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ad0b87727d
compare keys by their identity. * hash.c (rb_hash_identical_p): new method to tell if a hash is identical or not. * st.c (st_numcmp, st_numhash): export hash type functions. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@10911 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
/* This is a public domain general purpose hash table package written by Peter Moore @ UCB. */
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/* @(#) st.h 5.1 89/12/14 */
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#ifndef ST_INCLUDED
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#define ST_INCLUDED
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#if SIZEOF_LONG == SIZEOF_VOIDP
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typedef unsigned long st_data_t;
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#elif SIZEOF_LONG_LONG == SIZEOF_VOIDP
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typedef unsigned LONG_LONG st_data_t;
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#else
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# error ---->> st.c requires sizeof(void*) == sizeof(long) to be compiled. <<---
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-
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#endif
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#define ST_DATA_T_DEFINED
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typedef struct st_table st_table;
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struct st_hash_type {
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int (*compare)();
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int (*hash)();
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};
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struct st_table {
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struct st_hash_type *type;
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int num_bins;
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int num_entries;
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struct st_table_entry **bins;
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};
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#define st_is_member(table,key) st_lookup(table,key,(st_data_t *)0)
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enum st_retval {ST_CONTINUE, ST_STOP, ST_DELETE, ST_CHECK};
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#ifndef _
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# define _(args) args
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#endif
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#ifndef ANYARGS
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# ifdef __cplusplus
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# define ANYARGS ...
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# else
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# define ANYARGS
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# endif
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#endif
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st_table *st_init_table(struct st_hash_type *);
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st_table *st_init_table_with_size(struct st_hash_type *, int);
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st_table *st_init_numtable(void);
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st_table *st_init_numtable_with_size(int);
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st_table *st_init_strtable(void);
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st_table *st_init_strtable_with_size(int);
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int st_delete(st_table *, st_data_t *, st_data_t *);
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int st_delete_safe(st_table *, st_data_t *, st_data_t *, st_data_t);
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int st_insert(st_table *, st_data_t, st_data_t);
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int st_lookup(st_table *, st_data_t, st_data_t *);
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int st_foreach(st_table *, int (*)(ANYARGS), st_data_t);
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void st_add_direct(st_table *, st_data_t, st_data_t);
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void st_free_table(st_table *);
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void st_cleanup_safe(st_table *, st_data_t);
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st_table *st_copy(st_table *);
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int st_numcmp(long, long);
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int st_numhash(long);
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#endif /* ST_INCLUDED */
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