1 | /* This is a public domain general purpose hash table package written by Peter Moore @ UCB. */
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2 |
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3 | /* @(#) st.h 5.1 89/12/14 */
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4 |
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5 | #ifndef ST_INCLUDED
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6 |
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7 | #define ST_INCLUDED
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8 |
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9 | #if SIZEOF_LONG == SIZEOF_VOIDP
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10 | typedef unsigned long st_data_t;
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11 | #elif SIZEOF_LONG_LONG == SIZEOF_VOIDP
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12 | typedef unsigned LONG_LONG st_data_t;
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13 | #else
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14 | # error ---->> st.c requires sizeof(void*) == sizeof(long) to be compiled. <<---
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15 | -
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16 | #endif
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17 | #define ST_DATA_T_DEFINED
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18 |
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19 | typedef struct st_table st_table;
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20 |
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21 | struct st_hash_type {
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22 | int (*compare)();
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23 | int (*hash)();
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24 | };
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25 |
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26 | struct st_table {
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27 | struct st_hash_type *type;
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28 | int num_bins;
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29 | int num_entries;
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30 | struct st_table_entry **bins;
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31 | };
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32 |
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33 | #define st_is_member(table,key) st_lookup(table,key,(st_data_t *)0)
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34 |
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35 | enum st_retval {ST_CONTINUE, ST_STOP, ST_DELETE, ST_CHECK};
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36 |
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37 | #ifndef _
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38 | # define _(args) args
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39 | #endif
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40 | #ifndef ANYARGS
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41 | # ifdef __cplusplus
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42 | # define ANYARGS ...
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43 | # else
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44 | # define ANYARGS
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45 | # endif
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46 | #endif
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47 |
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48 | st_table *st_init_table _((struct st_hash_type *));
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49 | st_table *st_init_table_with_size _((struct st_hash_type *, int));
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50 | st_table *st_init_numtable _((void));
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51 | st_table *st_init_numtable_with_size _((int));
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52 | st_table *st_init_strtable _((void));
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53 | st_table *st_init_strtable_with_size _((int));
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54 | int st_delete _((st_table *, st_data_t *, st_data_t *));
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55 | int st_delete_safe _((st_table *, st_data_t *, st_data_t *, st_data_t));
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56 | int st_insert _((st_table *, st_data_t, st_data_t));
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57 | int st_lookup _((st_table *, st_data_t, st_data_t *));
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58 | int st_foreach _((st_table *, int (*)(ANYARGS), st_data_t));
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59 | void st_add_direct _((st_table *, st_data_t, st_data_t));
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60 | void st_free_table _((st_table *));
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61 | void st_cleanup_safe _((st_table *, st_data_t));
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62 | st_table *st_copy _((st_table *));
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63 |
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64 | #define ST_NUMCMP ((int (*)()) 0)
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65 | #define ST_NUMHASH ((int (*)()) -2)
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66 |
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67 | #define st_numcmp ST_NUMCMP
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68 | #define st_numhash ST_NUMHASH
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69 |
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70 | int st_strhash();
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71 |
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72 | #endif /* ST_INCLUDED */
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