```/* nag_quasi_rand_uniform (g05ymc) Example Program.
*
* Copyright 2014 Numerical Algorithms Group.
*
* Mark 9, 2009.
*/
/* Pre-processor includes */
#include <stdio.h>
#include <math.h>
#include <nag.h>
#include <nag_stdlib.h>
#include <nagg05.h>
#define QUAS(I, J) quas[(order == Nag_ColMajor)?(J*pdquas + I):(I*pdquas + J)]

int main(void)
{
/* Integer scalar and array declarations */
Integer                  exit_status = 0;
Integer                  liref, d, i, j, q_size;
Integer                  *iref = 0;
Integer                  pdquas;

/* NAG structures */
NagError                 fail;

/* Double scalar and array declarations */
double                   sum, tmp, vsbl;
double                   *quas = 0;

/* Number of dimensions */
Integer                  idim = 8;

/* Set the sample size */
Integer                  n = 200;

/* Skip the first 1000 variates */
Integer                  iskip = 1000;

/* Use row major order */
Nag_OrderType            order = Nag_RowMajor;

/* Choose the quasi generator */
Nag_QuasiRandom_Sequence genid = Nag_QuasiRandom_Sobol;

/* Initialise the error structure */
INIT_FAIL(fail);

printf("nag_quasi_rand_uniform (g05ymc) Example Program Results\n");

pdquas = (order == Nag_RowMajor)?idim:n;
q_size = (order == Nag_RowMajor)?pdquas * n:pdquas * idim;

/* Calculate the size of the reference vector */
liref = (genid == Nag_QuasiRandom_Faure)?407:32 * idim + 7;

/* Allocate arrays */
if (!(quas = NAG_ALLOC(q_size, double)) ||
!(iref = NAG_ALLOC(liref, Integer)))
{
printf("Allocation failure\n");
exit_status = -1;
goto END;
}

/* Initialise the Sobol generator */
nag_quasi_init(genid, idim, iref, liref, iskip, &fail);
if (fail.code != NE_NOERROR)
{
printf("Error from nag_quasi_init (g05ylc).\n%s\n", fail.message);
exit_status = 1;
goto END;
}

/* Generate n quasi-random variates */
nag_quasi_rand_uniform(order, n, quas, pdquas, iref, &fail);
if (fail.code != NE_NOERROR)
{
printf("Error from nag_quasi_rand_uniform (g05ymc).\n%s\n",
fail.message);
exit_status = 1;
goto END;
}

/* Estimate integral by evaluating function at each variate and summing */
sum = 0.0e0;
for (i = 0; i < n; i++)
{
tmp = 1.0e0;
for (d = 0; d < idim; d++)
tmp *= fabs(4.0e0 * QUAS(i, d) - 2.0e0);
sum += tmp;
}

/* Convert sum to mean value */
vsbl = sum / (double) n;

/* Print the estimated value of the integral */
printf("Value of integral =  %8.4f\n\n", vsbl);

/* Display the first 10 variates used */
printf("First 10 variates\n");
for (i = 0; i < 10; i++)
{
printf(" %3ld ", i + 1);
for (j = 0; j < idim; j++)
printf("%8.4f%s", QUAS(i, j), ((j+1)%20)?" ":"\n");
if (idim%20) printf("\n");
}

END:
NAG_FREE(quas);
NAG_FREE(iref);

return exit_status;
}
```