/* vector/gsl_vector_int.h

 * 

 * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2007 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.

 */

#ifndef __GSL_VECTOR_INT_H__

#define __GSL_VECTOR_INT_H__

#include <stdlib.h>

#include <gsl/gsl_types.h>

#include <gsl/gsl_errno.h>

#include <gsl/gsl_inline.h>

#include <gsl/gsl_check_range.h>

#include <gsl/gsl_block_int.h>

#undef __BEGIN_DECLS

#undef __END_DECLS

#ifdef __cplusplus

# define __BEGIN_DECLS extern "C" {

# define __END_DECLS }

#else

# define __BEGIN_DECLS /* empty */

# define __END_DECLS /* empty */

#endif

__BEGIN_DECLS

typedef struct 

{

  size_t size;

  size_t stride;

  int *data;

  gsl_block_int *block;

  int owner;

} 

gsl_vector_int;

typedef struct

{

  gsl_vector_int vector;

} _gsl_vector_int_view;

typedef _gsl_vector_int_view gsl_vector_int_view;

typedef struct

{

  gsl_vector_int vector;

} _gsl_vector_int_const_view;

typedef const _gsl_vector_int_const_view gsl_vector_int_const_view;

/* Allocation */

gsl_vector_int *gsl_vector_int_alloc (const size_t n);

gsl_vector_int *gsl_vector_int_calloc (const size_t n);

gsl_vector_int *gsl_vector_int_alloc_from_block (gsl_block_int * b,

                                                     const size_t offset, 

                                                     const size_t n, 

                                                     const size_t stride);

gsl_vector_int *gsl_vector_int_alloc_from_vector (gsl_vector_int * v,

                                                      const size_t offset, 

                                                      const size_t n, 

                                                      const size_t stride);

void gsl_vector_int_free (gsl_vector_int * v);

/* Views */

_gsl_vector_int_view 

gsl_vector_int_view_array (int *v, size_t n);

_gsl_vector_int_view 

gsl_vector_int_view_array_with_stride (int *base,

                                         size_t stride,

                                         size_t n);

_gsl_vector_int_const_view 

gsl_vector_int_const_view_array (const int *v, size_t n);

_gsl_vector_int_const_view 

gsl_vector_int_const_view_array_with_stride (const int *base,

                                               size_t stride,

                                               size_t n);

_gsl_vector_int_view 

gsl_vector_int_subvector (gsl_vector_int *v, 

                            size_t i, 

                            size_t n);

_gsl_vector_int_view 

gsl_vector_int_subvector_with_stride (gsl_vector_int *v, 

                                        size_t i,

                                        size_t stride,

                                        size_t n);

_gsl_vector_int_const_view 

gsl_vector_int_const_subvector (const gsl_vector_int *v, 

                                  size_t i, 

                                  size_t n);

_gsl_vector_int_const_view 

gsl_vector_int_const_subvector_with_stride (const gsl_vector_int *v, 

                                              size_t i, 

                                              size_t stride,

                                              size_t n);

/* Operations */

void gsl_vector_int_set_zero (gsl_vector_int * v);

void gsl_vector_int_set_all (gsl_vector_int * v, int x);

int gsl_vector_int_set_basis (gsl_vector_int * v, size_t i);

int gsl_vector_int_fread (FILE * stream, gsl_vector_int * v);

int gsl_vector_int_fwrite (FILE * stream, const gsl_vector_int * v);

int gsl_vector_int_fscanf (FILE * stream, gsl_vector_int * v);

int gsl_vector_int_fprintf (FILE * stream, const gsl_vector_int * v,

                              const char *format);

int gsl_vector_int_memcpy (gsl_vector_int * dest, const gsl_vector_int * src);

int gsl_vector_int_reverse (gsl_vector_int * v);

int gsl_vector_int_swap (gsl_vector_int * v, gsl_vector_int * w);

int gsl_vector_int_swap_elements (gsl_vector_int * v, const size_t i, const size_t j);

int gsl_vector_int_max (const gsl_vector_int * v);

int gsl_vector_int_min (const gsl_vector_int * v);

void gsl_vector_int_minmax (const gsl_vector_int * v, int * min_out, int * max_out);

size_t gsl_vector_int_max_index (const gsl_vector_int * v);

size_t gsl_vector_int_min_index (const gsl_vector_int * v);

void gsl_vector_int_minmax_index (const gsl_vector_int * v, size_t * imin, size_t * imax);

int gsl_vector_int_add (gsl_vector_int * a, const gsl_vector_int * b);

int gsl_vector_int_sub (gsl_vector_int * a, const gsl_vector_int * b);

int gsl_vector_int_mul (gsl_vector_int * a, const gsl_vector_int * b);

int gsl_vector_int_div (gsl_vector_int * a, const gsl_vector_int * b);

int gsl_vector_int_scale (gsl_vector_int * a, const double x);

int gsl_vector_int_add_constant (gsl_vector_int * a, const double x);

int gsl_vector_int_equal (const gsl_vector_int * u, 

                            const gsl_vector_int * v);

int gsl_vector_int_isnull (const gsl_vector_int * v);

int gsl_vector_int_ispos (const gsl_vector_int * v);

int gsl_vector_int_isneg (const gsl_vector_int * v);

int gsl_vector_int_isnonneg (const gsl_vector_int * v);

INLINE_DECL int gsl_vector_int_get (const gsl_vector_int * v, const size_t i);

INLINE_DECL void gsl_vector_int_set (gsl_vector_int * v, const size_t i, int x);

INLINE_DECL int * gsl_vector_int_ptr (gsl_vector_int * v, const size_t i);

INLINE_DECL const int * gsl_vector_int_const_ptr (const gsl_vector_int * v, const size_t i);

#ifdef HAVE_INLINE

INLINE_FUN

int

gsl_vector_int_get (const gsl_vector_int * v, const size_t i)

{

#if GSL_RANGE_CHECK

  if (GSL_RANGE_COND(i >= v->size))

    {

      GSL_ERROR_VAL ("index out of range", GSL_EINVAL, 0);

    }

#endif

  return v->data[i * v->stride];

}

INLINE_FUN

void

gsl_vector_int_set (gsl_vector_int * v, const size_t i, int x)

{

#if GSL_RANGE_CHECK

  if (GSL_RANGE_COND(i >= v->size))

    {

      GSL_ERROR_VOID ("index out of range", GSL_EINVAL);

    }

#endif

  v->data[i * v->stride] = x;

}

INLINE_FUN

int *

gsl_vector_int_ptr (gsl_vector_int * v, const size_t i)

{

#if GSL_RANGE_CHECK

  if (GSL_RANGE_COND(i >= v->size))

    {

      GSL_ERROR_NULL ("index out of range", GSL_EINVAL);

    }

#endif

  return (int *) (v->data + i * v->stride);

}

INLINE_FUN

const int *

gsl_vector_int_const_ptr (const gsl_vector_int * v, const size_t i)

{

#if GSL_RANGE_CHECK

  if (GSL_RANGE_COND(i >= v->size))

    {

      GSL_ERROR_NULL ("index out of range", GSL_EINVAL);

    }

#endif

  return (const int *) (v->data + i * v->stride);

}

#endif /* HAVE_INLINE */

__END_DECLS

#endif /* __GSL_VECTOR_INT_H__ */