tnt_array1d_utils.h

/*
*
* 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_UTILS_H
#define TNT_ARRAY1D_UTILS_H
 
#include <cstdlib>
#include <cassert>
 
namespace TNT
{
 
 
template <class T>
std::ostream& operator<<(std::ostream &s, const Array1D<T> &A)
{
    int N=A.dim1();
 
#ifdef TNT_DEBUG
    s << "addr: " << (void *) &A[0] << "\n";
#endif
    s << N << "\n";
    for (int j=0; j<N; j++)
    {
       s << A[j] << "\n";
    }
    s << "\n";
 
    return s;
}
 
template <class T>
std::istream& operator>>(std::istream &s, Array1D<T> &A)
{
    int N;
    s >> N;
 
    Array1D<T> B(N);
    for (int i=0; i<N; i++)
        s >> B[i];
    A = B;
    return s;
}
 
 
 
template <class T>
Array1D<T> operator+(const Array1D<T> &A, const Array1D<T> &B)
{
    int n = A.dim1();
 
    if (B.dim1() != n )
        return Array1D<T>();
 
    else
    {
        Array1D<T> C(n);
 
        for (int i=0; i<n; i++)
        {
            C[i] = A[i] + B[i];
        }
        return C;
    }
}
 
 
 
template <class T>
Array1D<T> operator-(const Array1D<T> &A, const Array1D<T> &B)
{
    int n = A.dim1();
 
    if (B.dim1() != n )
        return Array1D<T>();
 
    else
    {
        Array1D<T> C(n);
 
        for (int i=0; i<n; i++)
        {
            C[i] = A[i] - B[i];
        }
        return C;
    }
}
 
 
template <class T>
Array1D<T> operator*(const Array1D<T> &A, const Array1D<T> &B)
{
    int n = A.dim1();
 
    if (B.dim1() != n )
        return Array1D<T>();
 
    else
    {
        Array1D<T> C(n);
 
        for (int i=0; i<n; i++)
        {
            C[i] = A[i] * B[i];
        }
        return C;
    }
}
 
 
template <class T>
Array1D<T> operator/(const Array1D<T> &A, const Array1D<T> &B)
{
    int n = A.dim1();
 
    if (B.dim1() != n )
        return Array1D<T>();
 
    else
    {
        Array1D<T> C(n);
 
        for (int i=0; i<n; i++)
        {
            C[i] = A[i] / B[i];
        }
        return C;
    }
}
 
 
 
 
 
 
 
 
 
template <class T>
Array1D<T>&  operator+=(Array1D<T> &A, const Array1D<T> &B)
{
    int n = A.dim1();
 
    if (B.dim1() == n)
    {
        for (int i=0; i<n; i++)
        {
                A[i] += B[i];
        }
    }
    return A;
}
 
 
 
 
template <class T>
Array1D<T>&  operator-=(Array1D<T> &A, const Array1D<T> &B)
{
    int n = A.dim1();
 
    if (B.dim1() == n)
    {
        for (int i=0; i<n; i++)
        {
                A[i] -= B[i];
        }
    }
    return A;
}
 
 
 
template <class T>
Array1D<T>&  operator*=(Array1D<T> &A, const Array1D<T> &B)
{
    int n = A.dim1();
 
    if (B.dim1() == n)
    {
        for (int i=0; i<n; i++)
        {
                A[i] *= B[i];
        }
    }
    return A;
}
 
 
 
 
template <class T>
Array1D<T>&  operator/=(Array1D<T> &A, const Array1D<T> &B)
{
    int n = A.dim1();
 
    if (B.dim1() == n)
    {
        for (int i=0; i<n; i++)
        {
                A[i] /= B[i];
        }
    }
    return A;
}
 
 
 
 
 
 
} // namespace TNT
 
#endif