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/*****************************************************************************
*
* Copyright (c) 2000 - 2010, Lawrence Livermore National Security, LLC
* Produced at the Lawrence Livermore National Laboratory
* LLNL-CODE-400124
* All rights reserved.
*
* This file is part of VisIt. For details, see https://visit.llnl.gov/. The
* full copyright notice is contained in the file COPYRIGHT located at the root
* of the VisIt distribution or at http://www.llnl.gov/visit/copyright.html.
*
* 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 disclaimer below.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the disclaimer (as noted below) in the
* documentation and/or other materials provided with the distribution.
* - Neither the name of the LLNS/LLNL 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 LAWRENCE LIVERMORE NATIONAL SECURITY,
* LLC, THE U.S. DEPARTMENT OF ENERGY 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.
*
*****************************************************************************/
template<class T>
class AutoArray
{
public:
AutoArray(int _size=1000, int _ainc=1000, bool _strict=false)
{ size = _size;
ainc = _ainc;
maxidx = -1;
strictSize = _strict;
dataRetrieved = false;
dummy = 0.0;
if (size <= 0)
size = 1000;
if (ainc <= 0)
ainc = 1000;
data = (T*) malloc(size * sizeof(T));
};
~AutoArray()
{
if (!dataRetrieved)
{
if (data != 0)
free(data);
}
};
int GetSize() const
{
if (dataRetrieved)
return size;
return -1;
};
T* GetData()
{
if (dataRetrieved)
return 0;
dataRetrieved = true;
if (strictSize || (maxidx+1 < size/2))
{
data = (T*) realloc((void*)data, (maxidx+1) * sizeof(T));
size = maxidx+1;
}
return data;
};
T& operator[](int idx)
{
if (dataRetrieved)
return dummy;
// check if we need to resize
if (idx >= size)
{
int newSize = size;
while (idx >= newSize)
newSize += ainc;
// do the resize
size = newSize;
data = (T*) realloc((void*)data, size * sizeof(T));
}
if (idx > maxidx)
maxidx = idx;
return data[idx];
}
private:
T* data;
int size;
int ainc;
int maxidx;
float dummy;
bool strictSize;
bool dataRetrieved;
};
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