base64: fix for unsigned chars (e.g. ARM).

[ccan] / ccan / hash / hash.h

diff --git a/ccan/hash/hash.h b/ccan/hash/hash.h
index 3db75753fb503d5fd9b5284a2e6e0698bdf63b26..217068406af701b74257d4066c5bdf39d41f41e8 100644 (file)
--- a/ccan/hash/hash.h
+++ b/ccan/hash/hash.h
@@ -1,8 +1,9 @@
+/* CC0 (Public domain) - see LICENSE file for details */
 #ifndef CCAN_HASH_H
 #define CCAN_HASH_H
+#include "config.h"
 #include <stdint.h>
 #include <stdlib.h>
-#include "config.h"
 #include <ccan/build_assert/build_assert.h>
 
 /* Stolen mostly from: lookup3.c, by Bob Jenkins, May 2006, Public Domain.
@@ -301,11 +302,11 @@ static inline uint32_t hash_pointer(const void *p, uint32_t base)
        if (sizeof(p) % sizeof(uint32_t) == 0) {
                /* This convoluted union is the right way of aliasing. */
                union {
-                       uint32_t u32[sizeof(p) / sizeof(uint32_t)];
+                       uint32_t a[sizeof(p) / sizeof(uint32_t)];
                        const void *p;
                } u;
                u.p = p;
-               return hash_u32(u.u32, sizeof(p) / sizeof(uint32_t), base);
+               return hash_u32(u.a, sizeof(p) / sizeof(uint32_t), base);
        } else
                return hash(&p, 1, base);
 }