/// <summary>
/// Create CUDD with maxMemory in MB
/// [ REFS: 'none', DEREFS: 'none' ]
/// </summary>
public static void InitialiseCUDD(int maxMemory, int uniqueSlots, int cacheSlots, double epsilon)
{
manager = PlatformInvoke.DD_InitialiseCUDD(maxMemory, uniqueSlots, cacheSlots, epsilon);
ZERO = Constant(0);
ONE = Constant(1);
PLUS_INFINITY = PlusInfinity();
MINUS_INFINITY = MinusInfinity();
//PlatformInvoke.Cudd_SetStdoutToFile(manager, Environment.GetFolderPath(Environment.SpecialFolder.Desktop) + @"\out.txt");
}
/// <summary>
/// [Compares two ADDs for equality within tolerance.]
/// Description [Compares two ADDs for equality within tolerance. Two
/// ADDs are reported to be equal if the maximum difference between them
/// (the sup norm of their difference) is less than or equal to the
/// tolerance parameter.
/// </summary>
/// <param name="add1"></param>
/// <param name="add2"></param>
/// <returns></returns>
public static bool IsEqual(CUDDNode add1, CUDDNode add2)
{
if (CUDD.TERMINATION_CRITERIA > 0)
{
return(PlatformInvoke.Cudd_EqualSupNormRel(manager, add1.Ptr, add2.Ptr, TERMINATION_EPSILON, 0) > 0);
}
else
{
return(PlatformInvoke.Cudd_EqualSupNorm(manager, add1.Ptr, add2.Ptr, TERMINATION_EPSILON, 0) > 0);
}
}
/// <summary>
/// Close down the CUDD package
/// Deletes resources associated with a DD manager
/// [ REFS: 'none', DEREFS: 'none' ]
/// </summary>
public static void CloseDownCUDD()
{
//Deref(ZERO, ONE, PLUS_INFINITY, MINUS_INFINITY);
//Use in debug mode, to check whether any wrong in calculating reference number
//CUDD.Debug.Debugs();
//Use this to print the summary information
//CUDD.Print.PrintInfo(Environment.GetFolderPath(Environment.SpecialFolder.Desktop) + @"\info.txt");
PlatformInvoke.Cudd_Quit(manager);
}
public static int ShuffleHeap(List <int> newPermutation)
{
IntPtr newPermutationPtr = PlatformInvoke.DDV_AllocateIntArray(newPermutation.Count);
for (int i = 0; i < newPermutation.Count; i++)
{
PlatformInvoke.DDV_SetElementIntArray(newPermutationPtr, i, newPermutation[i]);
}
int result = PlatformInvoke.Cudd_ShuffleHeap(manager, newPermutationPtr);
PlatformInvoke.DDV_FreeIntArray(newPermutationPtr);
return(result);
}
/// <summary>
/// Return max of ADD but must not be greater than a threshold
/// [ REFS: 'none', DEREFS: 'none' ]
/// </summary>
public static double FindMaxThreshold(CUDDNode dd, int threshold)
{
return(PlatformInvoke.DD_FindMaxThreshold(manager, dd.Ptr, threshold));
}
/// <summary>
/// Get the ith variable, if not exist then create it
/// [ REFS: 'result', DEREFS: 'none' ]
/// </summary>
public static CUDDNode Var(int i)
{
return(new CUDDNode(PlatformInvoke.DD_Var(manager, i)));
}
/// <summary>
/// Return max of ADD
/// [ REFS: 'none', DEREFS: 'none' ]
/// </summary>
public static double FindMax(CUDDNode dd)
{
return(PlatformInvoke.DD_FindMax(manager, dd.Ptr));
}
/// <summary>
/// Returns the memory in use by the manager measured in bytes.
/// </summary>
/// <returns></returns>
public static int ReadMemoryInUse()
{
return((int)PlatformInvoke.Cudd_ReadMemoryInUse(manager));
}
/// <summary>
/// Allocate an array of n DdNodes and return the pointer
/// </summary>
public static IntPtr AllocateNodes(int n)
{
return(PlatformInvoke.DDV_AllocateNodes(n));
}
/// <summary>
/// Return number of minterm which made the ADD != 0
/// [ REFS: 'none', DEREFS: 'none' ]
/// </summary>
public static double GetNumMinterms(CUDDNode dd, int numVars)
{
return(PlatformInvoke.DD_GetNumMinterms(manager, dd.Ptr, numVars));
}
/// <summary>
/// Finds the variables on which a DD depends.
/// Returns a ADD consisting of the product of the variables.
/// [ REFS: 'result', DEREFS: 'none' ]
/// </summary>
public static CUDDNode GetSupport(CUDDNode dd)
{
return(new CUDDNode(PlatformInvoke.DD_GetSupport(manager, dd.Ptr)));
}
/// <summary>
/// Return the reference count
/// </summary>
public static int GetReference(CUDDNode dd)
{
return(PlatformInvoke.DDN_GetReference(dd.Ptr));
}
/// <summary>
/// Increases the reference count of a node, if it is not saturated
/// [ REFS: dd, DEREFS: 'none' ]
/// </summary>
public static void Ref(CUDDNode dd)
{
PlatformInvoke.Cudd_Ref(dd.Ptr);
}
/// <summary>
/// Set the maximum memory of CUDD in MB
/// [ REFS: 'none', DEREFS: 'none' ]
/// </summary>
/// <param name="maxMemory"></param>
public static void SetCUDDMaxMem(int maxMemory)
{
PlatformInvoke.DD_SetCUDDMaxMem(manager, maxMemory);
}
/// <summary>
/// Sets the epsilon parameter of the manager
/// [ REFS: 'none', DEREFS: 'none' ]
/// </summary>
public static void SetCUDDEpsilon(double epsilon)
{
PlatformInvoke.DD_SetCUDDEpsilon(manager, epsilon);
}
/// <summary>
/// Return the value of the given constant node
/// </summary>
public static double GetValue(CUDDNode dd)
{
return(PlatformInvoke.DDN_GetValue(dd.Ptr));
}
/// <summary>
/// Free the array of DdNodes
/// </summary>
public static void FreeArray(IntPtr array)
{
PlatformInvoke.DDV_FreeArray(array);
}
/// <summary>
/// Assign the ith DdNode of array
/// </summary>
public static void SetElement(IntPtr vars, IntPtr var, int i)
{
PlatformInvoke.DDV_SetElement(vars, var, i);
}
/// <summary>
/// Return the first cube making the ADD not 0
/// [ REFS: 'result', DEREFS: 'dd' ]
/// </summary>
public static CUDDNode RestrictToFirst(CUDDNode dd, CUDDVars vars)
{
return(new CUDDNode(PlatformInvoke.DD_RestrictToFirst(manager, dd.Ptr, vars.GetArrayPointer(), vars.GetNumVars())));
}
/// <summary>
/// Decreases the reference count of node
/// [ REFS: 'none', DEREFS: dd ]
/// </summary>
public static void Deref(CUDDNode dd)
{
PlatformInvoke.Cudd_RecursiveDeref(manager, dd.Ptr);
}
/// <summary>
/// Return number of terminals
/// [ REFS: 'none', DEREFS: 'none' ]
/// </summary>
public static int GetNumTerminals(CUDDNode dd)
{
return(PlatformInvoke.DD_GetNumTerminals(manager, dd.Ptr));
}
/// <summary>
/// return the variable index of the variable currently at position pos
/// </summary>
/// <param name="i">The position of the varaible index to get</param>
/// <returns></returns>
public static int ReadInvPerm(int i)
{
return(PlatformInvoke.Cudd_ReadPerm(manager, i));
}
/// <summary>
/// returns number of paths in dd
/// [ REFS: 'none', DEREFS: 'none' ]
/// </summary>
public static double GetNumPaths(CUDDNode dd)
{
return(PlatformInvoke.DD_GetNumPaths(manager, dd.Ptr));
}
/// <summary>
/// Return the index of the given node
/// </summary>
public static int GetIndex(CUDDNode dd)
{
return(PlatformInvoke.DDN_GetIndex(dd.Ptr));
}
/// <summary>
/// Return the int value corresponding the binary representation of the current minterm
/// [ REFS: 'none', DEREFS: 'none' ]
/// </summary>
public static int MinTermToInt(CUDDNode dd, CUDDVars vars)
{
return(PlatformInvoke.Cudd_MinTermToInt(manager, dd.Ptr, vars.GetArrayPointer(), vars.GetNumVars()));
}
/// <summary>
/// Return the minus infinity constant
/// [ REFS: 'result', DEREFS: 'none' ]
/// </summary>
/// <returns></returns>
public static CUDDNode MinusInfinity()
{
return(new CUDDNode(PlatformInvoke.DD_MinusInfinity(manager)));
}
/// <summary>
/// Create a new dd, initial value is Zero
/// Careful to use with the default value 0
/// Working with vector, should not use, should set vector default value is -infinity
/// [ REFS: 'result', DEREFS: 'none' ]
/// </summary>
/// <returns></returns>
public static CUDDNode Create()
{
return(new CUDDNode(PlatformInvoke.DD_Create(manager)));
}
/// <summary>
/// Return the Else node of the given node
/// </summary>
public static CUDDNode GetElse(CUDDNode dd)
{
return(new CUDDNode(PlatformInvoke.DDN_GetElse(dd.Ptr)));
}
public static void ManuallyReorder(int minSize)
{
PlatformInvoke.Cudd_ManuallyReorder(manager, minSize);
}
/// <summary>
/// Return a constant
/// [ REFS: 'result', DEREFS: 'none' ]
/// </summary>
public static CUDDNode Constant(double value)
{
return(new CUDDNode(PlatformInvoke.DD_Constant(manager, value)));
}