Files
mercury/tests/dppd/ssuply_impl.m
Zoltan Somogyi 33eb3028f5 Clean up the tests in half the test directories.
tests/accumulator/*.m:
tests/analysis_*/*.m:
tests/benchmarks*/*.m:
tests/debugger*/*.{m,exp,inp}:
tests/declarative_debugger*/*.{m,exp,inp}:
tests/dppd*/*.m:
tests/exceptions*/*.m:
tests/general*/*.m:
tests/grade_subdirs*/*.m:
tests/hard_coded*/*.m:
    Make these tests use four-space indentation, and ensure that
    each module is imported on its own line. (I intend to use the latter
    to figure out which subdirectories' tests can be executed in parallel.)

    These changes usually move code to different lines. For the debugger tests,
    specify the new line numbers in .inp files and expect them in .exp files.
2015-02-14 20:14:03 +11:00

143 lines
3.3 KiB
Mathematica

%---------------------------------------------------------------------------%
% vim: ts=4 sw=4 et ft=mercury
%---------------------------------------------------------------------------%
:- module ssuply_impl.
:- interface.
:- type supplier
---> s1
; s2
; s3
; s4
; s5.
:- type part
---> p1
; p2
; p3.
:- type supplier_name
---> smith
; jones
; blake
; clark
; adams.
:- type city
---> london
; paris
; athens
; hongkong
; regina
; saskatoon
; rome.
:- pred ssuply(supplier::in, part::in, int::out) is semidet.
:- implementation.
:- import_module int.
ssuply(Snum, Pnum, Qty) :-
london_red_heavy_parts(Pnum, _Pname, _Weight),
best_suppliers(Snum, _Sname, _Status, _City),
supply(Snum, Pnum, Qty).
:- pred best_suppliers(supplier::in, supplier_name::out,
int::out, city::out) is nondet.
best_suppliers(Snum, Sname, Status, Scity) :-
good_suppliers(Snum, Sname, Status, Scity),
good_cities(City),
City = Scity.
:- pred good_suppliers(supplier::in, supplier_name::out,
int::out, city::out) is semidet.
good_suppliers(Snum, Sname, Status, City) :-
suppliers(Snum, Sname, Status, City),
Status > 10 .
:- pred london_red_heavy_parts(part::in, part_name::out, int::out) is semidet.
london_red_heavy_parts(Pnum, Pname, Weight) :-
london_red_parts(Pnum, Pname, Weight),
london_heavy_weights(Pno, Pname, _Colour, Weight),
Pnum = Pno .
:- pred london_red_parts(part::in, part_name::out, int::out) is semidet.
london_red_parts(Pnum, Pname, Weight) :-
red_parts(Pnum, Pname, Weight, City),
City = london .
:- pred red_parts(part::in, part_name::out, int::out, city::out) is semidet.
red_parts(Pnum, Pname, Weight, City) :-
parts(Pnum, Pname, Colour, Weight, City),
Colour = red .
:- pred london_heavy_weights(part::in, part_name::in,
colour::out, int::out) is semidet.
london_heavy_weights(Pnum, Pname, Colour, Weight) :-
heavy_weights(Pnum, Pname, Colour, Weight, City),
City = london .
:- pred heavy_weights(part::in, part_name::in, colour::out,
int::out, city::out) is semidet.
heavy_weights(Pnum, Pname, Colour, Weight, City) :-
parts(Pnum, Pname, Colour, Weight, City),
Weight > 10 .
:- pred good_cities(city).
:- mode good_cities(in) is semidet.
:- mode good_cities(out) is multi.
good_cities(paris).
good_cities(london).
good_cities(hongkong).
good_cities(regina).
good_cities(saskatoon).
:- pred supply(supplier::in, part::in, int::out) is semidet.
supply(s1, p1, 300).
supply(s1, p2, 200).
supply(s1, p3, 400).
supply(s2, p1, 300).
supply(s2, p2, 400).
supply(s3, p1, 400).
supply(s4, p1, 200).
supply(s5, p1, 500).
supply(s5, p2, 400).
:- type part_name
---> nut
; bolt
; screw.
:- type colour
---> red
; green
; blue.
:- pred parts(part::in, part_name::out, colour::out,
int::out, city::out) is det.
parts(p1, nut, red, 12, london).
parts(p2, bolt, green, 17, paris).
parts(p3, screw, blue, 17, rome).
:- pred suppliers(supplier::in, supplier_name::out,
int::out, city::out) is det.
suppliers(s1, smith, 20, london).
suppliers(s2, jones, 10, paris).
suppliers(s3, blake, 30, paris).
suppliers(s4, clark, 20, london).
suppliers(s5, adams, 30, athens).