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/**
* File: Vector.h
* Project: libvdr - classes taken from vdr-project
*
* from "Video Disk Recorder":
*
* Copyright (C) 2000, 2003, 2006, 2008 Klaus Schmidinger
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
* Or, point your browser to http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*
* The original author can be reached at kls@tvdr.de
*
* The vdr project's page is at http://www.tvdr.de
*
*/
#ifndef VECTOR_H
#define VECTOR_H
#include <stddef.h>
#include <Logging.h>
#include <stdlib.h>
template<class T> class cVector {
///< cVector may only be used for *simple* types, like int or pointers - not for class objects that allocate additional memory!
public:
cVector(int Allocated = 10)
{
allocated = 0;
size = 0;
data = NULL;
Realloc(Allocated);
}
virtual ~cVector() { free(data); }
T& At(int Index) const
{
Realloc(Index);
if (Index >= size)
size = Index + 1;
return data[Index];
}
const T& operator[](int Index) const
{
return At(Index);
}
T& operator[](int Index)
{
return At(Index);
}
int Size(void) const { return size; }
virtual void Insert(T Data, int Before = 0)
{
if (Before < size) {
Realloc(size);
memmove(&data[Before + 1], &data[Before], (size - Before) * sizeof(T));
size++;
data[Before] = Data;
}
else
Append(Data);
}
virtual void Append(T Data)
{
if (size >= allocated)
Realloc(allocated * 3 / 2); // increase size by 50%
data[size++] = Data;
}
virtual void Remove(int Index)
{
if (Index < size - 1)
memmove(&data[Index], &data[Index + 1], (size - Index) * sizeof(T));
size--;
}
virtual void Clear(void)
{
for (int i = 0; i < size; i++)
data[i] = T(0);
size = 0;
}
void Sort(__compar_fn_t Compare)
{
qsort(data, size, sizeof(T), Compare);
}
private:
mutable int allocated;
mutable int size;
mutable T *data;
cVector(const cVector &Vector) {} // don't copy...
cVector &operator=(const cVector &Vector) { return *this; } // ...or assign this!
void Realloc(int Index) const
{
if (++Index > allocated) {
data = (T *)realloc(data, Index * sizeof(T));
if (!data) {
esyslog("ERROR: out of memory - abort!");
abort();
}
for (int i = allocated; i < Index; i++)
data[i] = T(0);
allocated = Index;
}
}
};
#endif /* VECTOR_H */
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