ArithSortRef Class Reference

Arithmetic. More...

Inheritance diagram for ArithSortRef:

Public Member Functions
	is_real (self)
	is_int (self)
	is_bool (self)
	subsort (self, other)
	cast (self, val)
Public Member Functions inherited from SortRef
	as_ast (self)
	get_id (self)
	kind (self)
	name (self)
	__eq__ (self, other)
	__ne__ (self, other)
	__gt__ (self, other)
	__hash__ (self)
Public Member Functions inherited from AstRef
	__init__ (self, ast, ctx=None)
	__del__ (self)
	__deepcopy__ (self, memo={})
	__str__ (self)
	__repr__ (self)
	__eq__ (self, other)
	__hash__ (self)
	__nonzero__ (self)
	__bool__ (self)
	sexpr (self)
	ctx_ref (self)
	eq (self, other)
	translate (self, target)
	__copy__ (self)
	hash (self)
	py_value (self)
Public Member Functions inherited from Z3PPObject
	use_pp (self)

Additional Inherited Members
Data Fields inherited from AstRef
	ast = ast
	ctx = _get_ctx(ctx)
Protected Member Functions inherited from Z3PPObject
	_repr_html_ (self)

Detailed Description

Arithmetic.

Real and Integer sorts.

Definition at line 2441 of file z3py.py.

Member Function Documentation

cast()

cast	(		self,
			val )

Try to cast `val` as an Integer or Real.

>>> IntSort().cast(10)
10
>>> is_int(IntSort().cast(10))
True
>>> is_int(10)
False
>>> RealSort().cast(10)
10
>>> is_real(RealSort().cast(10))
True

Reimplemented from SortRef.

Definition at line 2479 of file z3py.py.

    def cast(self, val):
        """Try to cast `val` as an Integer or Real.
 
        >>> IntSort().cast(10)
        10
        >>> is_int(IntSort().cast(10))
        True
        >>> is_int(10)
        False
        >>> RealSort().cast(10)
        10
        >>> is_real(RealSort().cast(10))
        True
        """
        if is_expr(val):
            if z3_debug():
                _z3_assert(self.ctx == val.ctx, "Context mismatch")
            val_s = val.sort()
            if self.eq(val_s):
                return val
            if val_s.is_int() and self.is_real():
                return ToReal(val)
            if val_s.is_bool() and self.is_int():
                return If(val, 1, 0)
            if val_s.is_bool() and self.is_real():
                return ToReal(If(val, 1, 0))
            if z3_debug():
                _z3_assert(False, "Z3 Integer/Real expression expected")
        else:
            if self.is_int():
                return IntVal(val, self.ctx)
            if self.is_real():
                return RealVal(val, self.ctx)
            if z3_debug():
                msg = "int, long, float, string (numeral), or Z3 Integer/Real expression expected. Got %s"
                _z3_assert(False, msg % self)
 
 

is_bool()

is_bool

(

self

)

Definition at line 2472 of file z3py.py.

    def is_bool(self):
        return False
 

is_int()

is_int

(

self

)

Return `True` if `self` is of the sort Integer.

>>> x = Int('x')
>>> x.is_int()
True
>>> (x + 1).is_int()
True
>>> x = Real('x')
>>> x.is_int()
False

Definition at line 2458 of file z3py.py.

    def is_int(self):
        """Return `True` if `self` is of the sort Integer.
 
        >>> x = Int('x')
        >>> x.is_int()
        True
        >>> (x + 1).is_int()
        True
        >>> x = Real('x')
        >>> x.is_int()
        False
        """
        return self.kind() == Z3_INT_SORT
 

Referenced by IntNumRef.as_long(), and subsort().

is_real()

is_real

(

self

)

Return `True` if `self` is of the sort Real.

>>> x = Real('x')
>>> x.is_real()
True
>>> (x + 1).is_real()
True
>>> x = Int('x')
>>> x.is_real()
False

Definition at line 2444 of file z3py.py.

    def is_real(self):
        """Return `True` if `self` is of the sort Real.
 
        >>> x = Real('x')
        >>> x.is_real()
        True
        >>> (x + 1).is_real()
        True
        >>> x = Int('x')
        >>> x.is_real()
        False
        """
        return self.kind() == Z3_REAL_SORT
 

subsort()

subsort	(		self,
			other )

Return `True` if `self` is a subsort of `other`.

Reimplemented from SortRef.

Definition at line 2475 of file z3py.py.

    def subsort(self, other):
        """Return `True` if `self` is a subsort of `other`."""
        return self.is_int() and is_arith_sort(other) and other.is_real()