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Christoph M. Wintersteiger 2015-05-19 12:43:25 +01:00
parent f0b699f03a
commit a41a9c94dd
1 changed files with 49 additions and 49 deletions
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98
src/api/dotnet/Optimize.cs
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@ -85,43 +85,43 @@ namespace Microsoft.Z3
Assert(constraints);
}
/// <summary>
/// Handle to objectives returned by objective functions.
/// </summary>
public class Handle
/// <summary>
/// Handle to objectives returned by objective functions.
/// </summary>
public class Handle
{
Optimize opt;
uint handle;
internal Handle(Optimize opt, uint h)
{
this.opt = opt;
this.handle = h;
}
Optimize opt;
uint handle;
internal Handle(Optimize opt, uint h)
{
this.opt = opt;
this.handle = h;
}
/// <summary>
/// Retrieve a lower bound for the objective handle.
/// </summary>
public ArithExpr Lower
{
get { return opt.GetLower(handle); }
}
public ArithExpr Lower
{
get { return opt.GetLower(handle); }
}
/// <summary>
/// Retrieve an upper bound for the objective handle.
/// </summary>
public ArithExpr Upper
{
get { return opt.GetUpper(handle); }
}
public ArithExpr Upper
{
get { return opt.GetUpper(handle); }
}
/// <summary>
/// Retrieve the value of an objective.
/// </summary>
public ArithExpr Value
{
get { return Lower; }
}
}
public ArithExpr Value
{
get { return Lower; }
}
}
/// <summary>
/// Assert soft constraint
@ -132,29 +132,29 @@ namespace Microsoft.Z3
public Handle AssertSoft(BoolExpr constraint, uint weight, string group)
{
Context.CheckContextMatch(constraint);
Symbol s = Context.MkSymbol(group);
return new Handle(this, Native.Z3_optimize_assert_soft(Context.nCtx, NativeObject, constraint.NativeObject, weight.ToString(), s.NativeObject));
Symbol s = Context.MkSymbol(group);
return new Handle(this, Native.Z3_optimize_assert_soft(Context.nCtx, NativeObject, constraint.NativeObject, weight.ToString(), s.NativeObject));
}
///
/// <summary>
/// Check satisfiability of asserted constraints.
/// Produce a model that (when the objectives are bounded and
/// don't use strict inequalities) meets the objectives.
/// </summary>
///
public Status Check() {
Z3_lbool r = (Z3_lbool)Native.Z3_optimize_check(Context.nCtx, NativeObject);
/// <summary>
/// Check satisfiability of asserted constraints.
/// Produce a model that (when the objectives are bounded and
/// don't use strict inequalities) meets the objectives.
/// </summary>
///
public Status Check()
{
Z3_lbool r = (Z3_lbool)Native.Z3_optimize_check(Context.nCtx, NativeObject);
switch (r)
{
case Z3_lbool.Z3_L_TRUE:
case Z3_lbool.Z3_L_TRUE:
return Status.SATISFIABLE;
case Z3_lbool.Z3_L_FALSE:
case Z3_lbool.Z3_L_FALSE:
return Status.UNSATISFIABLE;
default:
default:
return Status.UNKNOWN;
}
}
}
/// <summary>
@ -198,27 +198,27 @@ namespace Microsoft.Z3
/// <summary>
/// Declare an arithmetical maximization objective.
/// Return a handle to the objective. The handle is used as
/// to retrieve the values of objectives after calling Check.
/// Return a handle to the objective. The handle is used as
/// to retrieve the values of objectives after calling Check.
/// </summary>
public Handle MkMaximize(ArithExpr e)
public Handle MkMaximize(ArithExpr e)
{
return new Handle(this, Native.Z3_optimize_maximize(Context.nCtx, NativeObject, e.NativeObject));
}
return new Handle(this, Native.Z3_optimize_maximize(Context.nCtx, NativeObject, e.NativeObject));
}
/// <summary>
/// Declare an arithmetical minimization objective.
/// Similar to MkMaximize.
/// Similar to MkMaximize.
/// </summary>
public Handle MkMinimize(ArithExpr e)
{
return new Handle(this, Native.Z3_optimize_minimize(Context.nCtx, NativeObject, e.NativeObject));
return new Handle(this, Native.Z3_optimize_minimize(Context.nCtx, NativeObject, e.NativeObject));
}
/// <summary>
/// Retrieve a lower bound for the objective handle.
/// </summary>
private ArithExpr GetLower(uint index)
private ArithExpr GetLower(uint index)
{
return (ArithExpr)Expr.Create(Context, Native.Z3_optimize_get_lower(Context.nCtx, NativeObject, index));
}
@ -236,7 +236,7 @@ namespace Microsoft.Z3
/// <summary>
/// Print the context to a string (SMT-LIB parseable benchmark).
/// </summary>
public override string ToString()
public override string ToString()
{
return Native.Z3_optimize_to_string(Context.nCtx, NativeObject);
}