X-Git-Url: http://mj.ucw.cz/gitweb/?a=blobdiff_plain;f=lib%2Fhashfunc.c;h=f51c84e8ec42b67f190a0a95c630e1ad7cfbdf4b;hb=a0040bd045e62e1f47852b1e1285fc0f0b34f78d;hp=2f951c6977ab5725e49281fa5135bfcb4d9d4592;hpb=e46742a23442319c5fa3106847b72c28cf1103ea;p=libucw.git

diff --git a/lib/hashfunc.c b/lib/hashfunc.c
index 2f951c69..f51c84e8 100644
--- a/lib/hashfunc.c
+++ b/lib/hashfunc.c
@@ -1,11 +1,14 @@
 /*
- *	Hyper-super-meta-alt-control-shift extra fast str_len() and hash_*()
- *	routines
+ *	UCW Library -- Hyper-super-meta-alt-control-shift extra fast
+ *	str_len() and hash_*() routines
  *
  *	It is always at least as fast as the classical strlen() routine and for
  *	strings longer than 100 characters, it is substantially faster.
  *
  *	(c) 2002, Robert Spalek <robert@ucw.cz>
+ *
+ *	This software may be freely distributed and used according to the terms
+ *	of the GNU Lesser General Public License.
  */
 
 #include "lib/lib.h"
@@ -14,7 +17,7 @@
 
 /* The number of bits the hash in the function hash_*() is rotated by after
  * every pass.  It should be prime with the word size.  */
-#define	SHIFT_BITS	5
+#define	SHIFT_BITS	7
 
 /* A bit-mask which clears higher bytes than a given threshold.  */
 static uns mask_higher_bits[sizeof(uns)];
@@ -42,7 +45,7 @@ str_len_uns(uns x)
 	uns a, i;
 	byte *bytes;
 	a = ~x & (x - sub) & and;
-	/* 
+	/*
 	 * x_2 = x - 0x01010101;
 	 * x_3 = ~x & x_2;
 	 * a = x_3 & 0x80808080;