step             2100 src/class.c        int cnt = 0, len = Scm_Length(methods), step, i, j;
step             2116 src/class.c        for (step = len/2; step > 0; step /= 2) {
step             2117 src/class.c            for (i=step; i<len; i++) {
step             2118 src/class.c                for (j=i-step; j >= 0; j -= step) {
step             2120 src/class.c                                             SCM_METHOD(array[j+step]),
step             2124 src/class.c                        ScmObj tmp = array[j+step];
step             2125 src/class.c                        array[j+step] = array[j];