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2bd7c5ee3e
tests/hard_coded/*.m:
Rename modules as mentioned above.
In a few cases, where the main module's name itself had a suffix,
such as "_mod_a" or "_main", remove that suffix. This entails
renaming the .exp file as well. (In some cases, this meant that
the name of a helper module was "taken over" by the main module
of the test case.)
Update all references to the moved modules.
General updates to programming style, such as
- replacing DCG notation with state var notation
- replacing (C->T;E) with (if C then T else E)
- moving pred/func declarations to just before their code
- replacing io.write/io.nl sequences with io.write_line
- replacing io.print/io.nl sequences with io.print_line
- fixing too-long lines
- fixing grammar errors in comments
tests/hard_coded/Mmakefile:
tests/hard_coded/Mercury.options:
Update all references to the moved modules.
Enable the constant_prop_int test case. The fact that it wasn't enabled
before is probably an accident. (When constant_prop_int.m was created,
the test case was added to a list in the Mmakefile, but that list
was later removed due to never being referenced.)
tests/hard_coded/constant_prop_int.{m,exp}:
Delete the calls to shift operations with negative shift amounts,
since we have added a compile-time error for these since the test
was originally created.
53 lines
1.4 KiB
Mathematica
53 lines
1.4 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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% The following program compiles incorrectly on PPC/MacOS X in grade reg.gc.
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% find_nth_yes/4 ends up throwing an exception instead of returning `YesPos =
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% 3'. Passing `--no-optimize-fulljumps' causes the test to pass.
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%
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% The test passes with gcc 2.95.2 (Apple version) but fails with gcc 3.3
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% (Apple version).
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%
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% The problem was that gcc's `-floop-optimize' options was incompatible
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% with our use of global registers. The fix is to make sure that option
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% is disabled on powerpc-apple-darwin.
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:- module ppc_bug.
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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 list.
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:- import_module int.
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:- import_module bool.
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:- import_module std_util.
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:- import_module exception.
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main(!IO) :-
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find_nth_yes([yes, no, yes, yes], 2, 1, X),
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io.write_int(X, !IO),
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io.nl(!IO).
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:- pred find_nth_yes(list(bool)::in, int::in, int::in, int::out) is det.
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find_nth_yes([], _, _, _) :-
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throw("no").
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find_nth_yes([B | Bs], N, Cur, YesPos) :-
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(
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B = no,
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find_nth_yes(Bs, N, Cur + 1, YesPos)
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;
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B = yes,
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( if N = 1 then
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YesPos = Cur
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else
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find_nth_yes(Bs, N - 1, Cur + 1, YesPos)
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)
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).
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