sec: silent wrong compiler warning in isaac

Silent the following compiler warning:

  bertos/sec/prng/isaac.c: In function 'isaac':
  bertos/sec/prng/isaac.c:76: warning: cast increases required alignment of target type

The warning was reported the ind() macro, that casts the first argument
(a uint32_t *) to a (uint8_t *) adds a value to it and re-casts back to
(uint32_t *).

However, the value added to the pointer is always a multiple of
uint32_t, so the warning can be suppressed without potential side
effects.

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@4713 38d2e660-2303-0410-9eaa-f027e97ec537

diff --git a/bertos/sec/prng/isaac.c b/bertos/sec/prng/isaac.c
index 6c0ddc1cb3f453550da79bad842431d17a71dfcb..86c162700369b8f7b99366ccef5913c8c6601d45 100644 (file)
--- a/bertos/sec/prng/isaac.c
+++ b/bertos/sec/prng/isaac.c
@@ -57,7 +57,7 @@ typedef uint32_t ub4;
 typedef uint16_t ub2;
 typedef uint8_t ub1;
 
-#define ind(mm,x)  (*(ub4 *)((ub1 *)(mm) + ((x) & ((CONFIG_ISAAC_RANDSIZ-1)<<2))))
+#define ind(mm,x)  (*(ub4 *)((size_t)(mm) + ((x) & ((CONFIG_ISAAC_RANDSIZ-1)<<2))))
 #define rngstep(mix,a,b,mm,m,m2,r,x) \
 { \
   x = *m;  \