src/util/ValueStackOf.c

/*
 * The Apache Software License, Version 1.1
 * 
 * Copyright (c) 1999 The Apache Software Foundation.  All rights 
 * reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 * 
 * 2. 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.
 * 
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:  
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 * 
 * 4. The names "Xerces" and "Apache Software Foundation" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written 
 *    permission, please contact apache\@apache.org.
 * 
 * 5. Products derived from this software may not be called "Apache",
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 * 
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * SUCH DAMAGE.
 * ====================================================================
 * 
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation, and was
 * originally based on software copyright (c) 1999, International
 * Business Machines, Inc., http://www.ibm.com .  For more information
 * on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
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/**
 * $Log$
 * Revision 1.1  1999/11/09 01:05:29  twl
 * Initial revision
 *
 * Revision 1.2  1999/11/08 20:45:18  rahul
 * Swat for adding in Product name and CVS comment log variable.
 *
 */


// ---------------------------------------------------------------------------
//  Includes
// ---------------------------------------------------------------------------
#if defined(XML4C_TMPLSINC)
#include <util/ValueStackOf.hpp>
#endif


// ---------------------------------------------------------------------------
//  ValueStackOf: Constructors and Destructor
// ---------------------------------------------------------------------------
template <class TElem> ValueStackOf<TElem>::
ValueStackOf(const unsigned int fInitCapacity) :

    fVector(fInitCapacity)
{
}

template <class TElem> ValueStackOf<TElem>::~ValueStackOf()
{
}


// ---------------------------------------------------------------------------
//  ValueStackOf: Element management methods
// ---------------------------------------------------------------------------
template <class TElem> void ValueStackOf<TElem>::push(const TElem& toPush)
{
    fVector.addElement(toPush);
}

template <class TElem> const TElem& ValueStackOf<TElem>::peek() const
{
    const int curSize = fVector.size();
    if (curSize == 0)
        ThrowXML(EmptyStackException, XML4CExcepts::Stack_EmptyStack);

    return fVector.elementAt(curSize-1);
}

template <class TElem> TElem ValueStackOf<TElem>::pop()
{
    const int curSize = fVector.size();
    if (curSize == 0)
        ThrowXML(EmptyStackException, XML4CExcepts::Stack_EmptyStack);

    TElem retVal = fVector.elementAt(curSize-1);
    fVector.removeElementAt(curSize-1);
    return retVal;
}

template <class TElem> void ValueStackOf<TElem>::removeAllElements()
{
    fVector.removeAllElements();
}


// ---------------------------------------------------------------------------
//  ValueStackOf: Getter methods
// ---------------------------------------------------------------------------
template <class TElem> bool ValueStackOf<TElem>::empty()
{
    return (fVector.size() == 0);
}

template <class TElem> unsigned int ValueStackOf<TElem>::curCapacity()
{
    return fVector.curCapacity();
}

template <class TElem> unsigned int ValueStackOf<TElem>::size()
{
    return fVector.size();
}




// ---------------------------------------------------------------------------
//  ValueStackEnumerator: Constructors and Destructor
// ---------------------------------------------------------------------------
template <class TElem> ValueStackEnumerator<TElem>::
ValueStackEnumerator(       ValueStackOf<TElem>* const  toEnum
                    , const bool                        adopt) :

    fAdopted(adopt)
    , fCurIndex(0)
    , fToEnum(toEnum)
    , fVector(&toEnum->fVector)
{
}

template <class TElem> ValueStackEnumerator<TElem>::~ValueStackEnumerator()
{
    if (fAdopted)
        delete fToEnum;
}


// ---------------------------------------------------------------------------
//  ValueStackEnumerator: Enum interface
// ---------------------------------------------------------------------------
template <class TElem> bool ValueStackEnumerator<TElem>::hasMoreElements() const
{
    if (fCurIndex >= fVector->size())
        return false;
    return true;
}

template <class TElem> TElem& ValueStackEnumerator<TElem>::nextElement()
{
    return fVector->elementAt(fCurIndex++);
}

template <class TElem> void ValueStackEnumerator<TElem>::Reset()
{
    fCurIndex = 0;
}