Inheritance diagram for FPNumRef:

Public Member Functions
	sign (self)
	sign_as_bv (self)
	significand (self)
	significand_as_long (self)
	significand_as_bv (self)
	exponent (self, biased=True)
	exponent_as_long (self, biased=True)
	exponent_as_bv (self, biased=True)
	isNaN (self)
	isInf (self)
	isZero (self)
	isNormal (self)
	isSubnormal (self)
	isPositive (self)
	isNegative (self)
	as_string (self)
	py_value (self)
Public Member Functions inherited from FPRef
	sort (self)
	ebits (self)
	sbits (self)
	__le__ (self, other)
	__lt__ (self, other)
	__ge__ (self, other)
	__gt__ (self, other)
	__add__ (self, other)
	__radd__ (self, other)
	__sub__ (self, other)
	__rsub__ (self, other)
	__mul__ (self, other)
	__rmul__ (self, other)
	__pos__ (self)
	__neg__ (self)
	__div__ (self, other)
	__rdiv__ (self, other)
	__truediv__ (self, other)
	__rtruediv__ (self, other)
	__mod__ (self, other)
	__rmod__ (self, other)
Public Member Functions inherited from ExprRef
	as_ast (self)
	get_id (self)
	sort_kind (self)
	__eq__ (self, other)
	__hash__ (self)
	__ne__ (self, other)
	params (self)
	decl (self)
	kind (self)
	num_args (self)
	arg (self, idx)
	children (self)
	from_string (self, s)
	serialize (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)
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

The sign of the numeral.

>>> x = FPVal(+1.0, FPSort(8, 24))
>>> x.sign()
False
>>> x = FPVal(-1.0, FPSort(8, 24))
>>> x.sign()
True

Definition at line 10030 of file z3py.py.

Member Function Documentation

◆ as_string()

as_string ( self )

Return a Z3 floating point expression as a Python string.

Reimplemented from FPRef.

Definition at line 10161 of file z3py.py.

    def as_string(self):
        s = Z3_get_numeral_string(self.ctx.ref(), self.as_ast())
        return ("FPVal(%s, %s)" % (s, self.sort()))
 

◆ exponent()

exponent	(		self,
			biased = True )

Definition at line 10094 of file z3py.py.

    def exponent(self, biased=True):
        return Z3_fpa_get_numeral_exponent_string(self.ctx.ref(), self.as_ast(), biased)
 

◆ exponent_as_bv()

exponent_as_bv	(		self,
			biased = True )

Definition at line 10115 of file z3py.py.

    def exponent_as_bv(self, biased=True):
        return BitVecNumRef(Z3_fpa_get_numeral_exponent_bv(self.ctx.ref(), self.as_ast(), biased), self.ctx)
 

◆ exponent_as_long()

exponent_as_long	(		self,
			biased = True )

Definition at line 10104 of file z3py.py.

    def exponent_as_long(self, biased=True):
        ptr = (ctypes.c_longlong * 1)()
        if not Z3_fpa_get_numeral_exponent_int64(self.ctx.ref(), self.as_ast(), ptr, biased):
            raise Z3Exception("error retrieving the exponent of a numeral.")
        return ptr[0]
 

◆ isInf()

isInf ( self )

Definition at line 10125 of file z3py.py.

    def isInf(self):
        return Z3_fpa_is_numeral_inf(self.ctx.ref(), self.as_ast())
 

◆ isNaN()

isNaN ( self )

Definition at line 10120 of file z3py.py.

    def isNaN(self):
        return Z3_fpa_is_numeral_nan(self.ctx.ref(), self.as_ast())
 

◆ isNegative()

isNegative ( self )

Definition at line 10150 of file z3py.py.

    def isNegative(self):
        return Z3_fpa_is_numeral_negative(self.ctx.ref(), self.as_ast())
 

◆ isNormal()

isNormal ( self )

Definition at line 10135 of file z3py.py.

    def isNormal(self):
        return Z3_fpa_is_numeral_normal(self.ctx.ref(), self.as_ast())
 

◆ isPositive()

isPositive ( self )

Definition at line 10145 of file z3py.py.

    def isPositive(self):
        return Z3_fpa_is_numeral_positive(self.ctx.ref(), self.as_ast())
 

◆ isSubnormal()

isSubnormal ( self )

Definition at line 10140 of file z3py.py.

    def isSubnormal(self):
        return Z3_fpa_is_numeral_subnormal(self.ctx.ref(), self.as_ast())
 

◆ isZero()

isZero ( self )

Definition at line 10130 of file z3py.py.

    def isZero(self):
        return Z3_fpa_is_numeral_zero(self.ctx.ref(), self.as_ast())
 

◆ py_value()

py_value ( self )

Return a Python value that is equivalent to `self`.

Reimplemented from AstRef.

Definition at line 10165 of file z3py.py.

    def py_value(self):
        bv = simplify(fpToIEEEBV(self))
        binary = bv.py_value()
        if not isinstance(binary, int):
            return None
        # Decode the IEEE 754 binary representation
        import struct
        bytes_rep = binary.to_bytes(8, byteorder='big')
        return struct.unpack('>d', bytes_rep)[0]
 
 

◆ sign()

sign ( self )

Definition at line 10041 of file z3py.py.

    def sign(self):
        num = (ctypes.c_int)()
        nsign = Z3_fpa_get_numeral_sign(self.ctx.ref(), self.as_ast(), byref(num))
        if nsign is False:
            raise Z3Exception("error retrieving the sign of a numeral.")
        return num.value != 0
 

◆ sign_as_bv()

sign_as_bv ( self )

Definition at line 10053 of file z3py.py.

    def sign_as_bv(self):
        return BitVecNumRef(Z3_fpa_get_numeral_sign_bv(self.ctx.ref(), self.as_ast()), self.ctx)
 

◆ significand()

significand ( self )

Definition at line 10063 of file z3py.py.

    def significand(self):
        return Z3_fpa_get_numeral_significand_string(self.ctx.ref(), self.as_ast())
 

◆ significand_as_bv()

significand_as_bv ( self )

Definition at line 10084 of file z3py.py.

    def significand_as_bv(self):
        return BitVecNumRef(Z3_fpa_get_numeral_significand_bv(self.ctx.ref(), self.as_ast()), self.ctx)
 

◆ significand_as_long()

significand_as_long ( self )

Definition at line 10073 of file z3py.py.

    def significand_as_long(self):
        ptr = (ctypes.c_ulonglong * 1)()
        if not Z3_fpa_get_numeral_significand_uint64(self.ctx.ref(), self.as_ast(), ptr):
            raise Z3Exception("error retrieving the significand of a numeral.")
        return ptr[0]
 

Public Member Functions

Additional Inherited Members