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add shorthand for enumerating constants in a model

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-06-02 10:35:09 -07:00
parent 2908ab4069
commit efd5727676
2 changed files with 19 additions and 1 deletions
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19
src/api/dotnet/Model.cs
View file

@ -19,6 +19,7 @@ Notes:
using System;
using System.Diagnostics.Contracts;
using System.Collections.Generic;
namespace Microsoft.Z3
{
@ -131,6 +132,24 @@ namespace Microsoft.Z3
}
}
/// <summary>
/// Enumerate constants in model.
/// </summary>
public IEnumerable<KeyValuePair<FuncDecl, Expr>> Consts
{
get
{
uint nc = NumConsts;
for (uint i = 0; i < nc; ++i)
{
var f = new FuncDecl(Context, Native.Z3_model_get_const_decl(Context.nCtx, NativeObject, i));
IntPtr n = Native.Z3_model_get_const_interp(Context.nCtx, NativeObject, f.NativeObject);
if (n == IntPtr.Zero) continue;
yield return new KeyValuePair<FuncDecl, Expr>(f, Expr.Create(Context, n));
}
}
}
/// <summary>
/// The number of function interpretations in the model.
/// </summary>

1
src/sat/sat_solver/inc_sat_solver.cpp
View file

@ -326,7 +326,6 @@ public:
return l_true;
}
virtual std::string reason_unknown() const {
return m_unknown;
}