1 /*****************************************************************************/
5 /* Hash function for strings */
9 /* (C) 1998-2008 Ullrich von Bassewitz */
10 /* Roemerstrasse 52 */
11 /* D-70794 Filderstadt */
12 /* EMail: uz@cc65.org */
15 /* This software is provided 'as-is', without any expressed or implied */
16 /* warranty. In no event will the authors be held liable for any damages */
17 /* arising from the use of this software. */
19 /* Permission is granted to anyone to use this software for any purpose, */
20 /* including commercial applications, and to alter it and redistribute it */
21 /* freely, subject to the following restrictions: */
23 /* 1. The origin of this software must not be misrepresented; you must not */
24 /* claim that you wrote the original software. If you use this software */
25 /* in a product, an acknowledgment in the product documentation would be */
26 /* appreciated but is not required. */
27 /* 2. Altered source versions must be plainly marked as such, and must not */
28 /* be misrepresented as being the original software. */
29 /* 3. This notice may not be removed or altered from any source */
32 /*****************************************************************************/
41 /*****************************************************************************/
43 /*****************************************************************************/
47 unsigned HashStr (const char* S)
48 /* Return a hash value for the given string */
55 H = ((H << 3) ^ ((unsigned char) *S++)) + L++;
62 unsigned HashBuf (const StrBuf* S)
63 /* Return a hash value for the given string buffer */
69 for (I = 0; I < SB_GetLen (S); ++I) {
70 H = ((H << 3) ^ ((unsigned char) SB_AtUnchecked (S, I))) + L++;