hash: fix examples so they compile.

diff --git a/ccan/hash/hash.h b/ccan/hash/hash.h
index 1f8ccbf06212e3b3b7b98ce32ee07659c717a8df..189c9438c8dfdccd4ba12480b4afa808f2d7f248 100644 (file)
--- a/ccan/hash/hash.h
+++ b/ccan/hash/hash.h
@@ -29,9 +29,10 @@
  * See also: hash64, hash_stable.
  *
  * Example:
- *     #include "hash/hash.h"
+ *     #include <ccan/hash/hash.h>
  *     #include <err.h>
  *     #include <stdio.h>
+ *     #include <string.h>
  *
  *     // Simple demonstration: idential strings will have the same hash, but
  *     // two different strings will probably not.
@@ -74,9 +75,10 @@
  *     hash64_stable
  *
  * Example:
- *     #include "hash/hash.h"
+ *     #include <ccan/hash/hash.h>
  *     #include <err.h>
  *     #include <stdio.h>
+ *     #include <string.h>
  *
  *     int main(int argc, char *argv[])
  *     {
@@ -159,6 +161,7 @@ static inline uint32_t hash_string(const char *string)
  *     #include <ccan/hash/hash.h>
  *     #include <err.h>
  *     #include <stdio.h>
+ *     #include <string.h>
  *
  *     // Simple demonstration: idential strings will have the same hash, but
  *     // two different strings will probably not.
@@ -204,6 +207,7 @@ static inline uint32_t hash_string(const char *string)
  *     #include <ccan/hash/hash.h>
  *     #include <err.h>
  *     #include <stdio.h>
+ *     #include <string.h>
  *
  *     int main(int argc, char *argv[])
  *     {
@@ -263,7 +267,7 @@ uint64_t hash64_stable_8(const void *key, size_t n, uint64_t base);
  * network or saved to disk).
  *
  * Example:
- *     #include "hash/hash.h"
+ *     #include <ccan/hash/hash.h>
  *
  *     // Code to keep track of memory regions.
  *     struct region {
@@ -276,17 +280,17 @@ uint64_t hash64_stable_8(const void *key, size_t n, uint64_t base);
  *
  *     static void add_region(struct region *r)
  *     {
- *             unsigned int h = hash_pointer(r->start);
+ *             unsigned int h = hash_pointer(r->start, 0);
  *
  *             r->chain = region_hash[h];
  *             region_hash[h] = r->chain;
  *     }
  *
- *     static void find_region(const void *start)
+ *     static struct region *find_region(const void *start)
  *     {
  *             struct region *r;
  *
- *             for (r = region_hash[hash_pointer(start)]; r; r = r->chain)
+ *             for (r = region_hash[hash_pointer(start, 0)]; r; r = r->chain)
  *                     if (r->start == start)
  *                             return r;
  *             return NULL;