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Resolved merge conflicts. Added FPA API input validity checks.

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This commit is contained in:
Christoph M. Wintersteiger 2016-11-15 20:19:40 +00:00
commit 9053e6eba6
10 changed files with 786 additions and 192 deletions
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100
src/api/dotnet/FPNum.cs
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@ -14,7 +14,7 @@ Author:
Christoph Wintersteiger (cwinter) 2013-06-10
Notes:
--*/
using System;
using System.Diagnostics.Contracts;
@ -27,6 +27,20 @@ namespace Microsoft.Z3
[ContractVerification(true)]
public class FPNum : FPExpr
{
/// <summary>
/// The sign of a floating-point numeral as a bit-vector expression
/// </summary>
/// <remarks>
/// NaN's do not have a bit-vector sign, so they are invalid arguments.
/// </remarks>
public BitVecExpr SignBV
{
get
{
return new BitVecExpr(Context, Native.Z3_fpa_get_numeral_sign_bv(Context.nCtx, NativeObject));
}
}
/// <summary>
/// Retrieves the sign of a floating-point literal
/// </summary>
@ -38,7 +52,7 @@ namespace Microsoft.Z3
get
{
int res = 0;
if (Native.Z3_fpa_get_numeral_sign(Context.nCtx, NativeObject, ref res) == 0)
if (Native.Z3_fpa_get_numeral_sign(Context.nCtx, NativeObject, ref res) == 0)
throw new Z3Exception("Sign is not a Boolean value");
return res != 0;
}
@ -63,7 +77,7 @@ namespace Microsoft.Z3
/// The significand value of a floating-point numeral as a UInt64
/// </summary>
/// <remarks>
/// This function extracts the significand bits, without the
/// This function extracts the significand bits, without the
/// hidden bit or normalization. Throws an exception if the
/// significand does not fit into a UInt64.
/// </remarks>
@ -73,36 +87,90 @@ namespace Microsoft.Z3
{
UInt64 result = 0;
if (Native.Z3_fpa_get_numeral_significand_uint64(Context.nCtx, NativeObject, ref result) == 0)
throw new Z3Exception("Significand is not a 64 bit unsigned integer");
throw new Z3Exception("Significand is not a 64 bit unsigned integer");
return result;
}
}
/// <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));
}
/// <summary>
/// Indicates whether the numeral is a NaN.
/// </summary>
public bool IsNaN { get { return Native.Z3_fpa_is_numeral_nan(Context.nCtx, NativeObject) != 0; } }
/// <summary>
/// Indicates whether the numeral is a +oo or -oo.
/// </summary>
public bool IsInf { get { return Native.Z3_fpa_is_numeral_inf(Context.nCtx, NativeObject) != 0; } }
/// <summary>
/// Indicates whether the numeral is +zero or -zero.
/// </summary>
public bool IsZero{ get { return Native.Z3_fpa_is_numeral_zero(Context.nCtx, NativeObject) != 0; } }
/// <summary>
/// Indicates whether the numeral is normal.
/// </summary>
public bool IsNormal { get { return Native.Z3_fpa_is_numeral_normal(Context.nCtx, NativeObject) != 0; } }
/// <summary>
/// Indicates whether the numeral is subnormal.
/// </summary>
public bool IsSubnormal { get { return Native.Z3_fpa_is_numeral_subnormal(Context.nCtx, NativeObject) != 0; } }
/// <summary>
/// Indicates whether the numeral is positive.
/// </summary>
public bool IsPositive { get { return Native.Z3_fpa_is_numeral_positive(Context.nCtx, NativeObject) != 0; } }
/// <summary>
/// Indicates whether the numeral is negative.
/// </summary>
public bool IsNegative { get { return Native.Z3_fpa_is_numeral_negative(Context.nCtx, NativeObject) != 0; } }
#region Internal
internal FPNum(Context ctx, IntPtr obj)
: base(ctx, obj)
@ -113,7 +181,7 @@ namespace Microsoft.Z3
/// <summary>
/// Returns a string representation of the numeral.
/// </summary>
/// </summary>
public override string ToString()
{
return Native.Z3_get_numeral_string(Context.nCtx, NativeObject);