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Refactored FPA numeral accessors.

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This commit is contained in:
Christoph M. Wintersteiger 2016-10-21 17:39:31 +01:00
parent 0a11e8f3c0
commit abcb6040d4
6 changed files with 175 additions and 172 deletions
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102
src/api/api_fpa.cpp
View file

@ -946,7 +946,7 @@ extern "C" {
fpa_util & fu = mk_c(c)->fpautil();
api::context * ctx = mk_c(c);
expr * e = to_expr(t);
if (!is_app(e) || is_app_of(e, fid, OP_FPA_NAN) || !fu.is_fp(e)) {
if (!is_app(e) || is_app_of(e, fid, OP_FPA_NAN) || !is_fp(c, t)) {
SET_ERROR_CODE(Z3_INVALID_ARG);
RETURN_Z3(0);
}
@ -956,6 +956,7 @@ extern "C" {
SET_ERROR_CODE(Z3_INVALID_ARG);
return 0;
}
std::cout << "val=" << mpfm.to_string(val) << std::endl;
app * a;
if (mpfm.is_pos(val))
a = ctx->bvutil().mk_numeral(0, 1);
@ -966,44 +967,6 @@ extern "C" {
Z3_CATCH_RETURN(0);
}
Z3_ast Z3_API Z3_fpa_get_numeral_exponent_bv(Z3_context c, Z3_ast t) {
Z3_TRY;
LOG_Z3_fpa_get_numeral_exponent_bv(c, t);
RESET_ERROR_CODE();
CHECK_NON_NULL(t, 0);
CHECK_VALID_AST(t, 0);
ast_manager & m = mk_c(c)->m();
mpf_manager & mpfm = mk_c(c)->fpautil().fm();
unsynch_mpq_manager & mpqm = mpfm.mpq_manager();
family_id fid = mk_c(c)->get_fpa_fid();
fpa_decl_plugin * plugin = (fpa_decl_plugin*)m.get_plugin(fid);
fpa_util & fu = mk_c(c)->fpautil();
expr * e = to_expr(t);
if (!is_app(e) || is_app_of(e, fid, OP_FPA_NAN) || !fu.is_fp(e)) {
SET_ERROR_CODE(Z3_INVALID_ARG);
RETURN_Z3(0);
}
scoped_mpf val(mpfm);
bool r = plugin->is_numeral(e, val);
if (!r || !(mpfm.is_normal(val) || mpfm.is_denormal(val) || mpfm.is_zero(val) || mpfm.is_inf(val))) {
SET_ERROR_CODE(Z3_INVALID_ARG);
RETURN_Z3(0);
}
unsigned ebits = val.get().get_ebits();
mpf_exp_t q = mpfm.exp(val);
mpf_exp_t q_biassed = mpfm.bias_exp(ebits, q);
app * a;
if (mpfm.is_inf(val))
a = mk_c(c)->bvutil().mk_numeral(-1, ebits);
else if (mpfm.is_zero(val) || mpfm.is_denormal(val))
a = mk_c(c)->bvutil().mk_numeral(0, ebits);
else
a = mk_c(c)->bvutil().mk_numeral(q_biassed, ebits);
mk_c(c)->save_ast_trail(a);
RETURN_Z3(of_expr(a));
Z3_CATCH_RETURN(0);
}
Z3_ast Z3_API Z3_fpa_get_numeral_significand_bv(Z3_context c, Z3_ast t) {
Z3_TRY;
LOG_Z3_fpa_get_numeral_significand_bv(c, t);
@ -1018,7 +981,7 @@ extern "C" {
SASSERT(plugin != 0);
fpa_util & fu = mk_c(c)->fpautil();
expr * e = to_expr(t);
if (!is_app(e) || is_app_of(e, fid, OP_FPA_NAN) || !fu.is_fp(e)) {
if (!is_app(e) || is_app_of(e, fid, OP_FPA_NAN) || !is_fp(c, t)) {
SET_ERROR_CODE(Z3_INVALID_ARG);
RETURN_Z3(0);
}
@ -1106,9 +1069,9 @@ extern "C" {
Z3_CATCH_RETURN(0);
}
Z3_string Z3_API Z3_fpa_get_numeral_exponent_string(Z3_context c, Z3_ast t) {
Z3_string Z3_API Z3_fpa_get_numeral_exponent_string(Z3_context c, Z3_ast t, Z3_bool biased) {
Z3_TRY;
LOG_Z3_fpa_get_numeral_exponent_string(c, t);
LOG_Z3_fpa_get_numeral_exponent_string(c, t, biased);
RESET_ERROR_CODE();
ast_manager & m = mk_c(c)->m();
mpf_manager & mpfm = mk_c(c)->fpautil().fm();
@ -1127,19 +1090,21 @@ extern "C" {
SET_ERROR_CODE(Z3_INVALID_ARG);
return "";
}
unsigned ebits = val.get().get_ebits();
mpf_exp_t exp = mpfm.is_zero(val) ? 0 :
mpfm.is_denormal(val) ? mpfm.mk_min_exp(val.get().get_ebits()) :
mpfm.is_inf(val) ? mpfm.mk_top_exp(val.get().get_ebits()) :
mpfm.exp(val);
mpfm.is_denormal(val) ? mpfm.mk_min_exp(ebits) :
mpfm.is_inf(val) ? mpfm.mk_top_exp(ebits) :
mpfm.bias_exp(ebits, mpfm.exp(val));
if (!biased) mpfm.unbias_exp(ebits, exp);
std::stringstream ss;
ss << exp;
return mk_c(c)->mk_external_string(ss.str());
Z3_CATCH_RETURN("");
}
Z3_bool Z3_API Z3_fpa_get_numeral_exponent_int64(Z3_context c, Z3_ast t, __int64 * n) {
Z3_bool Z3_API Z3_fpa_get_numeral_exponent_int64(Z3_context c, Z3_ast t, __int64 * n, Z3_bool biased) {
Z3_TRY;
LOG_Z3_fpa_get_numeral_exponent_int64(c, t, n);
LOG_Z3_fpa_get_numeral_exponent_int64(c, t, n, biased);
RESET_ERROR_CODE();
ast_manager & m = mk_c(c)->m();
mpf_manager & mpfm = mk_c(c)->fpautil().fm();
@ -1160,14 +1125,51 @@ extern "C" {
*n = 0;
return 0;
}
unsigned ebits = val.get().get_ebits();
*n = mpfm.is_zero(val) ? 0 :
mpfm.is_denormal(val) ? mpfm.mk_min_exp(val.get().get_ebits()) :
mpfm.is_inf(val) ? mpfm.mk_top_exp(val.get().get_ebits()) :
mpfm.exp(val);
mpfm.is_denormal(val) ? mpfm.mk_min_exp(ebits) :
mpfm.is_inf(val) ? mpfm.mk_top_exp(ebits) :
mpfm.bias_exp(ebits, mpfm.exp(val));
if (!biased) *n = mpfm.unbias_exp(ebits, *n);
return 1;
Z3_CATCH_RETURN(0);
}
Z3_ast Z3_API Z3_fpa_get_numeral_exponent_bv(Z3_context c, Z3_ast t, Z3_bool biased) {
Z3_TRY;
LOG_Z3_fpa_get_numeral_exponent_bv(c, t, biased);
RESET_ERROR_CODE();
CHECK_NON_NULL(t, 0);
CHECK_VALID_AST(t, 0);
ast_manager & m = mk_c(c)->m();
mpf_manager & mpfm = mk_c(c)->fpautil().fm();
unsynch_mpq_manager & mpqm = mpfm.mpq_manager();
family_id fid = mk_c(c)->get_fpa_fid();
fpa_decl_plugin * plugin = (fpa_decl_plugin*)m.get_plugin(fid);
fpa_util & fu = mk_c(c)->fpautil();
expr * e = to_expr(t);
if (!is_app(e) || is_app_of(e, fid, OP_FPA_NAN) || !is_fp(c, t)) {
SET_ERROR_CODE(Z3_INVALID_ARG);
RETURN_Z3(0);
}
scoped_mpf val(mpfm);
bool r = plugin->is_numeral(e, val);
if (!r || !(mpfm.is_normal(val) || mpfm.is_denormal(val) || mpfm.is_zero(val) || mpfm.is_inf(val))) {
SET_ERROR_CODE(Z3_INVALID_ARG);
RETURN_Z3(0);
}
unsigned ebits = val.get().get_ebits();
mpf_exp_t exp = mpfm.is_zero(val) ? 0 :
mpfm.is_denormal(val) ? mpfm.mk_min_exp(ebits) :
mpfm.is_inf(val) ? mpfm.mk_top_exp(ebits) :
mpfm.bias_exp(ebits, mpfm.exp(val));
if (!biased) exp = mpfm.unbias_exp(ebits, exp);
app * a = mk_c(c)->bvutil().mk_numeral(exp, ebits);
mk_c(c)->save_ast_trail(a);
RETURN_Z3(of_expr(a));
Z3_CATCH_RETURN(0);
}
Z3_ast Z3_API Z3_mk_fpa_to_ieee_bv(Z3_context c, Z3_ast t) {
Z3_TRY;
LOG_Z3_mk_fpa_to_ieee_bv(c, t);

71
src/api/dotnet/FPNum.cs
View file

@ -33,7 +33,7 @@ namespace Microsoft.Z3
/// <remarks>
/// NaN's do not have a bit-vector sign, so they are invalid arguments.
/// </remarks>
public BitVecExpr BVSign
public BitVecExpr SignBV
{
get
{
@ -41,34 +41,6 @@ namespace Microsoft.Z3
}
}
/// <summary>
/// The exponent of a floating-point numeral as a bit-vector expression
/// </summary>
/// <remarks>
/// +oo, -oo and NaN's do not have a bit-vector exponent, so they are invalid arguments.
/// </remarks>
public BitVecExpr BVExponent
{
get
{
return new BitVecExpr(Context, Native.Z3_fpa_get_numeral_exponent_bv(Context.nCtx, NativeObject));
}
}
/// <summary>
/// The significand of a floating-point numeral as a bit-vector expression
/// </summary>
/// <remarks>
/// +oo, -oo and NaN's do not have a bit-vector significand, so they are invalid arguments.
/// </remarks>
public BitVecExpr BVSignificand
{
get
{
return new BitVecExpr(Context, Native.Z3_fpa_get_numeral_significand_bv(Context.nCtx, NativeObject));
}
}
/// <summary>
/// Retrieves the sign of a floating-point literal
/// </summary>
@ -121,28 +93,47 @@ namespace Microsoft.Z3
}
/// <summary>
/// Return the exponent value of a floating-point numeral as a string
/// The significand of a floating-point numeral as a bit-vector expression
/// </summary>
public string Exponent
/// <remarks>
/// +oo, -oo and NaN's do not have a bit-vector significand, so they are invalid arguments.
/// </remarks>
public BitVecExpr SignificandBV
{
get
{
return Native.Z3_fpa_get_numeral_exponent_string(Context.nCtx, NativeObject);
return new BitVecExpr(Context, Native.Z3_fpa_get_numeral_significand_bv(Context.nCtx, NativeObject));
}
}
/// <summary>
/// Return the (biased) exponent value of a floating-point numeral as a string
/// </summary>
public string Exponent(bool biased = true)
{
return Native.Z3_fpa_get_numeral_exponent_string(Context.nCtx, NativeObject, biased ? 1 : 0);
}
/// <summary>
/// Return the exponent value of a floating-point numeral as a signed 64-bit integer
/// </summary>
public Int64 ExponentInt64
public Int64 ExponentInt64(bool biased = true)
{
get
{
Int64 result = 0;
if (Native.Z3_fpa_get_numeral_exponent_int64(Context.nCtx, NativeObject, ref result) == 0)
throw new Z3Exception("Exponent is not a 64 bit integer");
return result;
}
Int64 result = 0;
if (Native.Z3_fpa_get_numeral_exponent_int64(Context.nCtx, NativeObject, ref result, biased ? 1 : 0) == 0)
throw new Z3Exception("Exponent is not a 64 bit integer");
return result;
}
/// <summary>
/// The exponent of a floating-point numeral as a bit-vector expression
/// </summary>
/// <remarks>
/// +oo, -oo and NaN's do not have a bit-vector exponent, so they are invalid arguments.
/// </remarks>
public BitVecExpr ExponentBV(bool biased = true)
{
return new BitVecExpr(Context, Native.Z3_fpa_get_numeral_exponent_bv(Context.nCtx, NativeObject, biased ? 1 : 0));
}
#region Internal

66
src/api/java/FPNum.java
View file

@ -20,34 +20,7 @@ package com.microsoft.z3;
* FloatingPoint Numerals
*/
public class FPNum extends FPExpr
{
/**
* The sign of a floating-point numeral as a bit-vector expression
* Remarks: NaN's do not have a bit-vector sign, so they are invalid arguments.
* @throws Z3Exception
*/
public BitVecExpr getBVSign() {
return new BitVecExpr(getContext(), Native.fpaGetNumeralSignBv(getContext().nCtx(), getNativeObject()));
}
/**
* The exponent of a floating-point numeral as a bit-vector expression
* Remarks: +oo, -oo, and NaN's do not have a bit-vector exponent, so they are invalid arguments.
* @throws Z3Exception
*/
public BitVecExpr getBVExponent() {
return new BitVecExpr(getContext(), Native.fpaGetNumeralExponentBv(getContext().nCtx(), getNativeObject()));
}
/**
* The significand of a floating-point numeral as a bit-vector expression
* Remarks: +oo, -oo, and NaN's do not have a bit-vector significand, so they are invalid arguments.
* @throws Z3Exception
*/
public BitVecExpr getBVSignificand() {
return new BitVecExpr(getContext(), Native.fpaGetNumeralSignificandBv(getContext().nCtx(), getNativeObject()));
}
{
/**
* Retrieves the sign of a floating-point literal
* Remarks: returns true if the numeral is negative
@ -60,6 +33,15 @@ public class FPNum extends FPExpr
return res.value != 0;
}
/**
* The sign of a floating-point numeral as a bit-vector expression
* Remarks: NaN's do not have a bit-vector sign, so they are invalid arguments.
* @throws Z3Exception
*/
public BitVecExpr getSignBV() {
return new BitVecExpr(getContext(), Native.fpaGetNumeralSignBv(getContext().nCtx(), getNativeObject()));
}
/**
* The significand value of a floating-point numeral as a string
* Remarks: The significand s is always 0 &lt; s &lt; 2.0; the resulting string is long
@ -84,25 +66,45 @@ public class FPNum extends FPExpr
throw new Z3Exception("Significand is not a 64 bit unsigned integer");
return res.value;
}
/**
* The significand of a floating-point numeral as a bit-vector expression
* Remarks: NaN is an invalid argument.
* @throws Z3Exception
*/
public BitVecExpr getSignificandBV() {
return new BitVecExpr(getContext(), Native.fpaGetNumeralSignificandBv(getContext().nCtx(), getNativeObject()));
}
/**
* Return the exponent value of a floating-point numeral as a string
* Remarks: NaN is an invalid argument.
* @throws Z3Exception
*/
public String getExponent() {
return Native.fpaGetNumeralExponentString(getContext().nCtx(), getNativeObject());
public String getExponent(boolean biased) {
return Native.fpaGetNumeralExponentString(getContext().nCtx(), getNativeObject(), biased);
}
/**
* Return the exponent value of a floating-point numeral as a signed 64-bit integer
* Remarks: NaN is an invalid argument.
* @throws Z3Exception
*/
public long getExponentInt64() {
public long getExponentInt64(boolean biased) {
Native.LongPtr res = new Native.LongPtr();
if (!Native.fpaGetNumeralExponentInt64(getContext().nCtx(), getNativeObject(), res))
if (!Native.fpaGetNumeralExponentInt64(getContext().nCtx(), getNativeObject(), res, biased))
throw new Z3Exception("Exponent is not a 64 bit integer");
return res.value;
}
/**
* The exponent of a floating-point numeral as a bit-vector expression
* Remarks: NaN is an invalid argument.
* @throws Z3Exception
*/
public BitVecExpr getExponentBV(boolean biased) {
return new BitVecExpr(getContext(), Native.fpaGetNumeralExponentBv(getContext().nCtx(), getNativeObject(), biased));
}
public FPNum(Context ctx, long obj)
{

60
src/api/python/z3/z3.py
View file

@ -8445,31 +8445,7 @@ class FPNumRef(FPRef):
def isNegative(self):
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.
@ -8486,6 +8462,15 @@ class FPNumRef(FPRef):
raise Z3Exception("error retrieving the sign of a numeral.")
return l.value != 0
"""
The sign of a floating-point numeral as a bit-vector expression
Remark: NaN's are invalid arguments.
"""
def sign_as_bv(self):
return BitVecNumRef(Z3_fpa_get_numeral_sign_bv(self.ctx.ref(), self.as_ast()), self.ctx)
"""
The significand of the numeral.
@ -8495,6 +8480,14 @@ class FPNumRef(FPRef):
"""
def significand(self):
return Z3_fpa_get_numeral_significand_string(self.ctx.ref(), self.as_ast())
"""
The significand of a floating-point numeral as a bit-vector expression
Remark: NaN are invalid arguments.
"""
def significand_as_bv(self):
return BitVecNumRef(Z3_fpa_get_numeral_significand_bv(self.ctx.ref(), self.as_ast()), self.ctx)
"""
The exponent of the numeral.
@ -8503,8 +8496,8 @@ class FPNumRef(FPRef):
>>> x.exponent()
1
"""
def exponent(self):
return Z3_fpa_get_numeral_exponent_string(self.ctx.ref(), self.as_ast())
def exponent(self, biased=True):
return Z3_fpa_get_numeral_exponent_string(self.ctx.ref(), self.as_ast(), biased)
"""
The exponent of the numeral as a long.
@ -8513,12 +8506,21 @@ class FPNumRef(FPRef):
>>> x.exponent_as_long()
1
"""
def exponent_as_long(self):
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):
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]
"""
The exponent of a floating-point numeral as a bit-vector expression
Remark: NaNs are invalid arguments.
"""
def exponent_as_bv(self, biased=True):
return BitVecNumRef(Z3_fpa_get_numeral_exponent_bv(self.ctx.ref(), self.as_ast(), biased), self.ctx)
"""
The string representation of the numeral.
@ -8527,7 +8529,7 @@ class FPNumRef(FPRef):
1.25*(2**4)
"""
def as_string(self):
s = Z3_fpa_get_numeral_string(self.ctx.ref(), self.as_ast())
s = Z3_get_numeral_string(self.ctx.ref(), self.as_ast())
return ("FPVal(%s, %s)" % (s, self.sort()))
def is_fp(a):

4
src/api/python/z3/z3printer.py
View file

@ -620,8 +620,8 @@ class Formatter:
r = []
sgn = c_int(0)
sgnb = Z3_fpa_get_numeral_sign(a.ctx_ref(), a.ast, byref(sgn))
exp = Z3_fpa_get_numeral_exponent_string(a.ctx_ref(), a.ast, False)
sig = Z3_fpa_get_numeral_significand_string(a.ctx_ref(), a.ast)
exp = Z3_fpa_get_numeral_exponent_string(a.ctx_ref(), a.ast)
r.append(to_format('FPVal('))
if sgnb and sgn.value != 0:
r.append(to_format('-'))
@ -650,8 +650,8 @@ class Formatter:
r = []
sgn = (ctypes.c_int)(0)
sgnb = Z3_fpa_get_numeral_sign(a.ctx_ref(), a.ast, byref(sgn))
exp = Z3_fpa_get_numeral_exponent_string(a.ctx_ref(), a.ast, False)
sig = Z3_fpa_get_numeral_significand_string(a.ctx_ref(), a.ast)
exp = Z3_fpa_get_numeral_exponent_string(a.ctx_ref(), a.ast)
if sgnb and sgn.value != 0:
r.append(to_format('-'))
r.append(to_format(sig))

44
src/api/z3_fpa.h
View file

@ -900,24 +900,12 @@ extern "C" {
\param c logical context
\param t a floating-point numeral
Remarks: +oo, -oo and NaN are invalid arguments.
Remarks: NaN is an invalid argument.
def_API('Z3_fpa_get_numeral_significand_bv', AST, (_in(CONTEXT), _in(AST)))
*/
Z3_ast Z3_API Z3_fpa_get_numeral_significand_bv(Z3_context c, Z3_ast t);
/**
\brief Retrieves the exponent of a floating-point literal as a bit-vector expression.
\param c logical context
\param t a floating-point numeral
Remarks: +oo, -oo and NaN are invalid arguments.
def_API('Z3_fpa_get_numeral_exponent_bv', AST, (_in(CONTEXT), _in(AST)))
*/
Z3_ast Z3_API Z3_fpa_get_numeral_exponent_bv(Z3_context c, Z3_ast t);
/**
\brief Retrieves the sign of a floating-point literal.
@ -954,23 +942,25 @@ extern "C" {
Remarks: This function extracts the significand bits in `t`, without the
hidden bit or normalization. Sets the Z3_INVALID_ARG error code if the
significand does not fit into a uint64.
significand does not fit into a uint64. NaN is an invalid argument.
def_API('Z3_fpa_get_numeral_significand_uint64', BOOL, (_in(CONTEXT), _in(AST), _out(UINT64)))
*/
Z3_bool Z3_API Z3_fpa_get_numeral_significand_uint64(Z3_context c, Z3_ast t, __uint64 * n);
/**
\brief Return the exponent value of a floating-point numeral as a string
\brief Return the exponent value of a floating-point numeral as a string.
\param c logical context
\param t a floating-point numeral
\param biased flag to indicate whether the result is in biased representation
Remarks: This function extracts the exponent in `t`, without normalization.
NaN is an invalid argument.
def_API('Z3_fpa_get_numeral_exponent_string', STRING, (_in(CONTEXT), _in(AST)))
def_API('Z3_fpa_get_numeral_exponent_string', STRING, (_in(CONTEXT), _in(AST), _in(BOOL)))
*/
Z3_string Z3_API Z3_fpa_get_numeral_exponent_string(Z3_context c, Z3_ast t);
Z3_string Z3_API Z3_fpa_get_numeral_exponent_string(Z3_context c, Z3_ast t, Z3_bool biased);
/**
\brief Return the exponent value of a floating-point numeral as a signed 64-bit integer
@ -978,12 +968,28 @@ extern "C" {
\param c logical context
\param t a floating-point numeral
\param n exponent
\param biased flag to indicate whether the result is in biased representation
Remarks: This function extracts the exponent in `t`, without normalization.
NaN is an invalid argument.
def_API('Z3_fpa_get_numeral_exponent_int64', BOOL, (_in(CONTEXT), _in(AST), _out(INT64)))
def_API('Z3_fpa_get_numeral_exponent_int64', BOOL, (_in(CONTEXT), _in(AST), _out(INT64), _in(BOOL)))
*/
Z3_bool Z3_API Z3_fpa_get_numeral_exponent_int64(Z3_context c, Z3_ast t, __int64 * n);
Z3_bool Z3_API Z3_fpa_get_numeral_exponent_int64(Z3_context c, Z3_ast t, __int64 * n, Z3_bool biased);
/**
\brief Retrieves the exponent of a floating-point literal as a bit-vector expression.
\param c logical context
\param t a floating-point numeral
\param biased flag to indicate whether the result is in biased representation
Remarks: This function extracts the exponent in `t`, without normalization.
NaN is an invalid arguments.
def_API('Z3_fpa_get_numeral_exponent_bv', AST, (_in(CONTEXT), _in(AST), _in(BOOL)))
*/
Z3_ast Z3_API Z3_fpa_get_numeral_exponent_bv(Z3_context c, Z3_ast t, Z3_bool biased);
/**
\brief Conversion of a floating-point term into a bit-vector term in IEEE 754-2008 format.