mirror of
https://github.com/cc65/cc65.git
synced 2024-11-16 18:08:04 +00:00
9174f65e54
friends. Since names and other strings are now StrBufs in many places, code for output had to be changed. Added support for string literals to StrBuf. git-svn-id: svn://svn.cc65.org/cc65/trunk@3825 b7a2c559-68d2-44c3-8de9-860c34a00d81
77 lines
3.2 KiB
C
77 lines
3.2 KiB
C
/*****************************************************************************/
|
|
/* */
|
|
/* hashstr.c */
|
|
/* */
|
|
/* Hash function for strings */
|
|
/* */
|
|
/* */
|
|
/* */
|
|
/* (C) 1998-2008 Ullrich von Bassewitz */
|
|
/* Roemerstrasse 52 */
|
|
/* D-70794 Filderstadt */
|
|
/* EMail: uz@cc65.org */
|
|
/* */
|
|
/* */
|
|
/* This software is provided 'as-is', without any expressed or implied */
|
|
/* warranty. In no event will the authors be held liable for any damages */
|
|
/* arising from the use of this software. */
|
|
/* */
|
|
/* Permission is granted to anyone to use this software for any purpose, */
|
|
/* including commercial applications, and to alter it and redistribute it */
|
|
/* freely, subject to the following restrictions: */
|
|
/* */
|
|
/* 1. The origin of this software must not be misrepresented; you must not */
|
|
/* claim that you wrote the original software. If you use this software */
|
|
/* in a product, an acknowledgment in the product documentation would be */
|
|
/* appreciated but is not required. */
|
|
/* 2. Altered source versions must be plainly marked as such, and must not */
|
|
/* be misrepresented as being the original software. */
|
|
/* 3. This notice may not be removed or altered from any source */
|
|
/* distribution. */
|
|
/* */
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
/* common */
|
|
#include "hashstr.h"
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
/* Code */
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
unsigned HashStr (const char* S)
|
|
/* Return a hash value for the given string */
|
|
{
|
|
unsigned L, H;
|
|
|
|
/* Do the hash */
|
|
H = L = 0;
|
|
while (*S) {
|
|
H = ((H << 3) ^ ((unsigned char) *S++)) + L++;
|
|
}
|
|
return H;
|
|
}
|
|
|
|
|
|
|
|
unsigned HashBuf (const StrBuf* S)
|
|
/* Return a hash value for the given string buffer */
|
|
{
|
|
unsigned I, L, H;
|
|
|
|
/* Do the hash */
|
|
H = L = 0;
|
|
for (I = 0; I < SB_GetLen (S); ++I) {
|
|
H = ((H << 3) ^ ((unsigned char) SB_AtUnchecked (S, I))) + L++;
|
|
}
|
|
return H;
|
|
}
|
|
|
|
|
|
|