47 #define SWAPINIT(a, es) swaptype = ((char *)a - (char *)0) % sizeof(long) || \  argument
51 swapfunc(char *a, char *b, int n, int swaptype)  in swapfunc()  argument
54 		swapcode(long, a, b, n)  in swapfunc()
56 		swapcode(char, a, b, n)  in swapfunc()
59 #define swap(a, b)					\  argument
61 		long t = *(long *)(a);			\
62 		*(long *)(a) = *(long *)(b);		\
65 		swapfunc(a, b, es, swaptype)
67 #define vecswap(a, b, n) 	if ((n) > 0) swapfunc(a, b, n, swaptype)  argument
70 med3(char *a, char *b, char *c, int (*cmp)(const void *, const void *))  in med3()  argument
72 	return cmp(a, b) < 0 ?  in med3()
73 	       (cmp(b, c) < 0 ? b : (cmp(a, c) < 0 ? c : a ))  in med3()
74               :(cmp(b, c) > 0 ? b : (cmp(a, c) < 0 ? a : c ));  in med3()
82 	register char *a = aa;  in qsort()  local
84 loop:	SWAPINIT(a, es);  in qsort()
87 		for (pm = (char *)a + es; pm < (char *) a + n * es; pm += es)  in qsort()
88 			for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0;  in qsort()
93 	pm = (char *)a + (n / 2) * es;  in qsort()
95 		pl = (char *)a;  in qsort()
96 		pn = (char *)a + (n - 1) * es;  in qsort()
105 	swap(a, pm);  in qsort()
106 	pa = pb = (char *)a + es;  in qsort()
108 	pc = pd = (char *)a + (n - 1) * es;  in qsort()
110 		while (pb <= pc && (r = cmp(pb, a)) <= 0) {  in qsort()
118 		while (pb <= pc && (r = cmp(pc, a)) >= 0) {  in qsort()
134 		for (pm = (char *) a + es; pm < (char *) a + n * es; pm += es)  in qsort()
135 			for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0;   in qsort()
141 	pn = (char *)a + n * es;  in qsort()
142 	r = min(pa - (char *)a, pb - pa);  in qsort()
143 	vecswap(a, pb - r, r);  in qsort()
147 		qsort(a, r / es, es, cmp);  in qsort()
150 		a = pn - r;  in qsort()