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https://github.com/Mercury-Language/mercury.git
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9cacd33f47
This first step deals with the consequences of such removal.
The removal itself will happen in stage 2. That step will
add "is" to the prolog module in the library.
compiler/add_pred.m:
Prepare for "is" being in the prolog module.
compiler/options.m:
Add a way to test whether the change to add_pred.m is in the
installed compiler.
tests/accumulator/base.m:
tests/accumulator/call_in_base.m:
tests/accumulator/chain.m:
tests/accumulator/commutative.m:
tests/accumulator/construct_test.m:
tests/accumulator/dcg.m:
tests/accumulator/deconstruct_test.m:
tests/accumulator/disj.m:
tests/accumulator/func.m:
tests/accumulator/heuristic.m:
tests/accumulator/highorder.m:
tests/accumulator/identity.m:
tests/accumulator/inter.m:
tests/accumulator/nonrec.m:
tests/accumulator/out_to_in.m:
tests/accumulator/qsort.m:
tests/accumulator/simple.m:
tests/accumulator/split.m:
tests/accumulator/swap.m:
tests/benchmarks/cqueens.m:
tests/benchmarks/crypt.m:
tests/benchmarks/deriv.m:
tests/benchmarks/deriv2.m:
tests/benchmarks/nrev.m:
tests/benchmarks/poly.m:
tests/benchmarks/primes.m:
tests/benchmarks/qsort.m:
tests/benchmarks/query.m:
tests/benchmarks/tak.m:
tests/debugger/interactive.m:
tests/declarative_debugger/Mercury.options:
tests/declarative_debugger/io_read_bug.m:
tests/declarative_debugger/queens.exp:
tests/declarative_debugger/queens.m:
tests/dppd/imperative_solve_impl.m:
tests/dppd/map_impl.m:
tests/dppd/max_length_impl.m:
tests/dppd/sum.m:
tests/dppd/upto_sum_impl.m:
tests/par_conj/dep_par_21.m:
tests/tabling/seq.m:
tests/term/dds3_14.m:
tests/term/mmatrix.m:
tests/term/money.m:
tests/term/occur.m:
tests/term/pl4_5_2.m:
tests/term/queens.m:
tests/typeclasses/inference_test.m:
tests/typeclasses/inference_test_2.m:
tests/valid/lazy_list.m:
tests/warnings/duplicate_const.m:
Replace calls to "is" with unifications. In many places,
bring programming style up to date.
81 lines
1.9 KiB
Mathematica
81 lines
1.9 KiB
Mathematica
%---------------------------------------------------------------------------%
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% vim: ts=4 sw=4 et ft=mercury
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%---------------------------------------------------------------------------%
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%
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% qsort
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%
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% David H. D. Warren
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%
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% quicksort a list of 50 integers
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:- module qsort.
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:- interface.
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:- import_module io.
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:- pred main(io::di, io::uo) is det.
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:- implementation.
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:- import_module int.
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:- import_module list.
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main(!IO) :-
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data(Data),
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qsort(Data, [], SortedData),
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print_list(SortedData, !IO).
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:- pred data(list(int)::out) is det.
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data([27, 74, 17, 33, 94, 18, 46, 83, 65, 2, 32, 53, 28, 85, 99, 47, 28, 82,
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6, 11, 55, 29, 39, 81, 90, 37, 10, 0, 66, 51, 7, 21, 85, 27, 31, 63, 75,
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4, 95, 99, 11, 28, 61, 74, 18, 92, 40, 53, 59, 8]).
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:- pred qsort(list(int)::in, list(int)::in, list(int)::out) is det.
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qsort([], !SortedRest).
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qsort([H | T], !SortedRest) :-
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partition(T, H, Los, His),
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qsort(His, !SortedRest),
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!:SortedRest = [H | !.SortedRest],
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qsort(Los, !SortedRest).
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:- pred partition(list(int), int, list(int), list(int)).
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:- mode partition(in, in, out, out) is det.
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partition([], _P, [], []).
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partition([H | T], Pivot, Lo, Hi) :-
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( if H =< Pivot then
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partition(T, Pivot, LoTail, Hi),
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Lo = [H | LoTail]
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else
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partition(T, Pivot, Lo, HiTail),
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Hi = [H | HiTail]
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).
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:- pred print_list(list(int)::in, io::di, io::uo) is det.
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print_list(Xs, !IO) :-
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(
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Xs = [],
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io.write_string("[]\n", !IO)
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;
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Xs = [H | T],
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io.write_string("[", !IO),
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print_list_elements(H, T, !IO),
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io.write_string("]\n", !IO)
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).
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:- pred print_list_elements(int::in, list(int)::in, io::di, io::uo) is det.
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print_list_elements(X, Xs, !IO) :-
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io.write_int(X, !IO),
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(
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Xs = []
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;
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Xs = [H | T],
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io.write_string(", ", !IO),
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print_list_elements(H, T, !IO)
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).
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