/* vector/prop_source.c

 * 

 * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2007, 2010 Gerard Jungman, Brian Gough

 * 

 * 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 3 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.

 */

int

FUNCTION (gsl_vector, equal) (const TYPE (gsl_vector) * u, const TYPE (gsl_vector) * v)

{

  const size_t n = v->size;

  const size_t stride_u = u->stride ;

  const size_t stride_v = v->stride ;

  size_t j;

  if (u->size != v->size)

    {

      GSL_ERROR_VAL ("vectors must have same length", GSL_EBADLEN, 0);

    }

  for (j = 0; j < n; j++)

    {

      size_t k;

      for (k = 0; k < MULTIPLICITY; k++) 

        {

          if (u->data[MULTIPLICITY * stride_u * j + k] != v->data[MULTIPLICITY * stride_v * j + k])

            {

              return 0;

            }

        }

    }

  return 1;

}

int

FUNCTION (gsl_vector, isnull) (const TYPE (gsl_vector) * v)

{

  const size_t n = v->size;

  const size_t stride = v->stride ;

  size_t j;

  for (j = 0; j < n; j++)

    {

      size_t k;

      for (k = 0; k < MULTIPLICITY; k++) 

        {

          if (v->data[MULTIPLICITY * stride * j + k] != 0.0)

            {

              return 0;

            }

        }

    }

  return 1;

}

int

FUNCTION (gsl_vector, ispos) (const TYPE (gsl_vector) * v)

{

  const size_t n = v->size;

  const size_t stride = v->stride ;

  size_t j;

  for (j = 0; j < n; j++)

    {

      size_t k;

      for (k = 0; k < MULTIPLICITY; k++) 

        {

          if (v->data[MULTIPLICITY * stride * j + k] <= 0.0)

            {

              return 0;

            }

        }

    }

  return 1;

}

int

FUNCTION (gsl_vector, isneg) (const TYPE (gsl_vector) * v)

{

  const size_t n = v->size;

  const size_t stride = v->stride ;

  size_t j;

  for (j = 0; j < n; j++)

    {

      size_t k;

      for (k = 0; k < MULTIPLICITY; k++) 

        {

          if (v->data[MULTIPLICITY * stride * j + k] >= 0.0)

            {

              return 0;

            }

        }

    }

  return 1;

}

int

FUNCTION (gsl_vector, isnonneg) (const TYPE (gsl_vector) * v)

{

  const size_t n = v->size;

  const size_t stride = v->stride ;

  size_t j;

  for (j = 0; j < n; j++)

    {

      size_t k;

      for (k = 0; k < MULTIPLICITY; k++) 

        {

          if (v->data[MULTIPLICITY * stride * j + k] < 0.0)

            {

              return 0;

            }

        }

    }

  return 1;

}