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Public Member Functions
BitVecNumRef Class Reference
+ Inheritance diagram for BitVecNumRef:

Public Member Functions

def as_long
def as_signed_long
def as_string

Detailed Description

Bit-vector values.

Definition at line 3351 of file z3py.py.


Member Function Documentation

def as_long (   self)
Return a Z3 bit-vector numeral as a Python long (bignum) numeral. 

>>> v = BitVecVal(0xbadc0de, 32)
>>> v
195936478
>>> print("0x%.8x" % v.as_long())
0x0badc0de

Definition at line 3354 of file z3py.py.

03354 
03355     def as_long(self):
03356         """Return a Z3 bit-vector numeral as a Python long (bignum) numeral. 
03357         
03358         >>> v = BitVecVal(0xbadc0de, 32)
03359         >>> v
03360         195936478
03361         >>> print("0x%.8x" % v.as_long())
03362         0x0badc0de
03363         """
03364         return int(self.as_string())

def as_signed_long (   self)
Return a Z3 bit-vector numeral as a Python long (bignum) numeral. The most significant bit is assumed to be the sign.

>>> BitVecVal(4, 3).as_signed_long()
-4
>>> BitVecVal(7, 3).as_signed_long()
-1
>>> BitVecVal(3, 3).as_signed_long()
3
>>> BitVecVal(2**32 - 1, 32).as_signed_long()
-1
>>> BitVecVal(2**64 - 1, 64).as_signed_long()
-1

Definition at line 3365 of file z3py.py.

03365 
03366     def as_signed_long(self):
03367         """Return a Z3 bit-vector numeral as a Python long (bignum) numeral. The most significant bit is assumed to be the sign.
03368         
03369         >>> BitVecVal(4, 3).as_signed_long()
03370         -4
03371         >>> BitVecVal(7, 3).as_signed_long()
03372         -1
03373         >>> BitVecVal(3, 3).as_signed_long()
03374         3
03375         >>> BitVecVal(2**32 - 1, 32).as_signed_long()
03376         -1
03377         >>> BitVecVal(2**64 - 1, 64).as_signed_long()
03378         -1
03379         """
03380         sz = self.size()
03381         val = self.as_long()
03382         if val >= 2**(sz - 1):
03383             val = val - 2**sz
03384         if val < -2**(sz - 1):
03385             val = val + 2**sz
03386         return int(val)

def as_string (   self)

Definition at line 3387 of file z3py.py.

Referenced by BitVecNumRef.as_long().

03387 
03388     def as_string(self):
03389         return Z3_get_numeral_string(self.ctx_ref(), self.as_ast())

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