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https://github.com/Mercury-Language/mercury.git
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38f1f5faf2
tests/hard_coded/bitmap_test_helper_1.m:
tests/hard_coded/curry_2_helper_1.m:
tests/hard_coded/deep_copy_bug.m:
tests/hard_coded/erroneous_liveness.m:
tests/hard_coded/foreign_type_1.m:
tests/hard_coded/hash_table_test.m:
tests/hard_coded/ho_float_reg.m:
tests/hard_coded/impl_def_lex_string.m:
tests/hard_coded/impure_foreign.m:
tests/hard_coded/intermod_multimode_helper_1.m:
tests/hard_coded/multimode.m:
tests/hard_coded/qual_is_test.m:
tests/hard_coded/string_codepoint.m:
tests/hard_coded/string_codepoint_offset_ilseq.m:
tests/hard_coded/string_count_codepoints_ilseq.m:
tests/hard_coded/string_set_char.m:
tests/hard_coded/version_hash_table_test_2.m:
tests/submodules/parent_t2.m:
tests/typeclasses/arbitrary_constraint_pred_1.m:
tests/typeclasses/arbitrary_constraint_pred_2.m:
tests/typeclasses/instance_unconstrained_tvar_type_spec.m:
tests/typeclasses/typeclass_order_bug_1.m:
Change code to avoid compiler warnings where this is (a) possible,
and (b) does not interfere with the purpose of the test.
tests/hard_coded/string_codepoint.exp:
tests/hard_coded/string_codepoint_offset_ilseq.exp:
tests/hard_coded/string_codepoint_offset_ilseq.exp2:
The changes to the source files of these tests changed all references
to "codepoint" to "code_point", including in the text they output.
Expect the updated output.
tests/general/Mercury.options:
tests/hard_coded/Mercury.options:
tests/typeclasses/Mercury.options:
tests/submodules/Mercury.options:
Disable many of the remaining warnings.
103 lines
2.1 KiB
Mathematica
103 lines
2.1 KiB
Mathematica
%---------------------------------------------------------------------------%
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% vim: ts=4 sw=4 et ft=mercury
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%---------------------------------------------------------------------------%
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:- module impure_foreign.
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:- interface.
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:- import_module io.
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:- impure pred main(io::di, io::uo) is det.
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:- implementation.
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:- import_module require.
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main(!IO) :-
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% Inlining this call forces recomputation of purity for main/2
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% (because of the `:- pragma promise_pure').
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% In some versions of this compiler, this recomputation would
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% erroneously infer that the inlined calls to incr/1 below
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% were `pure'. Duplicate call elimination would then remove
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% all but one of them.
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unsafe_get(Val0),
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io.write_int(Val0, !IO),
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io.nl(!IO),
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impure incr(_),
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impure incr(_),
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impure incr(_),
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semipure get(Val),
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io.write_int(Val, !IO),
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io.nl(!IO).
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:- pragma foreign_decl("C",
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"
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int counter;
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").
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:- pragma foreign_code("C",
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"
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int counter = 1;
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").
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:- pragma foreign_code("C#", "static int counter = 1;").
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:- pragma foreign_code("Java", "static int counter = 1;").
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:- impure pred incr(int::out) is det.
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incr(_) :-
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error("incr/1 called for language other than C").
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:- pragma foreign_proc("C",
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incr(Val::out),
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[will_not_call_mercury],
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"
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counter++; Val = counter;
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").
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:- pragma foreign_proc("C#",
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incr(Val::out),
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[will_not_call_mercury],
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"
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counter++; Val = counter;
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").
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:- pragma foreign_proc("Java",
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incr(Val::out),
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[will_not_call_mercury],
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"
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counter++; Val = counter;
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").
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:- semipure pred get(int::out) is det.
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get(_) :-
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error("get/1 called for language other than C").
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:- pragma foreign_proc("C",
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get(Val::out),
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[will_not_call_mercury, promise_semipure],
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"
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Val = counter
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").
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:- pragma foreign_proc("C#",
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get(Val::out),
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[will_not_call_mercury, promise_semipure],
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"
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Val = counter;
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").
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:- pragma foreign_proc("Java",
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get(Val::out),
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[will_not_call_mercury, promise_semipure],
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"
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Val = counter;
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").
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:- pred unsafe_get(int::out) is det.
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:- pragma promise_pure(unsafe_get/1).
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unsafe_get(X) :-
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semipure get(X).
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