mirror of
https://github.com/Mercury-Language/mercury.git
synced 2026-04-24 05:43:53 +00:00
71 lines
1.7 KiB
Mathematica
71 lines
1.7 KiB
Mathematica
% vim: ts=4 sw=4 et ft=mercury
|
|
|
|
:- module fib_stats.
|
|
|
|
:- interface.
|
|
|
|
:- import_module io.
|
|
|
|
:- pred main(io::di, io::uo) is det.
|
|
|
|
:- implementation.
|
|
|
|
:- import_module int.
|
|
:- import_module list.
|
|
:- import_module string.
|
|
:- import_module table_statistics.
|
|
|
|
:- pragma require_feature_set([memo]).
|
|
|
|
main(!IO) :-
|
|
test(1, 10, !IO),
|
|
test(11, 20, !IO).
|
|
|
|
:- pred test(int::in, int::in, io::di, io::uo) is det.
|
|
|
|
test(Cur, Max, !IO) :-
|
|
test_loop(Cur, Max, !IO),
|
|
table_statistics_for_mfib_2(Info, !IO),
|
|
Info = proc_table_statistics(CallTableStatsCurPrev,
|
|
_AnswerTableStatsCurPrev),
|
|
CallTableStatsCurPrev = table_stats_curr_prev(CallTableStatsCur,
|
|
CallTableStatsPrev),
|
|
io.nl(!IO),
|
|
io.format("Previous call table for mfib, test %d to %d:\n",
|
|
[i(Cur), i(Max)], !IO),
|
|
write_table_stats(CallTableStatsPrev, !IO),
|
|
io.nl(!IO),
|
|
io.format("Current call table for mfib, test %d to %d:\n",
|
|
[i(Cur), i(Max)], !IO),
|
|
write_table_stats(CallTableStatsCur, !IO),
|
|
io.nl(!IO),
|
|
io.format("Call table difference (curr - prev) for mfib, test %d to %d:\n",
|
|
[i(Cur), i(Max)], !IO),
|
|
CallTableStatsDiff =
|
|
table_stats_difference(CallTableStatsCur, CallTableStatsPrev),
|
|
write_table_stats(CallTableStatsDiff, !IO),
|
|
io.nl(!IO).
|
|
|
|
:- pred test_loop(int::in, int::in, io::di, io::uo) is det.
|
|
|
|
test_loop(Cur, Max, !IO) :-
|
|
( if Cur =< Max then
|
|
mfib(Cur, Fib),
|
|
io.format("fib(%d): %d\n", [i(Cur), i(Fib)], !IO),
|
|
test_loop(Cur + 1, Max, !IO)
|
|
else
|
|
true
|
|
).
|
|
|
|
:- pred mfib(int::in, int::out) is det.
|
|
:- pragma memo(mfib/2, [statistics]).
|
|
|
|
mfib(N, F) :-
|
|
( if N < 2 then
|
|
F = 1
|
|
else
|
|
mfib(N - 1, F1),
|
|
mfib(N - 2, F2),
|
|
F = F1 + F2
|
|
).
|