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authorGravatar Unknown <leino@LEINO6.redmond.corp.microsoft.com>2012-06-21 19:16:05 -0700
committerGravatar Unknown <leino@LEINO6.redmond.corp.microsoft.com>2012-06-21 19:16:05 -0700
commit7c6cfaa37c96349fda99823c6f98a576dba194b4 (patch)
tree0305efde49467759af3cce939c9a1ce70ad0cd61 /Test/dafny1/UltraFilter.dfy
parent1ba9b5fab7fff5c30be347e84ff3cf348ec9857d (diff)
Dafny: Since it's no longer true that all types support equality at run-time (in particular, codatatypes), Dafny needs to check this. In these changes, Dafny supports the "(==)" suffix to type parameters, infers that suffix in some cases, and enforces equality support in many places. Refinement and datatypes still need more attention in the Dafny implementation.
Diffstat (limited to 'Test/dafny1/UltraFilter.dfy')
-rw-r--r--Test/dafny1/UltraFilter.dfy2
1 files changed, 1 insertions, 1 deletions
diff --git a/Test/dafny1/UltraFilter.dfy b/Test/dafny1/UltraFilter.dfy
index c8419890..c78d5e81 100644
--- a/Test/dafny1/UltraFilter.dfy
+++ b/Test/dafny1/UltraFilter.dfy
@@ -1,6 +1,6 @@
// ultra filter
-class UltraFilter<G> {
+class UltraFilter<G(==)> {
static function IsFilter(f: set<set<G>>, S: set<G>): bool
{
(forall A, B :: A in f && A <= B ==> B in f) &&