move some util tests from comments into separate files

[nlopt.git] / util / sobolseq.c

diff --git a/util/sobolseq.c b/util/sobolseq.c
index b3bee05f9f8da363c09312588dd5bd36b64b78ba..b0eb82203f043fa0df5baf01dc47c3644f24fdb5 100644 (file)
--- a/util/sobolseq.c
+++ b/util/sobolseq.c
@@ -243,57 +243,3 @@ void nlopt_sobol_skip(nlopt_sobol s, unsigned n, double *x)
          while (k-- > 0) sobol_gen(s, x);
      }
 }
-
-/************************************************************************/
-
-/* compile with -DSOBOLSEQ_TEST for test program */
-#ifdef SOBOLSEQ_TEST
-#include <stdio.h>
-#include <time.h>
-
-/* test integrand from Joe and Kuo paper ... integrates to 1 */
-static double testfunc(unsigned n, const double *x)
-{
-     double f = 1;
-     unsigned j;
-     for (j = 1; j <= n; ++j) {
-         double cj = pow((double) j, 0.3333333333333333333);
-         f *= (fabs(4*x[j-1] - 2) + cj) / (1 + cj);
-     }
-     return f;
-}
-
-int main(int argc, char **argv)
-{
-     unsigned n, j, i, sdim;
-     static double x[MAXDIM];
-     double testint_sobol = 0, testint_rand = 0;
-     nlopt_sobol s;
-     if (argc < 3) { 
-         fprintf(stderr, "Usage: %s <sdim> <ngen>\n", argv[0]);
-         return 1;
-     }
-     nlopt_init_genrand(time(NULL));
-     sdim = atoi(argv[1]);
-     s = nlopt_sobol_create(sdim);
-     n = atoi(argv[2]);
-     nlopt_sobol_skip(s, n, x);
-     for (j = 1; j <= n; ++j) {
-         nlopt_sobol_next01(s, x);
-         testint_sobol += testfunc(sdim, x);
-         if (j < 100) {
-              printf("x[%d]: %g", j, x[0]);
-              for (i = 1; i < sdim; ++i) printf(", %g", x[i]);
-              printf("\n");
-         }
-         for (i = 0; i < sdim; ++i) x[i] = nlopt_urand(0.,1.);
-         testint_rand += testfunc(sdim, x);
-     }
-     nlopt_sobol_destroy(s);
-     printf("Test integral = %g using Sobol, %g using pseudorandom.\n",
-           testint_sobol / n, testint_rand / n);
-     printf("        error = %g using Sobol, %g using pseudorandom.\n",
-           testint_sobol / n - 1, testint_rand / n - 1);
-     return 0;
-}
-#endif