mirror of
https://github.com/Mercury-Language/mercury.git
synced 2026-04-16 18:03:36 +00:00
ecb5e4a9e6
tests/declarative_debugger/*.m:
tests/exceptions/*.m:
tests/general/*.m:
tests/grade_subdirs/*.m:
tests/purity/*.m:
tests/submodules/*.m:
tests/typeclasses/*.m:
Update programming style.
tests/declarative_debugger/*.inp:
Update line numbers in breakpoint commands.
tests/declarative_debugger/*.exp:
Update expected line numbers.
tests/exceptions/Mercury.options:
tests/general/Mercury.options:
Disable some warnings that are irrelevant to the test.
44 lines
709 B
Mathematica
44 lines
709 B
Mathematica
%---------------------------------------------------------------------------%
|
|
% vim: ts=4 sw=4 et ft=mercury
|
|
%---------------------------------------------------------------------------%
|
|
|
|
:- module backtrack.
|
|
:- interface.
|
|
|
|
:- import_module io.
|
|
|
|
:- pred main(io::di, io::uo) is det.
|
|
|
|
:- implementation.
|
|
|
|
:- import_module bool.
|
|
:- import_module library_forwarding.
|
|
|
|
main(!IO) :-
|
|
p(1, R),
|
|
io.write(R, !IO),
|
|
io.nl(!IO).
|
|
|
|
:- pred p(int::in, bool::out) is det.
|
|
|
|
p(N, R) :-
|
|
( if
|
|
some [M] (
|
|
M > 5,
|
|
q(N, M)
|
|
)
|
|
then
|
|
R = yes
|
|
else
|
|
R = no
|
|
).
|
|
|
|
:- pred q(int::in, int::out) is nondet.
|
|
|
|
q(0, 0).
|
|
q(1, 1).
|
|
q(1, 2).
|
|
q(1, 3).
|
|
q(2, 2).
|
|
q(2, 4).
|