diff options
-rw-r--r-- | src/Util/ZRange/Operations.v | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/Util/ZRange/Operations.v b/src/Util/ZRange/Operations.v index 8f597eced..efb0dc9c8 100644 --- a/src/Util/ZRange/Operations.v +++ b/src/Util/ZRange/Operations.v @@ -16,6 +16,11 @@ Module ZRange. let (ly, uy) := eta y in r[ Z.min lx ly ~> Z.max ux uy ]. + Definition intersection (x y : zrange) : zrange + := let (lx, ux) := eta x in + let (ly, uy) := eta y in + r[ Z.max lx ly ~> Z.min ux uy ]. + Definition normalize (v : zrange) : zrange := r[ Z.min (lower v) (upper v) ~> Z.max (upper v) (lower v) ]. |