static VALUE rb_gsl_combination_valid2(VALUE obj)
{
gsl_combination *c = NULL;
Data_Get_Struct(obj, gsl_combination, c);
if(gsl_combination_valid(c)) return Qtrue;
else return Qfalse;
}
CAMLprim value ml_gsl_combination_valid(value vc)
{
int r;
gsl_combination c;
combi_of_val(&c, vc);
r = gsl_combination_valid(&c);
return Val_not(Val_bool(r));
}
static VALUE rb_gsl_combination_valid(VALUE obj)
{
gsl_combination *c = NULL;
Data_Get_Struct(obj, gsl_combination, c);
return INT2FIX(gsl_combination_valid(c));
}
int
main (void)
{
size_t i, j;
int status = 0, s;
gsl_combination * c ;
gsl_ieee_env_setup ();
c = gsl_combination_alloc (6,3);
/* Test combinations in forward order */
gsl_combination_init_first (c);
i = 0;
do
{
if ( i >= 20 )
{
status = 1;
break;
}
for (j = 0; j < 3; j++)
{
status |= (c->data[j] != c63[i][j]);
}
{
int s1 = gsl_combination_valid (c);
gsl_test (s1, "gsl_combination_valid (%u)", i);
}
i++;
}
while (gsl_combination_next(c) == GSL_SUCCESS);
gsl_test(status, "gsl_combination_next, 6 choose 3 combination, 20 steps");
gsl_combination_next(c);
gsl_combination_next(c);
gsl_combination_next(c);
for (j = 0; j < 3; j++)
{
status |= (c->data[j] != c63[19][j]);
}
gsl_test(status, "gsl_combination_next on the last combination");
{
int s1 = gsl_combination_valid (c);
gsl_test (s1, "gsl_combination_valid on the last combination");
}
{
gsl_combination * d = gsl_combination_alloc (6,3);
gsl_combination_memcpy (d, c);
status = 0;
for (j = 0; j < 3; j++)
{
status |= (d->data[j] != c->data[j]);
}
gsl_test (status, "gsl_combination_memcpy, 6 choose 3 combination");
gsl_combination_free(d);
}
/* Now test combinations in reverse order */
gsl_combination_init_last (c);
i = 20;
do
{
if ( i == 0 )
{
status = 1;
break;
}
i--;
for (j = 0; j < 3; j++)
{
status |= (c->data[j] != c63[i][j]);
}
{
int s1 = gsl_combination_valid (c);
gsl_test (s1, "gsl_combination_valid (%u)", i);
}
}
while (gsl_combination_prev(c) == GSL_SUCCESS);
gsl_test(status, "gsl_combination_prev, 6 choose 3 combination, 20 steps");
gsl_combination_prev(c);
gsl_combination_prev(c);
gsl_combination_prev(c);
for (j = 0; j < 3; j++)
{
status |= (c->data[j] != c63[0][j]);
}
gsl_test(status, "gsl_combination_prev on the first combination");
{
int s1 = gsl_combination_valid (c);
gsl_test (s1, "gsl_combination_valid on the first combination");
}
{
gsl_combination * d = gsl_combination_alloc (6,3);
gsl_combination_memcpy (d, c);
status = 0;
for (j = 0; j < 3; j++)
{
status |= (d->data[j] != c->data[j]);
}
gsl_test (status, "gsl_combination_memcpy, 6 choose 3 combination");
gsl_combination_free(d);
}
gsl_combination_free (c);
c = gsl_combination_calloc(7, 0);
/* should return GSL_FAILURE every time */
status |= (gsl_combination_next(c) != GSL_FAILURE);
status |= (gsl_combination_next(c) != GSL_FAILURE);
status |= (gsl_combination_prev(c) != GSL_FAILURE);
status |= (gsl_combination_prev(c) != GSL_FAILURE);
gsl_test(status, "gsl_combination 7 choose 0");
gsl_combination_free (c);
c = gsl_combination_calloc(7, 7);
/* should return GSL_FAILURE every time */
for(j = 0; j < 7; j++)
{
status |= (gsl_combination_get(c, j) != j);
}
status |= (gsl_combination_next(c) != GSL_FAILURE);
for(j = 0; j < 7; j++)
{
status |= (gsl_combination_get(c, j) != j);
}
status |= (gsl_combination_next(c) != GSL_FAILURE);
for(j = 0; j < 7; j++)
{
status |= (gsl_combination_get(c, j) != j);
}
status |= (gsl_combination_prev(c) != GSL_FAILURE);
for(j = 0; j < 7; j++)
{
status |= (gsl_combination_get(c, j) != j);
}
status |= (gsl_combination_prev(c) != GSL_FAILURE);
for(j = 0; j < 7; j++)
{
status |= (gsl_combination_get(c, j) != j);
}
gsl_test(status, "gsl_combination 7 choose 7");
gsl_combination_free (c);
c = gsl_combination_calloc(6, 3);
gsl_set_error_handler (&my_error_handler);
c->data[0] = 1;
c->data[1] = 1;
c->data[2] = 2;
s = gsl_combination_valid (c);
gsl_test (!s, "gsl_combination_valid on an invalid combination (1,1,2)");
c->data[0] = 2;
c->data[1] = 1;
c->data[2] = 0;
s = gsl_combination_valid (c);
gsl_test (!s, "gsl_combination_valid on an invalid combination (2,1,0)");
c->data[0] = 1;
c->data[1] = 2;
c->data[2] = 0;
s = gsl_combination_valid (c);
gsl_test (!s, "gsl_combination_valid on an invalid combination (1,2,0)");
{
gsl_combination * d = gsl_combination_alloc (6,4);
int s = gsl_combination_memcpy (d, c);
gsl_test (!s, "gsl_combination_memcpy, (6,4) vs (6,3)");
gsl_combination_free(d);
}
{
gsl_combination * d = gsl_combination_alloc (7,3);
int s = gsl_combination_memcpy (d, c);
gsl_test (!s, "gsl_combination_memcpy, (7,3) vs (6,3)");
gsl_combination_free(d);
}
{
gsl_combination * d = gsl_combination_alloc (7,2);
int s = gsl_combination_memcpy (d, c);
gsl_test (!s, "gsl_combination_memcpy, (7,2) vs (6,3)");
gsl_combination_free(d);
}
gsl_combination_free (c);
exit (gsl_test_summary());
}