 is M+1,
'$numbermarked_vars'(L, M1, N).
*/
%% @}