| /* |
| ------------------------------------------------------------------------------ |
| By Bob Jenkins, September 1996. |
| lookupa.h, a hash function for table lookup, same function as lookup.c. |
| Use this code in any way you wish. Public Domain. It has no warranty. |
| Source is http://burtleburtle.net/bob/c/lookupa.h |
| ------------------------------------------------------------------------------ |
| */ |
| |
| /* Uncommented by Jens Jakobsen 20020717 |
| #ifndef STANDARD |
| #include "standard.h" |
| #endif |
| */ |
| |
| #ifndef LOOKUPA |
| #define LOOKUPA |
| |
| typedef unsigned long int ub4; /* unsigned 4-byte quantities */ |
| typedef unsigned char ub1; |
| |
| #define CHECKSTATE 8 |
| #define hashsize(n) ((ub4)1<<(n)) |
| #define hashmask(n) (hashsize(n)-1) |
| |
| ub4 lookup( /*_ ub1 *k, ub4 length, ub4 level _*/ ); |
| void checksum( /*_ ub1 *k, ub4 length, ub4 *state _*/ ); |
| |
| #endif /* LOOKUPA */ |