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$NetBSD: patch-synacore,v 1.1 2007/05/23 11:44:36 rillig Exp $
gcc4 complains about possibly undefined behavior in line 161.
--- syna_core.c.orig 2001-04-26 22:46:13.000000000 +0200
+++ syna_core.c 2007-05-23 13:27:21.000000000 +0200
@@ -158,14 +158,13 @@ static void fadeFade()
/* //Bytewize version was: *(ptr++) -= *ptr+(*ptr>>1)>>4;*/
if (*ptr)
/* //if (*ptr & 0xf0f0f0f0ul)*/
- *(ptr++) -=
+ *ptr -=
((*ptr & 0xf0f0f0f0ul) >> 4) +
((*ptr & 0xe0e0e0e0ul) >> 5);
/* //else {
// *(ptr++) = (*ptr * 14 >> 4) & 0x0f0f0f0ful;
//}*/
- else
- ptr++;
+ ptr++;
}
while (--i > 0);
}
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