diff options
Diffstat (limited to 'trunk/include/ruby/st.h')
-rw-r--r-- | trunk/include/ruby/st.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/trunk/include/ruby/st.h b/trunk/include/ruby/st.h new file mode 100644 index 0000000000..84ef72b440 --- /dev/null +++ b/trunk/include/ruby/st.h @@ -0,0 +1,103 @@ +/* This is a public domain general purpose hash table package written by Peter Moore @ UCB. */ + +/* @(#) st.h 5.1 89/12/14 */ + +#ifndef RUBY_ST_H +#define RUBY_ST_H 1 + +#if defined(__cplusplus) +extern "C" { +#if 0 +} /* satisfy cc-mode */ +#endif +#endif + +#if SIZEOF_LONG == SIZEOF_VOIDP +typedef unsigned long st_data_t; +#elif SIZEOF_LONG_LONG == SIZEOF_VOIDP +typedef unsigned LONG_LONG st_data_t; +#else +# error ---->> st.c requires sizeof(void*) == sizeof(long) to be compiled. <<---- +#endif +#define ST_DATA_T_DEFINED + +#ifndef CHAR_BIT +# ifdef HAVE_LIMITS_H +# include <limits.h> +# else +# define CHAR_BIT 8 +# endif +#endif +#ifndef _ +# define _(args) args +#endif +#ifndef ANYARGS +# ifdef __cplusplus +# define ANYARGS ... +# else +# define ANYARGS +# endif +#endif + +typedef struct st_table st_table; + +typedef int st_compare_func(st_data_t, st_data_t); +typedef int st_hash_func(st_data_t); + +struct st_hash_type { + int (*compare)(ANYARGS /*st_data_t, st_data_t*/); /* st_compare_func* */ + int (*hash)(ANYARGS /*st_data_t*/); /* st_hash_func* */ +}; + +typedef st_data_t st_index_t; +#define ST_INDEX_BITS (sizeof(st_index_t) * CHAR_BIT) + +struct st_table { + const struct st_hash_type *type; + st_index_t num_bins; + unsigned int entries_packed : 1; +#ifdef __GNUC__ + __extension__ +#endif + st_index_t num_entries : ST_INDEX_BITS - 1; + struct st_table_entry **bins; + struct st_table_entry *head; +}; + +#define st_is_member(table,key) st_lookup(table,key,(st_data_t *)0) + +enum st_retval {ST_CONTINUE, ST_STOP, ST_DELETE, ST_CHECK}; + +st_table *st_init_table(const struct st_hash_type *); +st_table *st_init_table_with_size(const struct st_hash_type *, int); +st_table *st_init_numtable(void); +st_table *st_init_numtable_with_size(int); +st_table *st_init_strtable(void); +st_table *st_init_strtable_with_size(int); +st_table *st_init_strcasetable(void); +st_table *st_init_strcasetable_with_size(int); +int st_delete(st_table *, st_data_t *, st_data_t *); /* returns 0:notfound 1:deleted */ +int st_delete_safe(st_table *, st_data_t *, st_data_t *, st_data_t); +int st_insert(st_table *, st_data_t, st_data_t); +int st_lookup(st_table *, st_data_t, st_data_t *); +int st_get_key(st_table *, st_data_t, st_data_t *); +int st_foreach(st_table *, int (*)(ANYARGS), st_data_t); +int st_reverse_foreach(st_table *, int (*)(ANYARGS), st_data_t); +void st_add_direct(st_table *, st_data_t, st_data_t); +void st_free_table(st_table *); +void st_cleanup_safe(st_table *, st_data_t); +void st_clear(st_table *); +st_table *st_copy(st_table *); +int st_numcmp(st_data_t, st_data_t); +int st_numhash(st_data_t); +int st_strcasecmp(const char *s1, const char *s2); +int st_strncasecmp(const char *s1, const char *s2, size_t n); + +#if defined(__cplusplus) +#if 0 +{ /* satisfy cc-mode */ +#endif +} /* extern "C" { */ +#endif + +#endif /* RUBY_ST_H */ |