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Added accessors to extract sign/exponent/significand BV numerals from FP numerals.

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This commit is contained in:
Christoph M. Wintersteiger 2016-09-16 16:48:22 +01:00
parent 5716eaafed
commit 6b474adc8a
7 changed files with 246 additions and 5 deletions
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24
src/api/python/z3/z3.py
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@ -8446,6 +8446,30 @@ class FPNumRef(FPRef):
k = self.decl().kind()
return (self.num_args() == 0 and (k == Z3_OP_FPA_MINUS_INF or k == Z3_OP_FPA_MINUS_ZERO)) or (self.sign() == True)
"""
The sign of a floating-point numeral as a bit-vector expression
Remark: NaN's do not have a bit-vector sign, so they are invalid arguments.
"""
def BVSign(self):
return BitVecNumRef(Z3_fpa_get_numeral_sign_bv(self.ctx.ref(), self.as_ast()), ctx)
"""
The exponent of a floating-point numeral as a bit-vector expression
Remark: +oo, -oo and NaN's do not have a bit-vector exponent, so they are invalid arguments.
"""
def BVExponent(self):
return BitVecNumRef(Z3_fpa_get_numeral_exponent_bv(self.ctx.ref(), self.as_ast()), ctx)
"""
The sign of a floating-point numeral as a bit-vector expression
Remark: +oo, -oo and NaN's do not have a bit-vector significand, so they are invalid arguments.
"""
def BVSignificand(self):
return BitVecNumRef(Z3_fpa_get_numeral_significand_bv(self.ctx.ref(), self.as_ast()), ctx)
"""
The sign of the numeral.