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By default Coq stdlib warnings raise an error, so this is really required.
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Add headers to a few files which were missing them.
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Previously, hints added without a specified database where implicitly
put in the "core" database, which was discouraged by the user manual
(because of the lack of modularity of this approach).
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enough
In particular, its interface might still change (in interaction with interested
colleagues). So let's not give it too much visibility yet. Instead, I'll turn
it as an opam packages for now.
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NB: this is work-in-progress, there is currently only one
provided implementation (MMapWeakList).
In the same spirit as MSets w.r.t FSets, the main difference between
MMaps and former FMaps is the use of a new version of OrderedType
(see Orders.v instead of obsolete OrderedType.v).
We also try to benefit more from recent notions such as Proper.
For most function specifications, the style has changed : we now use
equations over "find" instead of "MapsTo" predicates, whenever possible
(cf. Maps in Compcert for a source of inspiration). Former specs are
now derived in FMapFacts, so this is mostly a matter of taste.
Two changes inspired by the current Maps of OCaml:
- "elements" is now "bindings"
- "map2" is now "merge" (and its function argument also receives a key).
We now use a maximal implicit argument for "empty".
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- tauto/intuition now works uniformly on and, prod, or, sum, False,
Empty_set, unit, True (and isomorphic copies of them), iff, ->, and
on all inhabited singleton types with a no-arguments constructor
such as "eq t t" (even though the last case goes out of
propositional logic: this features is so often used that it is
difficult to come back on it).
- New dtauto and dintuition works on all inductive types with one
constructors and no real arguments (for instance, they work on
records such as "Equivalence"), in addition to -> and eq-like types.
- Moreover, both of them no longer unfold inner negations (this is a
souce of incompatibility for intuition and evaluation of the level
of incompatibility on contribs still needs to be done).
Incidentally, and amazingly, fixing bug #2680 made that constants
InfA_compat and InfA_eqA in SetoidList.v lost one argument: old tauto
had indeed destructed a section hypothesis "@StrictOrder A ltA@
thinking it was a conjunction, making this section hypothesis
artificially necessary while it was not.
Renouncing to the unfolding of inner negations made auto/eauto
sometimes succeeding more, sometimes succeeding less. There is by the
way a (standard) problem with not in auto/eauto: even when given as an
"unfold hint", it works only in goals, not in hypotheses, so that auto
is not able to solve something like "forall P, (forall x, ~ P x) -> P
0 -> False". Should we automatically add a lemma of type "HYPS -> A ->
False" in the hint database everytime a lemma ""HYPS -> ~A" is
declared (and "unfold not" is a hint), and similarly for all unfold
hints?
At this occasion, also re-did some proofs of Znumtheory.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15180 85f007b7-540e-0410-9357-904b9bb8a0f7
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Might be too much of a backwards-incompatible change"
Indeed it is breaking too many scripts.
This reverts commit 47e9afaaa4c08aca97d4f4b5a89cb40da76bd850.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14956 85f007b7-540e-0410-9357-904b9bb8a0f7
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too much of a backwards-incompatible change
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14949 85f007b7-540e-0410-9357-904b9bb8a0f7
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conversion when checking types of instanciations while having
restricted delta reduction for unification itself. This
makes auto/eauto... backward compatible.
- Change semantics of [Instance foo : C a.] to _not_ search
for an instance of [C a] automatically and potentially slow
down interaction, except for trivial classes with no fields.
Use [C a := _.] or [C a := {}] to search for an instance of
the class or for every field.
- Correct treatment of transparency information for classes
declared in sections.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13908 85f007b7-540e-0410-9357-904b9bb8a0f7
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Old stuff DecidableType.v and OrderedType.v stay there and keep their
names for the moment, for compatibility.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12641 85f007b7-540e-0410-9357-904b9bb8a0f7
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