Z3
Public Member Functions
FPNumRef Class Reference
+ Inheritance diagram for FPNumRef:

Public Member Functions

def sign (self)
 
def sign_as_bv (self)
 
def significand (self)
 
def significand_as_long (self)
 
def significand_as_bv (self)
 
def exponent
 
def exponent_as_long
 
def exponent_as_bv
 
def isNaN (self)
 
def isInf (self)
 
def isZero (self)
 
def isNormal (self)
 
def isSubnormal (self)
 
def isPositive (self)
 
def isNegative (self)
 
def as_string (self)
 
- Public Member Functions inherited from FPRef
def sort (self)
 
def ebits (self)
 
def sbits (self)
 
def as_string (self)
 
def __le__ (self, other)
 
def __lt__ (self, other)
 
def __ge__ (self, other)
 
def __gt__ (self, other)
 
def __add__ (self, other)
 
def __radd__ (self, other)
 
def __sub__ (self, other)
 
def __rsub__ (self, other)
 
def __mul__ (self, other)
 
def __rmul__ (self, other)
 
def __pos__ (self)
 
def __neg__ (self)
 
def __div__ (self, other)
 
def __rdiv__ (self, other)
 
def __truediv__ (self, other)
 
def __rtruediv__ (self, other)
 
def __mod__ (self, other)
 
def __rmod__ (self, other)
 
- Public Member Functions inherited from ExprRef
def as_ast (self)
 
def get_id (self)
 
def sort (self)
 
def sort_kind (self)
 
def __eq__ (self, other)
 
def __hash__ (self)
 
def __ne__ (self, other)
 
def params (self)
 
def decl (self)
 
def num_args (self)
 
def arg (self, idx)
 
def children (self)
 
def from_string (self, s)
 
def serialize (self)
 
- Public Member Functions inherited from AstRef
def __init__
 
def __del__ (self)
 
def __deepcopy__
 
def __str__ (self)
 
def __repr__ (self)
 
def __eq__ (self, other)
 
def __hash__ (self)
 
def __nonzero__ (self)
 
def __bool__ (self)
 
def sexpr (self)
 
def as_ast (self)
 
def get_id (self)
 
def ctx_ref (self)
 
def eq (self, other)
 
def translate (self, target)
 
def __copy__ (self)
 
def hash (self)
 
- Public Member Functions inherited from Z3PPObject
def use_pp (self)
 

Additional Inherited Members

- Data Fields inherited from AstRef
 ast
 
 ctx
 

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 9852 of file z3py.py.

Member Function Documentation

def as_string (   self)

Definition at line 9983 of file z3py.py.

9983  def as_string(self):
9984  s = Z3_get_numeral_string(self.ctx.ref(), self.as_ast())
9985  return ("FPVal(%s, %s)" % (s, self.sort()))
9986 
9987 
def as_ast(self)
Definition: z3py.py:392
def sort(self)
Definition: z3py.py:996
Z3_string Z3_API Z3_get_numeral_string(Z3_context c, Z3_ast a)
Return numeral value, as a decimal string of a numeric constant term.
def as_string(self)
Definition: z3py.py:9983
def exponent (   self,
  biased = True 
)

Definition at line 9916 of file z3py.py.

9916  def exponent(self, biased=True):
9917  return Z3_fpa_get_numeral_exponent_string(self.ctx.ref(), self.as_ast(), biased)
9918 
def as_ast(self)
Definition: z3py.py:392
def exponent
Definition: z3py.py:9916
Z3_string Z3_API Z3_fpa_get_numeral_exponent_string(Z3_context c, Z3_ast t, bool biased)
Return the exponent value of a floating-point numeral as a string.
def exponent_as_bv (   self,
  biased = True 
)

Definition at line 9937 of file z3py.py.

9937  def exponent_as_bv(self, biased=True):
9938  return BitVecNumRef(Z3_fpa_get_numeral_exponent_bv(self.ctx.ref(), self.as_ast(), biased), self.ctx)
9939 
def exponent_as_bv
Definition: z3py.py:9937
def as_ast(self)
Definition: z3py.py:392
Z3_ast Z3_API Z3_fpa_get_numeral_exponent_bv(Z3_context c, Z3_ast t, bool biased)
Retrieves the exponent of a floating-point literal as a bit-vector expression.
def exponent_as_long (   self,
  biased = True 
)

Definition at line 9926 of file z3py.py.

9926  def exponent_as_long(self, biased=True):
9927  ptr = (ctypes.c_longlong * 1)()
9928  if not Z3_fpa_get_numeral_exponent_int64(self.ctx.ref(), self.as_ast(), ptr, biased):
9929  raise Z3Exception("error retrieving the exponent of a numeral.")
9930  return ptr[0]
9931 
def as_ast(self)
Definition: z3py.py:392
bool Z3_API Z3_fpa_get_numeral_exponent_int64(Z3_context c, Z3_ast t, int64_t *n, bool biased)
Return the exponent value of a floating-point numeral as a signed 64-bit integer. ...
def exponent_as_long
Definition: z3py.py:9926
def isInf (   self)

Definition at line 9947 of file z3py.py.

9947  def isInf(self):
9948  return Z3_fpa_is_numeral_inf(self.ctx.ref(), self.as_ast())
9949 
def isInf(self)
Definition: z3py.py:9947
def as_ast(self)
Definition: z3py.py:392
bool Z3_API Z3_fpa_is_numeral_inf(Z3_context c, Z3_ast t)
Checks whether a given floating-point numeral is a +oo or -oo.
def isNaN (   self)

Definition at line 9942 of file z3py.py.

9942  def isNaN(self):
9943  return Z3_fpa_is_numeral_nan(self.ctx.ref(), self.as_ast())
9944 
def isNaN(self)
Definition: z3py.py:9942
def as_ast(self)
Definition: z3py.py:392
bool Z3_API Z3_fpa_is_numeral_nan(Z3_context c, Z3_ast t)
Checks whether a given floating-point numeral is a NaN.
def isNegative (   self)

Definition at line 9972 of file z3py.py.

9972  def isNegative(self):
9973  return Z3_fpa_is_numeral_negative(self.ctx.ref(), self.as_ast())
9974 
def as_ast(self)
Definition: z3py.py:392
def isNegative(self)
Definition: z3py.py:9972
bool Z3_API Z3_fpa_is_numeral_negative(Z3_context c, Z3_ast t)
Checks whether a given floating-point numeral is negative.
def isNormal (   self)

Definition at line 9957 of file z3py.py.

9957  def isNormal(self):
9958  return Z3_fpa_is_numeral_normal(self.ctx.ref(), self.as_ast())
9959 
def as_ast(self)
Definition: z3py.py:392
bool Z3_API Z3_fpa_is_numeral_normal(Z3_context c, Z3_ast t)
Checks whether a given floating-point numeral is normal.
def isNormal(self)
Definition: z3py.py:9957
def isPositive (   self)

Definition at line 9967 of file z3py.py.

9967  def isPositive(self):
9968  return Z3_fpa_is_numeral_positive(self.ctx.ref(), self.as_ast())
9969 
def as_ast(self)
Definition: z3py.py:392
def isPositive(self)
Definition: z3py.py:9967
bool Z3_API Z3_fpa_is_numeral_positive(Z3_context c, Z3_ast t)
Checks whether a given floating-point numeral is positive.
def isSubnormal (   self)

Definition at line 9962 of file z3py.py.

9962  def isSubnormal(self):
9963  return Z3_fpa_is_numeral_subnormal(self.ctx.ref(), self.as_ast())
9964 
def as_ast(self)
Definition: z3py.py:392
bool Z3_API Z3_fpa_is_numeral_subnormal(Z3_context c, Z3_ast t)
Checks whether a given floating-point numeral is subnormal.
def isSubnormal(self)
Definition: z3py.py:9962
def isZero (   self)

Definition at line 9952 of file z3py.py.

9952  def isZero(self):
9953  return Z3_fpa_is_numeral_zero(self.ctx.ref(), self.as_ast())
9954 
def as_ast(self)
Definition: z3py.py:392
def isZero(self)
Definition: z3py.py:9952
bool Z3_API Z3_fpa_is_numeral_zero(Z3_context c, Z3_ast t)
Checks whether a given floating-point numeral is +zero or -zero.
def sign (   self)

Definition at line 9863 of file z3py.py.

9863  def sign(self):
9864  num = (ctypes.c_int)()
9865  nsign = Z3_fpa_get_numeral_sign(self.ctx.ref(), self.as_ast(), byref(num))
9866  if nsign is False:
9867  raise Z3Exception("error retrieving the sign of a numeral.")
9868  return num.value != 0
9869 
def as_ast(self)
Definition: z3py.py:392
bool Z3_API Z3_fpa_get_numeral_sign(Z3_context c, Z3_ast t, int *sgn)
Retrieves the sign of a floating-point literal.
def sign(self)
Definition: z3py.py:9863
def sign_as_bv (   self)

Definition at line 9875 of file z3py.py.

9875  def sign_as_bv(self):
9876  return BitVecNumRef(Z3_fpa_get_numeral_sign_bv(self.ctx.ref(), self.as_ast()), self.ctx)
9877 
def sign_as_bv(self)
Definition: z3py.py:9875
def as_ast(self)
Definition: z3py.py:392
Z3_ast Z3_API Z3_fpa_get_numeral_sign_bv(Z3_context c, Z3_ast t)
Retrieves the sign of a floating-point literal as a bit-vector expression.
def significand (   self)

Definition at line 9885 of file z3py.py.

9885  def significand(self):
9886  return Z3_fpa_get_numeral_significand_string(self.ctx.ref(), self.as_ast())
9887 
def as_ast(self)
Definition: z3py.py:392
Z3_string Z3_API Z3_fpa_get_numeral_significand_string(Z3_context c, Z3_ast t)
Return the significand value of a floating-point numeral as a string.
def significand(self)
Definition: z3py.py:9885
def significand_as_bv (   self)

Definition at line 9906 of file z3py.py.

9907  return BitVecNumRef(Z3_fpa_get_numeral_significand_bv(self.ctx.ref(), self.as_ast()), self.ctx)
9908 
def as_ast(self)
Definition: z3py.py:392
def significand_as_bv(self)
Definition: z3py.py:9906
Z3_ast Z3_API Z3_fpa_get_numeral_significand_bv(Z3_context c, Z3_ast t)
Retrieves the significand of a floating-point literal as a bit-vector expression. ...
def significand_as_long (   self)

Definition at line 9895 of file z3py.py.

9896  ptr = (ctypes.c_ulonglong * 1)()
9897  if not Z3_fpa_get_numeral_significand_uint64(self.ctx.ref(), self.as_ast(), ptr):
9898  raise Z3Exception("error retrieving the significand of a numeral.")
9899  return ptr[0]
9900 
def significand_as_long(self)
Definition: z3py.py:9895
def as_ast(self)
Definition: z3py.py:392
bool Z3_API Z3_fpa_get_numeral_significand_uint64(Z3_context c, Z3_ast t, uint64_t *n)
Return the significand value of a floating-point numeral as a uint64.