X-Git-Url: https://pd.if.org/git/?p=pccts;a=blobdiff_plain;f=antlr%2Fhash.h;fp=antlr%2Fhash.h;h=60a3417c85715c43c1de68592c271f4297f2e76c;hp=0000000000000000000000000000000000000000;hb=ca5cea5c2f4e781582ae8f220c83018d17cb418d;hpb=4c1585478dbadc88148f5417d75d6f58b8042c82 diff --git a/antlr/hash.h b/antlr/hash.h new file mode 100755 index 0000000..60a3417 --- /dev/null +++ b/antlr/hash.h @@ -0,0 +1,62 @@ +/* + * hash.h -- define hash table entries, sizes, hash function... + * + * $Id: hash.h,v 1.2 95/06/15 18:06:57 parrt Exp $ + * $Revision: 1.2 $ + * + * SOFTWARE RIGHTS + * + * We reserve no LEGAL rights to the Purdue Compiler Construction Tool + * Set (PCCTS) -- PCCTS is in the public domain. An individual or + * company may do whatever they wish with source code distributed with + * PCCTS or the code generated by PCCTS, including the incorporation of + * PCCTS, or its output, into commerical software. + * + * We encourage users to develop software with PCCTS. However, we do ask + * that credit is given to us for developing PCCTS. By "credit", + * we mean that if you incorporate our source code into one of your + * programs (commercial product, research project, or otherwise) that you + * acknowledge this fact somewhere in the documentation, research report, + * etc... If you like PCCTS and have developed a nice tool with the + * output, please mention that you developed it using PCCTS. In + * addition, we ask that this header remain intact in our source code. + * As long as these guidelines are kept, we expect to continue enhancing + * this system and expect to make other tools available as they are + * completed. + * + * ANTLR 1.33 + * Terence Parr + * Parr Research Corporation + * with Purdue University and AHPCRC, University of Minnesota + * 1989-1995 + */ + + /* H a s h T a b l e S t u f f */ + +#ifndef HashTableSize +#define HashTableSize 553 +#endif +#ifndef StrTableSize +#define StrTableSize 1000000 +#endif + +typedef struct _entry { /* Minimum hash table entry -- superclass */ + char *str; + struct _entry *next; + } Entry; + +/* Hash 's' using 'size', place into h (s is modified) */ +#define Hash(s,h,size) \ + {while ( *s != '\0' ) h = (h<<1) + *s++; \ + h %= size;} + +#ifdef __STDC__ +Entry *hash_get(Entry **, char *), + **newHashTable(void), + *hash_add(Entry **, char *, Entry *); + +void killHashTable(Entry **); + +#else +Entry *hash_get(), **newHashTable(), *hash_add(); +#endif