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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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66
src/api/java/FPNum.java
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@ -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 < s < 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)
{