Commit c60cdd8c authored by Ondřej Zajíček's avatar Ondřej Zajíček
Browse files

Cleanup changes

parent b1a597e0
......@@ -49,11 +49,6 @@
* final node (if it is not in the trie) and we came to node that
* is either extension of our prefix, or completely out of path
* In the first case, we also have to check M2.
* There also might be
* a problem that interval of acceptance (on path from root to the
* final node) might be completely missing (for example if we have
* prefix patterns 192.168.128.0/24{8,10} and 192.168.1.0/24
*
* Second, we really need not to maintain two separate bitmasks.
* Checks for mask M1 are always larger than &applen and we need
......
......@@ -52,12 +52,13 @@ u32_masklen(u32 x)
*
* This function computes a integral part of binary logarithm of given
* integer @v and returns it. The computed value is also an index of the
* first non-zero bit position.
* most significant non-zero bit position.
*/
u32
u32_log2(u32 v)
{
/* The code from http://www-graphics.stanford.edu/~seander/bithacks.html */
u32 r, shift;
r = (v > 0xFFFF) << 4; v >>= r;
shift = (v > 0xFF ) << 3; v >>= shift; r |= shift;
......@@ -66,3 +67,4 @@ u32_log2(u32 v)
r |= (v >> 1);
return r;
}
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