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56e818af67
Estimated hours taken: 5.5 Branches: main Implement compare_representation/3, which is like compare except that it is cc_multi, and it doesn't abort on non-canonical types. The implementation only works for the LLDS backend; in other cases, the runtime aborts with a "sorry" message. For this reason, it is not officially part of the standard library yet. library/std_util.m: Add the new predicate, which is implemented via "external". runtime/mercury_ho_call.c: Implement compare_representation/3, and also a C version. runtime/mercury_unify_compare_body.h: Implement the body of compare_representation/3. When the macro include_compare_rep_code is defined comparison of preds and funcs doesn't abort, the code that is used for MR_COMPARE_BY_RTTI is enabled, and usereq types are treated as normal types. runtime/mercury_conf_param.h: Document the fact that calls to compare_representation are counted as calls to compare for the purposes of MR_TYPE_CTOR_STATS. runtime/Mmakefile: Bug fix: add missing pic_o versions of the explicit dependencies. Use variables for the suffixes in these dependencies. runtime/mercury.c: runtime/mercury.h: Supply a HIGHLEVEL_CODE version of the new predicate. This just gives a "Sorry, not implemented" message and aborts. tests/hard_coded/Mmakefile: tests/hard_coded/compare_rep_usereq.exp: tests/hard_coded/compare_rep_usereq.m: tests/hard_coded/compare_representation.exp: tests/hard_coded/compare_representation.m: Test cases. tests/hard_coded/compare_rep_array.m: A test case which doesn't work yet.
9 lines
66 B
Plaintext
9 lines
66 B
Plaintext
aa : foo
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aa : foo
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Result = '='.
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aa : foo
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bb : foo
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Result = '<'.
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