/* vector/test_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.

 */

void FUNCTION (test, func) (size_t stride, size_t N);

void FUNCTION (test, ops) (size_t stride1, size_t stride2, size_t N);

void FUNCTION (test, file) (size_t stride, size_t N);

void FUNCTION (test, text) (size_t stride, size_t N);

void FUNCTION (test, trap) (size_t stride, size_t N);

TYPE (gsl_vector) * FUNCTION(create, vector) (size_t stride, size_t N);

#define TEST(expr,desc) gsl_test((expr), NAME(gsl_vector) desc " stride=%d, N=%d", stride, N)

#define TEST2(expr,desc) gsl_test((expr), NAME(gsl_vector) desc " stride1=%d, stride2=%d, N=%d", stride1, stride2, N)

TYPE (gsl_vector) *

FUNCTION(create, vector) (size_t stride, size_t N)

{

    TYPE (gsl_vector) * v = FUNCTION (gsl_vector, calloc) (N*stride);

    v->stride = stride;

    v->size = N;

    return v;

}

void

FUNCTION (test, func) (size_t stride, size_t N)

{

  TYPE (gsl_vector) * v0;

  TYPE (gsl_vector) * v;

  QUALIFIED_VIEW(gsl_vector,view) view;

  size_t i, j;

  if (stride == 1) 

    {

      v = FUNCTION (gsl_vector, calloc) (N);

      TEST(v->data == 0, "_calloc pointer");

      TEST(v->size != N, "_calloc size");

      TEST(v->stride != 1, "_calloc stride");

      {

        int status = (FUNCTION(gsl_vector,isnull)(v) != 1);

        TEST (status, "_isnull" DESC " on calloc vector");

        status = (FUNCTION(gsl_vector,ispos)(v) != 0);

        TEST (status, "_ispos" DESC " on calloc vector");

        status = (FUNCTION(gsl_vector,isneg)(v) != 0);

        TEST (status, "_isneg" DESC " on calloc vector");

        status = (FUNCTION(gsl_vector,isnonneg)(v) != 1);

        TEST (status, "_isnonneg" DESC " on calloc vector");

      }

      FUNCTION (gsl_vector, free) (v);      /* free whatever is in v */

    }

  if (stride == 1) 

    {

      v = FUNCTION (gsl_vector, alloc) (N);

      TEST(v->data == 0, "_alloc pointer");

      TEST(v->size != N, "_alloc size");

      TEST(v->stride != 1, "_alloc stride");

      FUNCTION (gsl_vector, free) (v);      /* free whatever is in v */

    }

  if (stride == 1)

    {

      v0 = FUNCTION (gsl_vector, alloc) (N);

      view = FUNCTION (gsl_vector, subvector) (v0, 0, N);

      v = &view.vector;

    }

  else

    {

      v0 = FUNCTION (gsl_vector, alloc) (N * stride);

      for (i = 0; i < N*stride; i++)

        {

          v0->data[i] = i;

        }

      view = FUNCTION (gsl_vector, subvector_with_stride) (v0, 0, stride, N);

      v = &view.vector;

    }

  {

    int status = 0;

    for (i = 0; i < N; i++)

      {

        FUNCTION (gsl_vector, set) (v, i, (ATOMIC) i);

      }

    for (i = 0; i < N; i++)

      {

        if (v->data[i*stride] != (ATOMIC) (i))

          status = 1;

      };

    TEST(status,"_set" DESC " writes into array");

  }

  {

    int status = 0;

    for (i = 0; i < N; i++)

      {

        if (FUNCTION (gsl_vector, get) (v, i) != (ATOMIC) (i))

          status = 1;

      };

    TEST (status, "_get" DESC " reads from array");

  }

  {

    int status = 0;

    for (i = 0; i < N; i++)

      {

        if (FUNCTION (gsl_vector, ptr) (v, i) != v->data + i*stride)

          status = 1;

      };

    TEST (status, "_ptr" DESC " access to array");

  }

  {

    int status = 0;

    for (i = 0; i < N; i++)

      {

        if (FUNCTION (gsl_vector, const_ptr) (v, i) != v->data + i*stride)

          status = 1;

      };

    TEST (status, "_const_ptr" DESC " access to array");

  }

  {

    int status = 0;

    for (i = 0; i < N; i++)

      {

        FUNCTION (gsl_vector, set) (v, i, (ATOMIC) 0);

      }

    status = (FUNCTION(gsl_vector,isnull)(v) != 1);

    TEST (status, "_isnull" DESC " on null vector") ;

    status = (FUNCTION(gsl_vector,ispos)(v) != 0);

    TEST (status, "_ispos" DESC " on null vector") ;

    status = (FUNCTION(gsl_vector,isneg)(v) != 0);

    TEST (status, "_isneg" DESC " on null vector") ;

    status = (FUNCTION(gsl_vector,isnonneg)(v) != 1);

    TEST (status, "_isnonneg" DESC " on null vector") ;

  }

  {

    int status = 0;

    for (i = 0; i < N; i++)

      {

        FUNCTION (gsl_vector, set) (v, i, (ATOMIC) (i % 10));

      }

    status = (FUNCTION(gsl_vector,isnull)(v) != 0);

    TEST (status, "_isnull" DESC " on non-negative vector") ;

    status = (FUNCTION(gsl_vector,ispos)(v) != 0);

    TEST (status, "_ispos" DESC " on non-negative vector") ;

    status = (FUNCTION(gsl_vector,isneg)(v) != 0);

    TEST (status, "_isneg" DESC " on non-negative vector") ;

    status = (FUNCTION(gsl_vector,isnonneg)(v) != 1);

    TEST (status, "_isnonneg" DESC " on non-negative vector") ;

  }

#ifndef UNSIGNED

  {

    int status = 0;

    for (i = 0; i < N; i++)

      {

        ATOMIC vi = (i % 10) - (ATOMIC) 5;

        FUNCTION (gsl_vector, set) (v, i, vi);

      }

    status = (FUNCTION(gsl_vector,isnull)(v) != 0);

    TEST (status, "_isnull" DESC " on mixed vector") ;

    status = (FUNCTION(gsl_vector,ispos)(v) != 0);

    TEST (status, "_ispos" DESC " on mixed vector") ;

    status = (FUNCTION(gsl_vector,isneg)(v) != 0);

    TEST (status, "_isneg" DESC " on mixed vector") ;

    status = (FUNCTION(gsl_vector,isnonneg)(v) != 0);

    TEST (status, "_isnonneg" DESC " on mixed vector") ;

  }

  {

    int status = 0;

    for (i = 0; i < N; i++)

      {

        FUNCTION (gsl_vector, set) (v, i, -(ATOMIC) (i % 10));

      }

    status = (FUNCTION(gsl_vector,isnull)(v) != 0);

    TEST (status, "_isnull" DESC " on non-positive vector") ;

    status = (FUNCTION(gsl_vector,ispos)(v) != 0);

    TEST (status, "_ispos" DESC " on non-positive vector") ;

    status = (FUNCTION(gsl_vector,isneg)(v) != 0);

    TEST (status, "_isneg" DESC " on non-positive non-null vector") ;

    status = (FUNCTION(gsl_vector,isnonneg)(v) != 0);

    TEST (status, "_isnonneg" DESC " on non-positive non-null vector") ;

  }

#endif

  {

    int status = 0;

    for (i = 0; i < N; i++)

      {

        FUNCTION (gsl_vector, set) (v, i, (ATOMIC) (i % 10 + 1));

      }

    status = (FUNCTION(gsl_vector,isnull)(v) != 0);

    TEST (status, "_isnull" DESC " on positive vector") ;

    status = (FUNCTION(gsl_vector,ispos)(v) != 1);

    TEST (status, "_ispos" DESC " on positive vector") ;

    status = (FUNCTION(gsl_vector,isneg)(v) != 0);

    TEST (status, "_isneg" DESC " on positive vector") ;

    status = (FUNCTION(gsl_vector,isnonneg)(v) != 1);

    TEST (status, "_isnonneg" DESC " on positive vector") ;

  }

#if (!defined(UNSIGNED) && !defined(BASE_CHAR))

  {

    int status = 0;

    for (i = 0; i < N; i++)

      {

        FUNCTION (gsl_vector, set) (v, i, -(ATOMIC) (i % 10 + 1));

      }

    status = (FUNCTION(gsl_vector,isnull)(v) != 0);

    TEST (status, "_isnull" DESC " on negative vector") ;

    status = (FUNCTION(gsl_vector,ispos)(v) != 0);

    TEST (status, "_ispos" DESC " on negative vector") ;

    status = (FUNCTION(gsl_vector,isneg)(v) != 1);

    TEST (status, "_isneg" DESC " on negative vector") ;

    status = (FUNCTION(gsl_vector,isnonneg)(v) != 0);

    TEST (status, "_isnonneg" DESC " on negative vector") ;

  }

#endif

  {

    int status = 0;

    FUNCTION (gsl_vector, set_zero) (v);

    for (i = 0; i < N; i++)

      {

        if (FUNCTION (gsl_vector, get) (v, i) != (ATOMIC)0)

          status = 1;

      };

    TEST (status, "_setzero" DESC " on non-null vector") ;

  }

  {

    int status = 0;

    FUNCTION (gsl_vector, set_all) (v, (ATOMIC)27);

    for (i = 0; i < N; i++)

      {

        if (FUNCTION (gsl_vector, get) (v, i) != (ATOMIC) (27))

          status = 1;

      };

    TEST (status, "_setall" DESC " to non-zero value") ;

  }

  {

    int status = 0;

    for (i = 0; i < N; i++)

      {

        FUNCTION (gsl_vector, set_basis) (v, i);

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

          {

            if (i == j)

              {

                if (FUNCTION (gsl_vector, get) (v, j) != (ATOMIC)1)

                  status = 1 ;

              }

            else 

              {

                if (FUNCTION (gsl_vector, get) (v, j) != (ATOMIC)(0))

                  status = 1;

              }

          };

      }

    TEST (status, "_setbasis" DESC " over range") ;

  }

  {

    int status = 0;

    for (i = 0; i < N; i++)

      {

        FUNCTION (gsl_vector, set) (v, i, (ATOMIC) i);

      }

    FUNCTION (gsl_vector, scale) (v, 2.0);

    for (i = 0; i < N; i++)

      {

        if (FUNCTION (gsl_vector, get) (v, i) != (ATOMIC) ((ATOMIC)i*(ATOMIC)2.0))

          status = 1;

      };

    TEST (status, "_scale" DESC " by 2") ;

  }

  {

    int status = 0;

    FUNCTION (gsl_vector, add_constant) (v, (ATOMIC)7);

    for (i = 0; i < N; i++)

      {

        if (FUNCTION (gsl_vector, get) (v, i) != (ATOMIC) ((ATOMIC)i*(ATOMIC)2.0 + (ATOMIC)7))

          status = 1;

      };

    TEST (status, "_add_constant" DESC) ;

  }

  {

    int status = 0;

    for (i = 0; i < N; i++)

      {

        FUNCTION (gsl_vector, set) (v, i, (ATOMIC) i);

      }

    FUNCTION (gsl_vector,swap_elements) (v, 2, 5) ;

    status = (FUNCTION(gsl_vector,get)(v,2) != 5) ;

    status |= (FUNCTION(gsl_vector,get)(v,5) != 2) ;

    FUNCTION (gsl_vector,swap_elements) (v, 2, 5) ;

    status |= (FUNCTION(gsl_vector,get)(v,2) != 2) ;

    status |= (FUNCTION(gsl_vector,get)(v,5) != 5) ;

    TEST (status, "_swap_elements" DESC " (2,5)") ;

  }

  {

    int status = 0;

    FUNCTION (gsl_vector,reverse) (v) ;

    for (i = 0; i < N; i++)

      {

        status |= (FUNCTION (gsl_vector, get) (v, i) !=  (ATOMIC) (N - i - 1));

      }

    TEST (status, "_reverse" DESC " reverses elements") ;

  }

  {

    int status = 0;

    QUALIFIED_VIEW(gsl_vector,view) v1 = FUNCTION(gsl_vector, view_array) (v->data, N*stride);

    for (i = 0; i < N; i++)

      {

        if (FUNCTION (gsl_vector, get) (&v1.vector, i*stride) != FUNCTION (gsl_vector, get) (v, i)) 

          status = 1;

      };

    TEST (status, "_view_array" DESC);

  }

  {

    int status = 0;

    QUALIFIED_VIEW(gsl_vector,view) v1 = FUNCTION(gsl_vector, view_array_with_stride) (v->data, stride, N*stride);

    for (i = 0; i < N; i++)

      {

        if (FUNCTION (gsl_vector, get) (&v1.vector, i) != FUNCTION (gsl_vector, get) (v, i)) 

          status = 1;

      };

    TEST (status, "_view_array_with_stride" DESC);

  }

  {

    int status = 0;

    QUALIFIED_VIEW(gsl_vector,view) v1 = FUNCTION(gsl_vector, subvector) (v, N/3, N/2);

    for (i = 0; i < N/2; i++)

      {

        if (FUNCTION (gsl_vector, get) (&v1.vector, i) != FUNCTION (gsl_vector, get) (v, (N/3) + i)) 

          status = 1;

      };

    TEST (status, "_view_subvector" DESC);

  }

  {

    int status = 0;

    QUALIFIED_VIEW(gsl_vector,view) v1 = FUNCTION(gsl_vector, subvector_with_stride) (v, N/5, 3, N/4);

    for (i = 0; i < N/4; i++)

      {

        if (FUNCTION (gsl_vector, get) (&v1.vector, i) != FUNCTION (gsl_vector, get) (v, (N/5) + 3*i)) 

          status = 1;

      };

    TEST (status, "_view_subvector_with_stride" DESC);

  }

  {

    BASE exp_max = FUNCTION(gsl_vector,get)(v, 0);

    BASE exp_min = FUNCTION(gsl_vector,get)(v, 0);

    size_t exp_imax = 0, exp_imin = 0;

    for (i = 0; i < N; i++)

      {

        BASE k = FUNCTION(gsl_vector, get) (v, i) ;

        if (k < exp_min) {

          exp_min = FUNCTION(gsl_vector, get) (v, i);

          exp_imin = i;

        }

      }

    for (i = 0; i < N; i++)

      {

        BASE k = FUNCTION(gsl_vector, get) (v, i) ;

        if (k > exp_max) {

          exp_max = FUNCTION(gsl_vector, get) (v, i) ;

          exp_imax = i;

        } 

      }

    {

      BASE max = FUNCTION(gsl_vector, max) (v) ;

      TEST (max != exp_max, "_max returns correct maximum value");

    }

    {

      BASE min = FUNCTION(gsl_vector, min) (v) ;

      TEST (min != exp_min, "_min returns correct minimum value");

    }

    {

      BASE min, max;

      FUNCTION(gsl_vector, minmax) (v, &min, &max;;

      TEST (max != exp_max, "_minmax returns correct maximum value");

      TEST (min != exp_min, "_minmax returns correct minimum value");

    }

    {

      size_t imax =  FUNCTION(gsl_vector, max_index) (v) ;

      TEST (imax != exp_imax, "_max_index returns correct maximum i");

    }

    {

      size_t imin = FUNCTION(gsl_vector, min_index) (v) ;

      TEST (imin != exp_imin, "_min_index returns correct minimum i");

    }

    {

      size_t imin, imax;

      FUNCTION(gsl_vector, minmax_index) (v,  &imin, &imax;;

      TEST (imax != exp_imax, "_minmax_index returns correct maximum i");

      TEST (imin != exp_imin, "_minmax_index returns correct minimum i");

    }

#if FP

    i = N/2;

    FUNCTION(gsl_vector, set) (v, i, GSL_NAN);

    exp_max = GSL_NAN; exp_min = GSL_NAN;

    exp_imax = i; exp_imin = i;

    {

      BASE max = FUNCTION(gsl_vector, max) (v) ;

      gsl_test_abs (max, exp_max, 0, "_max returns correct maximum value for NaN");

    }

    {

      BASE min = FUNCTION(gsl_vector, min) (v) ;

      gsl_test_abs (min, exp_min, 0, "_min returns correct minimum value for NaN");

    }

    {

      BASE min, max;

      FUNCTION(gsl_vector, minmax) (v, &min, &max;;

      gsl_test_abs (max, exp_max, 0, "_minmax returns correct maximum value for NaN");

      gsl_test_abs (min, exp_min, 0, "_minmax returns correct minimum value for NaN");

    }

    {

      size_t imax =  FUNCTION(gsl_vector, max_index) (v) ;

      TEST (imax != exp_imax, "_max_index returns correct maximum i for NaN");

    }

    {

      size_t imin = FUNCTION(gsl_vector, min_index) (v) ;

      TEST (imin != exp_imin, "_min_index returns correct minimum i for NaN");

    }

    {

      size_t imin, imax;

      FUNCTION(gsl_vector, minmax_index) (v,  &imin, &imax;;

      TEST (imax != exp_imax, "_minmax_index returns correct maximum i for NaN");

      TEST (imin != exp_imin, "_minmax_index returns correct minimum i for NaN");

    }

#endif

  }

  FUNCTION (gsl_vector, free) (v0);      /* free whatever is in v */

}

void

FUNCTION (test, ops) (size_t stride1, size_t stride2, size_t N)

{

  size_t i;

  TYPE (gsl_vector) * a = FUNCTION (create, vector) (stride1, N);

  TYPE (gsl_vector) * b = FUNCTION (create, vector) (stride2, N);

  TYPE (gsl_vector) * v = FUNCTION (create, vector) (stride1, N);

  for (i = 0; i < N; i++)

    {

      FUNCTION (gsl_vector, set) (a, i, (BASE)(3 + i));

      FUNCTION (gsl_vector, set) (b, i, (BASE)(3 + 2 * i));

    }

  {

    int status = (FUNCTION(gsl_vector,equal) (a,b) != 0);

    TEST2 (status, "_equal vectors unequal");

  }

  FUNCTION(gsl_vector, memcpy) (v, a);

  {

    int status = (FUNCTION(gsl_vector,equal) (a,v) != 1);

    TEST2 (status, "_equal vectors equal");

  }

  FUNCTION(gsl_vector, add) (v, b);

  {

    int status = 0;

    for (i = 0; i < N; i++)

      {

        BASE r = FUNCTION(gsl_vector,get) (v,i);

        BASE x = FUNCTION(gsl_vector,get) (a,i);

        BASE y = FUNCTION(gsl_vector,get) (b,i);

        BASE z = x + y;

        if (r != z)

          status = 1;

      }

    TEST2 (status, "_add vector addition");

  }

  {

    int status = 0;

    FUNCTION(gsl_vector, swap) (a, b);

    for (i = 0; i < N; i++)

      {

        status |= (FUNCTION (gsl_vector, get) (a, i) != (BASE)(3 + 2 * i));

        status |= (FUNCTION (gsl_vector, get) (b, i) != (BASE)(3 + i));

      }

    FUNCTION(gsl_vector, swap) (a, b);

    for (i = 0; i < N; i++)

      {

        status |= (FUNCTION (gsl_vector, get) (a, i) != (BASE)(3 + i));

        status |= (FUNCTION (gsl_vector, get) (b, i) != (BASE)(3 + 2 * i));

      }

    TEST2 (status, "_swap exchange vectors");

  }

  FUNCTION(gsl_vector, memcpy) (v, a);

  FUNCTION(gsl_vector, sub) (v, b);

  {

    int status = 0;

    for (i = 0; i < N; i++)

      {

        BASE r = FUNCTION(gsl_vector,get) (v,i);

        BASE x = FUNCTION(gsl_vector,get) (a,i);

        BASE y = FUNCTION(gsl_vector,get) (b,i);

        BASE z = x - y;

        if (r != z)

          status = 1;

      }

    TEST2 (status, "_sub vector subtraction");

  }

  FUNCTION(gsl_vector, memcpy) (v, a);

  FUNCTION(gsl_vector, mul) (v, b);

  {

    int status = 0;

    for (i = 0; i < N; i++)

      {

        BASE r = FUNCTION(gsl_vector,get) (v,i);

        BASE x = FUNCTION(gsl_vector,get) (a,i);

        BASE y = FUNCTION(gsl_vector,get) (b,i);

        BASE z = x * y;

        if (r != z)

          status = 1;

      }

    TEST2 (status, "_mul multiplication");

  }

  FUNCTION(gsl_vector, memcpy) (v, a);

  FUNCTION(gsl_vector, div) (v, b);

  {

    int status = 0;

    for (i = 0; i < N; i++)

      {

        BASE r = FUNCTION(gsl_vector,get) (v,i);

        BASE x = FUNCTION(gsl_vector,get) (a,i);

        BASE y = FUNCTION(gsl_vector,get) (b,i);

        BASE z = x / y;

        if (fabs(r - z) > 2 * GSL_FLT_EPSILON * fabs(z))

          status = 1;

      }

    TEST2 (status, "_div division");

  }

  FUNCTION(gsl_vector, free) (a);

  FUNCTION(gsl_vector, free) (b);

  FUNCTION(gsl_vector, free) (v);

}

void

FUNCTION (test, file) (size_t stride, size_t N)

{

  TYPE (gsl_vector) * v = FUNCTION (create, vector) (stride, N);

  TYPE (gsl_vector) * w = FUNCTION (create, vector) (stride, N);

  size_t i;

#ifdef NO_INLINE

  char filename[] = "test_static.dat";

#else

  char filename[] = "test.dat";

#endif

  {

    /* write file */

    FILE *f = fopen(filename, "wb");

    for (i = 0; i < N; i++)

      {

        FUNCTION (gsl_vector, set) (v, i, (ATOMIC) (N - i));

      };

    FUNCTION (gsl_vector, fwrite) (f, v);

    fclose(f);

  }

  {

    /* read file */

    FILE *f = fopen(filename, "rb");

    FUNCTION (gsl_vector, fread) (f, w);

    status = 0;

    for (i = 0; i < N; i++)

      {

        if (w->data[i*stride] != (ATOMIC) (N - i))

          status = 1;

      };

    TEST (status, "_write and read");

    fclose(f);

  }

  FUNCTION (gsl_vector, free) (v);      /* free whatever is in v */

  FUNCTION (gsl_vector, free) (w);      /* free whatever is in w */

}

#if USES_LONGDOUBLE && ! HAVE_PRINTF_LONGDOUBLE

/* skip this test */

#else

void

FUNCTION (test, text) (size_t stride, size_t N)

{

  TYPE (gsl_vector) * v = FUNCTION (create, vector) (stride, N);

  TYPE (gsl_vector) * w = FUNCTION (create, vector) (stride, N);

  size_t i;

#ifdef NO_INLINE

  char filename[] = "test_static.dat";

#else

  char filename[] = "test.dat";

#endif

  {

    /* write file */

    FILE *f = fopen(filename, "w");

    for (i = 0; i < N; i++)

      {

        FUNCTION (gsl_vector, set) (v, i, (ATOMIC) i);

      };

    FUNCTION (gsl_vector, fprintf) (f, v, OUT_FORMAT);

    fclose(f);

  }

  {

    /* read file */

    FILE *f = fopen(filename, "r");

    FUNCTION (gsl_vector, fscanf) (f, w);

    status = 0;

    for (i = 0; i < N; i++)

      {

        if (w->data[i*stride] != (ATOMIC) i)

          status = 1;

      };

    gsl_test (status, NAME (gsl_vector) "_fprintf and fscanf");

    fclose (f);

  }

  FUNCTION (gsl_vector, free) (v);

  FUNCTION (gsl_vector, free) (w);

}

#endif

void

FUNCTION (test, trap) (size_t stride, size_t N)

{

  double x;

  size_t j = 0;

  TYPE (gsl_vector) * v = FUNCTION (create, vector) (stride, N);

  v->size = N;

  v->stride = stride;

  status = 0;

  FUNCTION (gsl_vector, set) (v, j - 1, (ATOMIC)0);

  TEST (!status, "_set traps index below lower bound");

  status = 0;

  FUNCTION (gsl_vector, set) (v, N + 1, (ATOMIC)0);

  TEST (!status, "_set traps index above upper bound");

  status = 0;

  FUNCTION (gsl_vector, set) (v, N, (ATOMIC)0);

  TEST (!status, "_set traps index at upper bound");

  status = 0;

  x = FUNCTION (gsl_vector, get) (v, j - 1);

  TEST (!status, "_get traps index below lower bound");

  TEST (x != 0, "_get returns zero for index below lower bound");

  status = 0;

  x = FUNCTION (gsl_vector, get) (v, N + 1);

  TEST (!status, "_get traps index above upper bound");

  TEST (x != 0, "_get returns zero for index above upper bound");

  status = 0;

  x = FUNCTION (gsl_vector, get) (v, N);

  TEST (!status, "_get traps index at upper bound");

  TEST (x != 0, "_get returns zero for index at upper bound");

  FUNCTION (gsl_vector, free) (v);      /* free whatever is in v */

}

void

FUNCTION (test, alloc_zero_length) (void)

{

  TYPE (gsl_vector) * b = FUNCTION (gsl_vector, alloc) (0);

  gsl_test (b == 0, NAME (gsl_vector) "_alloc permits zero length");

  gsl_test (b->size != 0, NAME (gsl_vector) "_alloc reflects zero length");

  FUNCTION (gsl_vector, free) (b);

}

void

FUNCTION (test, calloc_zero_length) (void)

{

  TYPE (gsl_vector) * b = FUNCTION (gsl_vector, calloc) (0);

  gsl_test (b == 0, NAME (gsl_vector) "_calloc permits zero length");

  gsl_test (b->size != 0, NAME (gsl_vector) "_calloc reflects zero length");

  FUNCTION (gsl_vector, free) (b);

}