char *test_heapsort() { return run_sort_test(DArray_heapsort, "heapsort"); }
char *test_mergesort() { return run_sort_test(DArray_mergesort, "mergesort"); }
char *test_qsort() { return run_sort_test(DArray_qsort, "qsort"); }
char *test_mergesort() { printf("now in merge sort\n"); return run_sort_test(DArray_mergesort , "mergesort"); }
char *test_heapsort() { printf("now in heapsort\n"); return run_sort_test(DArray_heapsort , "heapsort"); }
char *test_qsort() { printf("now in quitcksort\n"); return run_sort_test(DArray_qsort , "qsort"); }
char *test_lcthw_mergesort() { return run_sort_test(DArray_lcthw_mergesort, "lcthw_mergesort"); }