1. 11 Jul, 2016 1 commit
    • Robbert Krebbers's avatar
      Remove CollectionOps class. · 8a431343
      Robbert Krebbers authored
      This class whose name is horrible and purpose is arbitrary seems to be a
      leftover of some experiment with ch2o, a long time a ago.
      8a431343
  2. 01 Jul, 2016 1 commit
  3. 01 Jun, 2016 3 commits
  4. 30 May, 2016 1 commit
  5. 29 May, 2016 1 commit
  6. 27 May, 2016 5 commits
  7. 13 Apr, 2016 1 commit
  8. 02 Mar, 2016 1 commit
  9. 16 Feb, 2016 3 commits
  10. 13 Feb, 2016 2 commits
    • Robbert Krebbers's avatar
      Use new Import/Export syntax everywhere. · 7dd32d7d
      Robbert Krebbers authored
      Also, make our redefinition of done more robust under different
      orders of Importing modules.
      7dd32d7d
    • Robbert Krebbers's avatar
      Make reflexivity hints work for evars. · 86803d3a
      Robbert Krebbers authored
      Since Coq 8.4 did not backtrack on eauto premises, we used to ensure
      that hints like
      
        Hint Extern 0 (?x ≡{_}≡ ?y) => reflexivity.
      
      were not used for goals involving evars by writing ?x ≡{_}≡ ?y instead
      of _ ≡{_}≡ _.
      
      This seems to be a legacy issue that no longer applies to Coq 8.5, so
      I have removed these restrictions making these hints thus more powerful.
      86803d3a
  11. 11 Feb, 2016 1 commit
  12. 10 Feb, 2016 1 commit
  13. 16 Jan, 2016 2 commits
  14. 12 Jan, 2016 1 commit
  15. 21 Dec, 2015 1 commit
  16. 15 Dec, 2015 1 commit
  17. 19 Nov, 2015 1 commit
  18. 18 Nov, 2015 2 commits
  19. 17 Nov, 2015 1 commit
  20. 16 Nov, 2015 1 commit
  21. 03 Feb, 2017 1 commit
  22. 01 Feb, 2017 2 commits
    • Robbert Krebbers's avatar
      Port to Coq 8.5 beta 2. · 02f213ce
      Robbert Krebbers authored
      The port makes the following notable changes:
      
      * The carrier types of separation algebras and integer environments are no
        longer in Set. Now they have a type at a fixed type level above Set. This
        both works better in 8.5 and makes the formalization more general.
        I have tried putting them at polymorphic type levels, but that increased the
        compilation time by an order of magnitude.
      * I am using a custom f_equal tactic written in Ltac to circumvent bug #4069.
        That bug has been fixed, so this custom tactic can be removed when the next
        beta of 8.5 is out.
      02f213ce
    • Robbert Krebbers's avatar
      Misc prelude omissions. · 462ea92a
      Robbert Krebbers authored
      462ea92a
  23. 10 Jun, 2015 1 commit
  24. 25 Feb, 2015 1 commit
  25. 13 Feb, 2015 1 commit
  26. 08 Feb, 2015 2 commits
    • Robbert Krebbers's avatar
      Update copyright headers. · 5a73c4ed
      Robbert Krebbers authored
      5a73c4ed
    • Robbert Krebbers's avatar
      Support function pointers and use a state monad in the frontend. · b2109c25
      Robbert Krebbers authored
      Important changes in the core semantics:
      * Types extended with function types. Since function types are a special kind
        of pointer types, types now have an additional mutual part called "ptr_type".
      * Pointers extended with function pointers. Theses are just names that refer
        to an actual function in the function environment.
      * Typing environments extended to assign argument and return types to function
        names. Before we used a separate environment for these, but since the
        argument and return types are already needed to type function pointers, this
        environment would appear in pretty much every typing judgment.
      
      As a side-effect, the frontend has been rewritten entirely. The important
      changes are:
      
      * Type checking of expressions is more involved: there is a special kind of
        expression type corresponding to a function designator.
      * To handle things like block scoped extern function, more state-fullness was
        needed. To prepare for future extensions, the entire frontend now uses a
        state monad.
      b2109c25
  27. 27 Jan, 2015 1 commit
    • Robbert Krebbers's avatar
      Let the malloc expression non-deterministically yield NULL. · fdcc90dd
      Robbert Krebbers authored
      * This behavior is "implementation defined" and can be turned on and off
        using the Boolean field "alloc_can_fail" of the class "Env".
      * The expression "EAlloc" is now an r-value of pointer type instead of an
        l-value.
      * The executable semantics for expressions is now non-deterministic. Hence,
        some proofs had to be revised.
      fdcc90dd