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qps-packaging/src/svec.h

156 lines
3.5 KiB

/*
* svec.h
* This file is part of qps -- Qt-based visual process status monitor
*
* Copyright 1997-1999 Mattias Engdegård
*
* 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.
*/
#ifndef SVEC_H
#define SVEC_H
#include <map>
#include <iostream>
template <typename Key, typename T> class SHash : public std::map<Key, T>
{
public:
T value(Key k, T r)
{
using namespace std;
typename map<Key, T>::const_iterator it;
it = map<Key, T>::find(k);
if (it == map<Key, T>::end())
return r;
return (*it).second;
}
void insert(Key k, T r)
{
using namespace std;
map<Key, T>::insert(pair<Key, T>(k, r));
}
bool contains(Key k)
{
if (value(k, NULL) == NULL)
return false;
else
return true;
}
};
#include <stdlib.h>
//#ifndef NDEBUG
//#define CHECK_INDICES // Check invalid vector indices (the default)
//#endif
template <class T> class Svec
{
public:
Svec(int max = 16);
Svec(const Svec<T> &s);
~Svec();
Svec<T> &operator=(const Svec<T> &s);
int size() const;
void setSize(int newsize);
T &operator[](int i);
T operator[](int i) const;
void set(int i, T val);
void sort(int (*compare)(const T *a, const T *b));
void add(T x);
void insert(int index, T val);
void remove(int index);
void Delete(int index);
void clear();
void purge(); // like clear() but deletes all contents
private:
void grow();
void setextend(int index, T value);
void indexerr(int index) const;
T *vect;
int alloced; // # of entries allocated
int used; // # of entries actually used (size)
};
template <class T> inline Svec<T>::Svec(int max) : alloced(max), used(0)
{
vect = (T *)malloc(max * sizeof(T));
}
template <class T> inline Svec<T>::~Svec() { free(vect); }
template <class T> inline int Svec<T>::size() const { return used; }
template <class T> inline T &Svec<T>::operator[](int i)
{
#ifdef CHECK_INDICES
if (i < 0 || i >= used)
indexerr(i);
#endif
return vect[i];
}
template <class T> inline T Svec<T>::operator[](int i) const
{
#ifdef CHECK_INDICES
if (i < 0 || i >= used)
indexerr(i);
#endif
return vect[i];
}
template <class T> inline void Svec<T>::set(int i, T val)
{
if (i < 0 || i >= used)
setextend(i, val);
else
vect[i] = val;
}
template <class T> inline void Svec<T>::add(T x)
{
if (++used > alloced)
grow();
vect[used - 1] = x;
}
/*
template<class T>
inline void Svec<T>::add(T x)
{
if(++used > alloced)
{
}
vect[used - 1] = x;
}
*/
template <class T> inline void Svec<T>::clear() { used = 0; }
template <class T> inline void Svec<T>::grow()
{
// printf("size=%d\n",sizeof(T));
vect = (T *)realloc(vect, (alloced *= 2) * sizeof(T));
}
#endif // SVEC_H