#include "misc/util/util_hack.h"
#include "mtrInt.h"

Functions
MtrNode *	Mtr_AllocNode (void)

void	Mtr_DeallocNode (MtrNode *node)

MtrNode *	Mtr_InitTree (void)

void	Mtr_FreeTree (MtrNode *node)

MtrNode *	Mtr_CopyTree (MtrNode *node, int expansion)

void	Mtr_MakeFirstChild (MtrNode parent, MtrNode child)

void	Mtr_MakeLastChild (MtrNode parent, MtrNode child)

MtrNode *	Mtr_CreateFirstChild (MtrNode *parent)

MtrNode *	Mtr_CreateLastChild (MtrNode *parent)

void	Mtr_MakeNextSibling (MtrNode first, MtrNode second)

void	Mtr_PrintTree (MtrNode *node)

Variables
static ABC_NAMESPACE_IMPL_START char rcsid[]	MTR_UNUSED = "$Id: mtrBasic.c,v 1.13 2009/02/20 02:03:47 fabio Exp $"

Function Documentation

MtrNode* Mtr_AllocNode ( void )

AutomaticStart AutomaticEnd Function********************************************************************

Synopsis [Allocates new tree node.]

Description [Allocates new tree node. Returns pointer to node.]

SideEffects [None]

SeeAlso [Mtr_DeallocNode]

Definition at line 118 of file mtrBasic.c.

 {
     MtrNode *node;
 
     node = ABC_ALLOC(MtrNode,1);
     return node;
 
 } /* Mtr_AllocNode */

MtrNode* Mtr_CopyTree	(	MtrNode *	node,
		int	expansion
	)

Function********************************************************************

Synopsis [Makes a copy of tree.]

Description [Makes a copy of tree. If parameter expansion is greater than 1, it will expand the tree by that factor. It is an error for expansion to be less than 1. Returns a pointer to the copy if successful; NULL otherwise.]

SideEffects [None]

SeeAlso [Mtr_InitTree]

Definition at line 215 of file mtrBasic.c.

 {
     MtrNode *copy;
 
     if (node == NULL) return(NULL);
     if (expansion < 1) return(NULL);
     copy = Mtr_AllocNode();
     if (copy == NULL) return(NULL);
     copy->parent = copy->elder = copy->child = copy->younger = NULL;
     if (node->child != NULL) {
         copy->child = Mtr_CopyTree(node->child, expansion);
         if (copy->child == NULL) {
             Mtr_DeallocNode(copy);
             return(NULL);
         }
     }
     if (node->younger != NULL) {
         copy->younger = Mtr_CopyTree(node->younger, expansion);
         if (copy->younger == NULL) {
             Mtr_FreeTree(copy);
             return(NULL);
         }
     }
     copy->flags = node->flags;
     copy->low = node->low * expansion;
     copy->size = node->size * expansion;
     copy->index = node->index * expansion;
     if (copy->younger) copy->younger->elder = copy;
     if (copy->child) {
         MtrNode *auxnode = copy->child;
         while (auxnode != NULL) {
             auxnode->parent = copy;
             auxnode = auxnode->younger;
         }
     }
     return(copy);
 
 } /* end of Mtr_CopyTree */

MtrNode* Mtr_CreateFirstChild ( MtrNode * parent )

Function********************************************************************

Synopsis [Creates a new node and makes it the first child of parent.]

Description [Creates a new node and makes it the first child of parent. Returns pointer to new child.]

SideEffects [None]

SeeAlso [Mtr_MakeFirstChild Mtr_CreateLastChild]

Definition at line 337 of file mtrBasic.c.

 {
     MtrNode *child;
 
     child = Mtr_AllocNode();
     if (child == NULL) return(NULL);
 
     child->child = child->younger = child-> elder = NULL;
     child->flags = 0;
     Mtr_MakeFirstChild(parent,child);
     return(child);
 
 } /* end of Mtr_CreateFirstChild */

MtrNode* Mtr_CreateLastChild ( MtrNode * parent )

Function********************************************************************

Synopsis [Creates a new node and makes it the last child of parent.]

Description [Creates a new node and makes it the last child of parent. Returns pointer to new child.]

SideEffects [None]

SeeAlso [Mtr_MakeLastChild Mtr_CreateFirstChild]

Definition at line 366 of file mtrBasic.c.

 {
     MtrNode *child;
 
     child = Mtr_AllocNode();
     if (child == NULL) return(NULL);
 
     child->child = child->younger = child->elder = NULL;
     child->flags = 0;
     Mtr_MakeLastChild(parent,child);
     return(child);
 
 } /* end of Mtr_CreateLastChild */

void Mtr_DeallocNode ( MtrNode * node )

Function********************************************************************

Synopsis [Deallocates tree node.]

Description []

SideEffects [None]

SeeAlso [Mtr_AllocNode]

Definition at line 140 of file mtrBasic.c.

 {
     ABC_FREE(node);
     return;
 
 } /* end of Mtr_DeallocNode */

void Mtr_FreeTree ( MtrNode * node )

Function********************************************************************

Synopsis [Disposes of tree rooted at node.]

Description []

SideEffects [None]

SeeAlso [Mtr_InitTree]

Definition at line 188 of file mtrBasic.c.

 {
     if (node == NULL) return;
     if (! MTR_TEST(node,MTR_TERMINAL)) Mtr_FreeTree(node->child);
     Mtr_FreeTree(node->younger);
     Mtr_DeallocNode(node);
     return;
 
 } /* end of Mtr_FreeTree */

MtrNode* Mtr_InitTree ( void )

Function********************************************************************

Synopsis [Initializes tree with one node.]

Description [Initializes tree with one node. Returns pointer to node.]

SideEffects [None]

SeeAlso [Mtr_FreeTree Mtr_InitGroupTree]

Definition at line 161 of file mtrBasic.c.

 {
     MtrNode *node;
 
     node = Mtr_AllocNode();
     if (node == NULL) return(NULL);
 
     node->parent = node->child = node->elder = node->younger = NULL;
     node->flags = 0;
 
     return(node);
 
 } /* end of Mtr_InitTree */

void Mtr_MakeFirstChild	(	MtrNode *	parent,
		MtrNode *	child
	)

Function********************************************************************

Synopsis [Makes child the first child of parent.]

Description []

SideEffects [None]

SeeAlso [Mtr_MakeLastChild Mtr_CreateFirstChild]

Definition at line 269 of file mtrBasic.c.

 {
     child->parent = parent;
     child->younger = parent->child;
     child->elder = NULL;
     if (parent->child != NULL) {
 #ifdef MTR_DEBUG
         assert(parent->child->elder == NULL);
 #endif
         parent->child->elder = child;
     }
     parent->child = child;
     return;
 
 } /* end of Mtr_MakeFirstChild */

void Mtr_MakeLastChild	(	MtrNode *	parent,
		MtrNode *	child
	)

Function********************************************************************

Synopsis [Makes child the last child of parent.]

Description []

SideEffects [None]

SeeAlso [Mtr_MakeFirstChild Mtr_CreateLastChild]

Definition at line 300 of file mtrBasic.c.

 {
     MtrNode *node;
 
     child->younger = NULL;
 
     if (parent->child == NULL) {
         parent->child = child;
         child->elder = NULL;
     } else {
         for (node = parent->child;
              node->younger != NULL;
              node = node->younger);
         node->younger = child;
         child->elder = node;
     }
     child->parent = parent;
     return;
 
 } /* end of Mtr_MakeLastChild */

void Mtr_MakeNextSibling	(	MtrNode *	first,
		MtrNode *	second
	)

Function********************************************************************

Synopsis [Makes second the next sibling of first.]

Description [Makes second the next sibling of first. Second becomes a child of the parent of first.]

SideEffects [None]

SeeAlso []

Definition at line 395 of file mtrBasic.c.

 {
     second->younger = first->younger;
     if (first->younger != NULL) {
         first->younger->elder = second;
     }
     second->parent = first->parent;
     first->younger = second;
     second->elder = first;
     return;
 
 } /* end of Mtr_MakeNextSibling */

void Mtr_PrintTree ( MtrNode * node )

Function********************************************************************

Synopsis [Prints a tree, one node per line.]

Description []

SideEffects [None]

SeeAlso [Mtr_PrintGroups]

Definition at line 423 of file mtrBasic.c.

 {
     if (node == NULL) return;
     (void) fprintf(stdout,
 #if SIZEOF_VOID_P == 8
     "N=0x%-8lx C=0x%-8lx Y=0x%-8lx E=0x%-8lx P=0x%-8lx F=%x L=%u S=%u\n",
     (unsigned long) node, (unsigned long) node->child,
     (unsigned long) node->younger, (unsigned long) node->elder,
     (unsigned long) node->parent, node->flags, node->low, node->size);
 #else
     "N=0x%-8x C=0x%-8x Y=0x%-8x E=0x%-8x P=0x%-8x F=%x L=%hu S=%hu\n",
     (unsigned) node, (unsigned) node->child,
     (unsigned) node->younger, (unsigned) node->elder,
     (unsigned) node->parent, node->flags, node->low, node->size);
 #endif
     if (!MTR_TEST(node,MTR_TERMINAL)) Mtr_PrintTree(node->child);
     Mtr_PrintTree(node->younger);
     return;
 
 } /* end of Mtr_PrintTree */

Variable Documentation

ABC_NAMESPACE_IMPL_START char rcsid [] MTR_UNUSED = "$Id: mtrBasic.c,v 1.13 2009/02/20 02:03:47 fabio Exp $"

static

CFile***********************************************************************

FileName [mtrBasic.c]

PackageName [mtr]

Synopsis [Basic manipulation of multiway branching trees.]

Description [External procedures included in this module:

]

SeeAlso [cudd package]

Author [Fabio Somenzi]

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

Neither the name of the University of Colorado nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.]

Definition at line 85 of file mtrBasic.c.

Functions

Variables

Function Documentation

Variable Documentation