Changeset 1691 for branches/FREEBSD/src

Timestamp:

Dec 3, 2004, 4:59:13 AM (21 years ago)

Author:

bird

Message:

FreeBSD 5.3 libc sources.

Location:

branches/FREEBSD/src/emx/src/lib/bsd/stdlib

Files:

• radixsort.c (modified) (2 diffs, 1 prop)
• random.c (modified) (16 diffs, 1 prop)

branches/FREEBSD/src/emx/src/lib/bsd/stdlib/radixsort.c

@@ -39 +39 @@
 #endif /* LIBC_SCCS and not lint */
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/lib/libc/stdlib/radixsort.c,v 1.6 2002/03/22 09:18:34 obrien Exp $");
+__FBSDID("$FreeBSD: src/lib/libc/stdlib/radixsort.c,v 1.7 2003/11/11 04:59:23 kientzle Exp $");
 
 /*
@@ -178 +178 @@
 
                 /*
+                 * Special case: if all strings have the same
+                 * character at position i, move on to the next
+                 * character.
+                 */
+                if (nc == 1 && count[bmin] == n) {
+                        push(a, n, i+1);
+                        nc = count[bmin] = 0;
+                        continue;
+                }
+
+                /*
                  * Set top[]; push incompletely sorted bins onto stack.
                  * top[] = pointers to last out-of-place element in bins.

branches/FREEBSD/src/emx/src/lib/bsd/stdlib/random.c

@@ -36 +36 @@
 #endif /* LIBC_SCCS and not lint */
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/lib/libc/stdlib/random.c,v 1.22 2003/02/04 11:24:08 ache Exp $");
+__FBSDID("$FreeBSD: src/lib/libc/stdlib/random.c,v 1.24 2004/01/20 03:02:18 das Exp $");
 
 #include "namespace.h"
 #include <sys/time.h>          /* for srandomdev() */
 #include <fcntl.h>             /* for srandomdev() */
+#include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -62 +63 @@
  * 32 bytes, a simple linear congruential R.N.G. is used.
  *
- * Internally, the state information is treated as an array of longs; the
+ * Internally, the state information is treated as an array of uint32_t's; the
  * zeroeth element of the array is the type of R.N.G. being used (small
  * integer); the remainder of the array is the state information for the
- * R.N.G.  Thus, 32 bytes of state information will give 7 longs worth of
+ * R.N.G.  Thus, 32 bytes of state information will give 7 ints worth of
  * state information, which will allow a degree seven polynomial.  (Note:
  * the zeroeth word of state information also has some other information
@@ -143 +144 @@
 #define MAX_TYPES       5               /* max number of types above */
 
-#define NSHUFF 100      /* to drop part of seed -> 1st value correlation */
-
-static long degrees[MAX_TYPES] =        { DEG_0, DEG_1, DEG_2, DEG_3, DEG_4 };
-static long seps [MAX_TYPES] =  { SEP_0, SEP_1, SEP_2, SEP_3, SEP_4 };
+#ifdef  USE_WEAK_SEEDING
+#define NSHUFF 0
+#else   /* !USE_WEAK_SEEDING */
+#define NSHUFF 50       /* to drop some "seed -> 1st value" linearity */
+#endif  /* !USE_WEAK_SEEDING */
+
+static const int degrees[MAX_TYPES] =   { DEG_0, DEG_1, DEG_2, DEG_3, DEG_4 };
+static const int seps [MAX_TYPES] =     { SEP_0, SEP_1, SEP_2, SEP_3, SEP_4 };
 
 /*
@@ -162 +167 @@
  */
 
-static long randtbl[DEG_3 + 1] = {
+static uint32_t randtbl[DEG_3 + 1] = {
         TYPE_3,
 #ifdef  USE_WEAK_SEEDING
@@ -197 +202 @@
  * to point to randtbl[1] (as explained below).
  */
-static long *fptr = &randtbl[SEP_3 + 1];
-static long *rptr = &randtbl[1];
+static uint32_t *fptr = &randtbl[SEP_3 + 1];
+static uint32_t *rptr = &randtbl[1];
 
 /*
@@ -210 +215 @@
  * the last element to see if the front and rear pointers have wrapped.
  */
-static long *state = &randtbl[1];
-static long rand_type = TYPE_3;
-static long rand_deg = DEG_3;
-static long rand_sep = SEP_3;
-static long *end_ptr = &randtbl[DEG_3 + 1];
-
-static inline long good_rand(long);
-
-static inline long good_rand (x)
-        long x;
+static uint32_t *state = &randtbl[1];
+static int rand_type = TYPE_3;
+static int rand_deg = DEG_3;
+static int rand_sep = SEP_3;
+static uint32_t *end_ptr = &randtbl[DEG_3 + 1];
+
+static inline uint32_t good_rand(int32_t);
+
+static inline uint32_t good_rand (x)
+        int32_t x;
 {
 #ifdef  USE_WEAK_SEEDING
@@ -237 +242 @@
  * October 1988, p. 1195.
  */
-        long hi, lo;
+        int32_t hi, lo;
 
         /* Can't be initialized with 0, so use another value. */
@@ -267 +272 @@
         unsigned long x;
 {
-        long i, lim;
-
-        state[0] = x;
+        int i, lim;
+
+        state[0] = (uint32_t)x;
         if (rand_type == TYPE_0)
                 lim = NSHUFF;
@@ -347 +352 @@
  * Returns a pointer to the old state.
  *
- * Note: The Sparc platform requires that arg_state begin on a long
+ * Note: The Sparc platform requires that arg_state begin on an int
  * word boundary; otherwise a bus error will occur. Even so, lint will
  * complain about mis-alignment, but you should disregard these messages.
@@ -358 +363 @@
 {
         char *ostate = (char *)(&state[-1]);
-        long *long_arg_state = (long *) arg_state;
+        uint32_t *int_arg_state = (uint32_t *)arg_state;
 
         if (rand_type == TYPE_0)
@@ -390 +395 @@
                 rand_sep = SEP_4;
         }
-        state = (long *) (long_arg_state + 1); /* first location */
+        state = int_arg_state + 1; /* first location */
         end_ptr = &state[rand_deg];     /* must set end_ptr before srandom */
         srandom(seed);
         if (rand_type == TYPE_0)
-                long_arg_state[0] = rand_type;
+                int_arg_state[0] = rand_type;
         else
-                long_arg_state[0] = MAX_TYPES * (rptr - state) + rand_type;
+                int_arg_state[0] = MAX_TYPES * (rptr - state) + rand_type;
         return(ostate);
 }
@@ -415 +420 @@
  * Returns a pointer to the old state information.
  *
- * Note: The Sparc platform requires that arg_state begin on a long
+ * Note: The Sparc platform requires that arg_state begin on an int
  * word boundary; otherwise a bus error will occur. Even so, lint will
  * complain about mis-alignment, but you should disregard these messages.
@@ -423 +428 @@
         char *arg_state;                /* pointer to state array */
 {
-        long *new_state = (long *) arg_state;
-        long type = new_state[0] % MAX_TYPES;
-        long rear = new_state[0] / MAX_TYPES;
+        uint32_t *new_state = (uint32_t *)arg_state;
+        uint32_t type = new_state[0] % MAX_TYPES;
+        uint32_t rear = new_state[0] / MAX_TYPES;
         char *ostate = (char *)(&state[-1]);
 
@@ -446 +451 @@
                     "random: state info corrupted; not changed.\n");
         }
-        state = (long *) (new_state + 1);
+        state = new_state + 1;
         if (rand_type != TYPE_0) {
                 rptr = &state[rear];
@@ -475 +480 @@
 random()
 {
-        long i;
-        long *f, *r;
+        uint32_t i;
+        uint32_t *f, *r;
 
         if (rand_type == TYPE_0) {
@@ -498 +503 @@
                 fptr = f; rptr = r;
         }
-        return(i);
+        return((long)i);
 }