1 /* 2 * hash.h -- define hash table entries, sizes, hash function... 3 * 4 * SOFTWARE RIGHTS 5 * 6 * We reserve no LEGAL rights to the Purdue Compiler Construction Tool 7 * Set (PCCTS) -- PCCTS is in the public domain. An individual or 8 * company may do whatever they wish with source code distributed with 9 * PCCTS or the code generated by PCCTS, including the incorporation of 10 * PCCTS, or its output, into commerical software. 11 * 12 * We encourage users to develop software with PCCTS. However, we do ask 13 * that credit is given to us for developing PCCTS. By "credit", 14 * we mean that if you incorporate our source code into one of your 15 * programs (commercial product, research project, or otherwise) that you 16 * acknowledge this fact somewhere in the documentation, research report, 17 * etc... If you like PCCTS and have developed a nice tool with the 18 * output, please mention that you developed it using PCCTS. In 19 * addition, we ask that this header remain intact in our source code. 20 * As long as these guidelines are kept, we expect to continue enhancing 21 * this system and expect to make other tools available as they are 22 * completed. 23 * 24 * ANTLR 1.33 25 * Terence Parr 26 * Parr Research Corporation 27 * with Purdue University and AHPCRC, University of Minnesota 28 * 1989-2001 29 */ 30 31 /* H a s h T a b l e S t u f f */ 32 33 #ifndef HashTableSize 34 #define HashTableSize 553 35 #endif 36 37 #ifndef StrTableSize 38 #ifdef PC32 39 #define StrTableSize 1000000 40 #endif 41 #endif 42 43 #ifndef StrTableSize 44 #ifdef PC 45 #define StrTableSize 655200 46 #endif 47 #endif 48 49 #ifndef StrTableSize 50 #define StrTableSize 1000000 51 #endif 52 53 typedef struct _entry { /* Minimum hash table entry -- superclass */ 54 char *str; 55 struct _entry *next; 56 } Entry; 57 58 /* Hash 's' using 'size', place into h (s is modified) */ 59 #define Hash(s,h,size) \ 60 {while ( *s != '\0' ) h = (h<<1) + *s++; \ 61 h %= size;} 62 63 #ifdef __USE_PROTOS 64 Entry *hash_get(Entry **, char *), 65 **newHashTable(void), 66 *hash_add(Entry **, char *, Entry *); 67 68 void killHashTable(Entry **); 69 70 #else 71 Entry *hash_get(), **newHashTable(), *hash_add(); 72 void killHashTable(); /* MR9 23-Sep-97 */ 73 #endif 74
