/*
- * 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"
/* 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)];
uns a, i;
byte *bytes;
a = ~x & (x - sub) & and;
- /*
+ /*
* x_2 = x - 0x01010101;
* x_3 = ~x & x_2;
* a = x_3 & 0x80808080;