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add meta-predicate declarations to reif library

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This commit is contained in:
Mark Thom
2021-02-03 12:46:33 -07:00
parent f3ab17a3c0
commit 48f3f4ca37
1 changed files with 16 additions and 0 deletions
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16
src/lib/reif.pl
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@@ -4,6 +4,8 @@
:- use_module(library(dif)).
:- meta_predicate if_(0, 0, 0).
if_(If_1, Then_0, Else_0) :-
call(If_1, T),
( T == true -> call(Then_0)
@@ -26,6 +28,8 @@ dif(X, Y, T) :-
non(true, false).
non(false, true).
:- meta_predicate tfilter(1, ?, ?).
tfilter(C_2, Es, Fs) :-
i_tfilter(Es, C_2, Fs).
@@ -34,6 +38,8 @@ i_tfilter([E|Es], C_2, Fs0) :-
if_(call(C_2, E), Fs0 = [E|Fs], Fs0 = Fs),
i_tfilter(Es, C_2, Fs).
:- meta_predicate tpartition(1, ?, ?).
tpartition(P_2, Xs, Ts, Fs) :-
i_tpartition(Xs, P_2, Ts, Fs).
@@ -44,12 +50,18 @@ i_tpartition([X|Xs], P_2, Ts0, Fs0) :-
, ( Fs0 = [X|Fs], Ts0 = Ts ) ),
i_tpartition(Xs, P_2, Ts, Fs).
:- meta_predicate ','(0, 0, ?).
','(A_1, B_1, T) :-
if_(A_1, call(B_1, T), T = false).
:- meta_predicate ';'(0, 0, ?).
';'(A_1, B_1, T) :-
if_(A_1, T = true, call(B_1, T)).
:- meta_predicate cond_t(0, 0, ?).
cond_t(If_1, Then_0, T) :-
if_(If_1, ( Then_0, T = true ), T = false ).
@@ -60,8 +72,12 @@ i_memberd_t([], _, false).
i_memberd_t([X|Xs], E, T) :-
if_( X = E, T = true, i_memberd_t(Xs, E, T) ).
:- meta_predicate tmember(1, ?).
tmember(P_2, [X|Xs]) :-
if_( call(P_2, X), true, tmember(P_2, Xs) ).
:- meta_predicate tmember_t(1, ?).
tmember_t(P_2, [X|Xs], T) :-
if_( call(P_2, X), T = true, tmember_t(P_2, Xs, T) ).