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/** \file \ingroup smoke
*/
/*
*
* Template Numerical Toolkit (TNT)
*
* Mathematical and Computational Sciences Division
* National Institute of Technology,
* Gaithersburg, MD USA
*
*
* This software was developed at the National Institute of Standards and
* Technology (NIST) by employees of the Federal Government in the course
* of their official duties. Pursuant to title 17 Section 105 of the
* United States Code, this software is not subject to copyright protection
* and is in the public domain. NIST assumes no responsibility whatsoever for
* its use by other parties, and makes no guarantees, expressed or implied,
* about its quality, reliability, or any other characteristic.
*
*/
#ifndef TNT_ARRAY1D_H
#define TNT_ARRAY1D_H
//#include <cstdlib>
#include <iostream>
#ifdef TNT_BOUNDS_CHECK
#include <assert.h>
#endif
#include "tnt_i_refvec.h"
namespace TNT
{
template <class T>
class Array1D
{
private:
/* ... */
i_refvec<T> v_;
int n_;
T* data_; /* this normally points to v_.begin(), but
* could also point to a portion (subvector)
* of v_.
*/
void copy_(T* p, const T* q, int len) const;
void set_(T* begin, T* end, const T& val);
public:
typedef T value_type;
Array1D();
explicit Array1D(int n);
Array1D(int n, const T &a);
Array1D(int n, T *a);
inline Array1D(const Array1D &A);
inline operator T*();
inline operator const T*();
inline Array1D & operator=(const T &a);
inline Array1D & operator=(const Array1D &A);
inline Array1D & ref(const Array1D &A);
Array1D copy() const;
Array1D & inject(const Array1D & A);
inline T& operator[](int i);
inline const T& operator[](int i) const;
inline int dim1() const;
inline int dim() const;
~Array1D();
/* ... extended interface ... */
inline int ref_count() const;
inline Array1D<T> subarray(int i0, int i1);
};
template <class T>
Array1D<T>::Array1D() : v_(), n_(0), data_(0) {}
template <class T>
Array1D<T>::Array1D(const Array1D<T> &A) : v_(A.v_), n_(A.n_),
data_(A.data_)
{
#ifdef TNT_DEBUG
std::cout << "Created Array1D(const Array1D<T> &A) \n";
#endif
}
template <class T>
Array1D<T>::Array1D(int n) : v_(n), n_(n), data_(v_.begin())
{
#ifdef TNT_DEBUG
std::cout << "Created Array1D(int n) \n";
#endif
}
template <class T>
Array1D<T>::Array1D(int n, const T &val) : v_(n), n_(n), data_(v_.begin())
{
#ifdef TNT_DEBUG
std::cout << "Created Array1D(int n, const T& val) \n";
#endif
set_(data_, data_+ n, val);
}
template <class T>
Array1D<T>::Array1D(int n, T *a) : v_(a), n_(n) , data_(v_.begin())
{
#ifdef TNT_DEBUG
std::cout << "Created Array1D(int n, T* a) \n";
#endif
}
template <class T>
inline Array1D<T>::operator T*()
{
return &(v_[0]);
}
template <class T>
inline Array1D<T>::operator const T*()
{
return &(v_[0]);
}
template <class T>
inline T& Array1D<T>::operator[](int i)
{
#ifdef TNT_BOUNDS_CHECK
assert(i>= 0);
assert(i < n_);
#endif
return data_[i];
}
template <class T>
inline const T& Array1D<T>::operator[](int i) const
{
#ifdef TNT_BOUNDS_CHECK
assert(i>= 0);
assert(i < n_);
#endif
return data_[i];
}
template <class T>
Array1D<T> & Array1D<T>::operator=(const T &a)
{
set_(data_, data_+n_, a);
return *this;
}
template <class T>
Array1D<T> Array1D<T>::copy() const
{
Array1D A( n_);
copy_(A.data_, data_, n_);
return A;
}
template <class T>
Array1D<T> & Array1D<T>::inject(const Array1D &A)
{
if (A.n_ == n_)
copy_(data_, A.data_, n_);
return *this;
}
template <class T>
Array1D<T> & Array1D<T>::ref(const Array1D<T> &A)
{
if (this != &A)
{
v_ = A.v_; /* operator= handles the reference counting. */
n_ = A.n_;
data_ = A.data_;
}
return *this;
}
template <class T>
Array1D<T> & Array1D<T>::operator=(const Array1D<T> &A)
{
return ref(A);
}
template <class T>
inline int Array1D<T>::dim1() const { return n_; }
template <class T>
inline int Array1D<T>::dim() const { return n_; }
template <class T>
Array1D<T>::~Array1D() {}
/* ............................ exented interface ......................*/
template <class T>
inline int Array1D<T>::ref_count() const
{
return v_.ref_count();
}
template <class T>
inline Array1D<T> Array1D<T>::subarray(int i0, int i1)
{
if ((i0 > 0) && (i1 < n_) || (i0 <= i1))
{
Array1D<T> X(*this); /* create a new instance of this array. */
X.n_ = i1-i0+1;
X.data_ += i0;
return X;
}
else
{
return Array1D<T>();
}
}
/* private internal functions */
template <class T>
void Array1D<T>::set_(T* begin, T* end, const T& a)
{
for (T* p=begin; p<end; p++)
*p = a;
}
template <class T>
void Array1D<T>::copy_(T* p, const T* q, int len) const
{
T *end = p + len;
while (p<end )
*p++ = *q++;
}
} /* namespace TNT */
#endif
/* TNT_ARRAY1D_H */
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