return max;
}
+/* Integer base-2 logarithm, rounded towards zero. */
+static INLINE unsigned log2i(unsigned i)
+{
+ unsigned r = 0;
+
+ if (i & 0xffff0000) {
+ i >>= 16;
+ r += 16;
+ }
+ if (i & 0x0000ff00) {
+ i >>= 8;
+ r += 8;
+ }
+ if (i & 0x000000f0) {
+ i >>= 4;
+ r += 4;
+ }
+ if (i & 0x0000000c) {
+ i >>= 2;
+ r += 2;
+ }
+ if (i & 0x00000002) {
+ r += 1;
+ }
+ return r;
+}
+
#endif