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fix #2123

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-02-03 19:54:08 +01:00
parent 0acc042bf7
commit 9cf99e26a6
1 changed files with 7 additions and 3 deletions
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10
src/api/python/z3/z3.py
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@ -4490,11 +4490,15 @@ def K(dom, v):
return ArrayRef(Z3_mk_const_array(ctx.ref(), dom.ast, v.as_ast()), ctx) return ArrayRef(Z3_mk_const_array(ctx.ref(), dom.ast, v.as_ast()), ctx)
def Ext(a, b): def Ext(a, b):
"""Return extensionality index for arrays. """Return extensionality index for one-dimensional arrays.
>> a, b = Consts('a b', SetSort(IntSort()))
>> Ext(a, b)
Ext(a, b)
""" """
ctx = a.ctx
if __debug__: if __debug__:
_z3_assert(is_array(a) and is_array(b)) _z3_assert(is_array(a) and is_array(b), "arguments must be arrays")
return _to_expr_ref(Z3_mk_array_ext(ctx.ref(), a.as_ast(), b.as_ast())); return _to_expr_ref(Z3_mk_array_ext(ctx.ref(), a.as_ast(), b.as_ast()), ctx)
def is_select(a): def is_select(a):
"""Return `True` if `a` is a Z3 array select application. """Return `True` if `a` is a Z3 array select application.