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#ifndef MULTI_DIM_HPP
#define MULTI_DIM_HPP
#include <boost/array.hpp>
#include <vector>
#include <cassert>
#include <stdexcept>
namespace multi_dim{
using boost::array;
using std::vector;
using std::range_error;
template<typename ElementType_, std::size_t SIZE1_, std::size_t SIZE2_>
class Array2D{
private:
typedef array<ElementType_, SIZE1_ * SIZE2_> Container_;
public:
typedef typename Container_::value_type value_type;
typedef typename Container_::reference reference;
typedef typename Container_::const_reference const_reference;
typedef typename Container_::size_type size_type;
public:
reference at(const size_type i, const size_type j)
{
rangeCheck_(i, j);
return buffer_[i * SIZE2_ + j];
}
const_reference at(const size_type i, const size_type j) const
{
rangeCheck_(i, j);
return buffer_[i * SIZE2_ + j];
}
inline reference operator()(const size_type i, const size_type j)
{
return buffer_[i * SIZE2_ + j];
}
inline const_reference operator()(const size_type i, const size_type j) const
{
return buffer_[i * SIZE2_ + j];
}
size_type size1() const
{
return SIZE1_;
}
size_type size2() const
{
return SIZE2_;
}
private:
void rangeCheck_(const size_type i, const size_type j) const
{
if((i >= SIZE1_) || (j >= SIZE2_))
throw range_error();
}
private:
Container_ buffer_;
};
template<typename ElementType_>
class Matrix{
private:
typedef std::vector<ElementType_> Container_;
public:
typedef typename Container_::value_type value_type;
typedef typename Container_::reference reference;
typedef typename Container_::const_reference const_reference;
typedef typename Container_::size_type size_type;
public:
Matrix(const size_type nrows, const size_type ncols)
: buffer_(nrows * ncols), size1_(nrows), size2_(ncols)
{}
#if MATRIX_RESIZABLE
Matrix()
: buffer_(), size1_(0), size2_(0)
{}
void clear()
{
size1_ = 0;
size2_ = 0;
buffer_.clear();
}
void resize(const size_type nrows, const size_type ncols)
{
size1_ = nrows;
size2_ = ncols;
buffer_.resize(nrows * ncols);
}
#endif // MATRIX_RESIZABLE
reference at(const size_type i, const size_type j)
{
rangeCheck_(i, j);
return buffer_[i * size2_ + j];
}
const_reference at(const size_type i, const size_type j) const
{
rangeCheck_(i, j);
return buffer_[i * size2_ + j];
}
inline reference operator()(const size_type i, const size_type j)
{
return buffer_[i * size2_ + j];
}
inline const_reference operator()(const size_type i, const size_type j) const
{
return buffer_[i * size2_ + j];
}
size_type size1() const
{
return size1_;
}
size_type size2() const
{
return size2_;
}
private:
void rangeCheck_(const size_type i, const size_type j) const
{
if((i >= size1_) || (j >= size2_))
throw range_error();
}
private:
Container_ buffer_;
size_type size1_, size2_;
};
}
#endif
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