2 #include <gsl/gsl_combination.h>
10 printf ("All subsets of {0,1,2,3} by size:\n") ;
11 for (i = 0; i <= 4; i++)
13 c = gsl_combination_calloc (4, i);
17 gsl_combination_fprintf (stdout, c, " %u");
20 while (gsl_combination_next (c) == GSL_SUCCESS);
21 gsl_combination_free (c);