X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fcpu%2Fbyteorder.h;h=37d7a84167d97b24d3da9e150f878f461f207b97;hb=b9e1e52093d33494bf4a8ca27c14a56a25b6e0bc;hp=721f81e51435b9c1554728e1be917ebf98bf85de;hpb=0505dc06d425b604fbe0977a11588755c507767b;p=bertos.git

diff --git a/bertos/cpu/byteorder.h b/bertos/cpu/byteorder.h
index 721f81e5..37d7a841 100644
--- a/bertos/cpu/byteorder.h
+++ b/bertos/cpu/byteorder.h
@@ -132,7 +132,7 @@ INLINE float swab_float(float x)
 	/* Avoid breaking strict aliasing rules.  */
 	char *cx = (char *)(&x);
 	STATIC_ASSERT(sizeof(float) == 4);
-	#define BYTEORDER_SWAP(a, b) ((a) ^= (b) ^= (a) ^= (b))
+	#define BYTEORDER_SWAP(a, b) do { (a) ^= (b); (b) ^= (a); (a) ^= (b); } while(0)
 	BYTEORDER_SWAP(cx[0], cx[3]);
 	BYTEORDER_SWAP(cx[1], cx[2]);
 	#undef BYTEORDER_SWAP