Files
mercury/tests/tabling/completed_consumer_in_solutions.m
2018-07-08 23:20:52 +02:00

44 lines
1023 B
Mathematica

%---------------------------------------------------------------------------%
% vim: ts=4 sw=4 et ft=mercury
%---------------------------------------------------------------------------%
%
% This test case checks whether we get incorrect answers
% when a consumer accesses a completed generator inside solutions.
% The first call to solutions completes the generator for p,
% the second call accesses the completed generator.
:- module completed_consumer_in_solutions.
:- interface.
:- import_module io.
:- pred main(io::di, io::uo) is det.
:- implementation.
:- import_module int.
:- import_module list.
:- import_module solutions.
:- pragma require_feature_set([memo]).
main(!IO) :-
q(Solns1, Solns2),
io.write(Solns1, !IO),
io.write_string("\n", !IO),
io.write(Solns2, !IO),
io.write_string("\n", !IO).
:- pred q(list(int)::out, list(int)::out) is det.
q(L1, L2) :-
solutions(p, L1),
solutions(p, L2).
:- pragma minimal_model(p/1).
:- pred p(int::out) is nondet.
p(1).
p(2).
p(3).