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/* 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 #include "ruby/defines.h" RUBY_SYMBOL_EXPORT_BEGIN #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) or sizeof(LONG_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 st_data_t st_index_t; typedef int st_compare_func(st_data_t, st_data_t); typedef st_index_t st_hash_func(st_data_t); typedef char st_check_for_sizeof_st_index_t[SIZEOF_VOIDP == (int)sizeof(st_index_t) ? 1 : -1]; #define SIZEOF_ST_INDEX_T SIZEOF_VOIDP struct st_hash_type { int (compare)(ANYARGS /st_data_t, st_data_t/); / st_compare_func* / st_index_t (hash)(ANYARGS /st_data_t/); /* st_hash_func* / }; #define ST_INDEX_BITS (sizeof(st_index_t) CHAR_BIT) #if defined(HAVE_BUILTIN___BUILTIN_CHOOSE_EXPR) && defined(HAVE_BUILTIN___BUILTIN_TYPES_COMPATIBLE_P) # define ST_DATA_COMPATIBLE_P(type) \ __builtin_choose_expr(__builtin_types_compatible_p(type, st_data_t), 1, 0) #else # define ST_DATA_COMPATIBLE_P(type) 0 #endif struct st_table { const struct st_hash_type type; st_index_t num_bins; unsigned int entries_packed : 1; #ifdef __GNUC__ / * C spec says, * A bit-field shall have a type that is a qualified or unqualified * version of _Bool, signed int, unsigned int, or some other * implementation-defined type. It is implementation-defined whether * atomic types are permitted. * In short, long and long long bit-field are implementation-defined * feature. Therefore we want to supress a warning explicitly. / __extension__ #endif st_index_t num_entries : ST_INDEX_BITS - 1; union { struct { struct st_table_entry bins; struct st_table_entry head, tail; } big; struct { struct st_packed_entry entries; st_index_t real_entries; } packed; } as; }; #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 , st_index_t); st_table st_init_numtable(void); st_table st_init_numtable_with_size(st_index_t); st_table st_init_strtable(void); st_table st_init_strtable_with_size(st_index_t); st_table st_init_strcasetable(void); st_table st_init_strcasetable_with_size(st_index_t); 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_shift(st_table , st_data_t , st_data_t ); / returns 0:notfound 1:deleted / int st_insert(st_table , st_data_t, st_data_t); int st_insert2(st_table , st_data_t, st_data_t, 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 ); typedef int st_update_callback_func(st_data_t key, st_data_t value, st_data_t arg, int existing); int st_update(st_table table, st_data_t key, st_update_callback_func func, st_data_t arg); int st_foreach(st_table , int ()(ANYARGS), st_data_t); int st_foreach_check(st_table , int ()(ANYARGS), st_data_t, st_data_t); int st_reverse_foreach(st_table , int ()(ANYARGS), st_data_t); st_index_t st_keys(st_table table, st_data_t keys, st_index_t size); st_index_t st_keys_check(st_table table, st_data_t keys, st_index_t size, st_data_t never); st_index_t st_values(st_table table, st_data_t values, st_index_t size); st_index_t st_values_check(st_table table, st_data_t values, st_index_t size, st_data_t never); 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); st_index_t st_numhash(st_data_t); int st_locale_insensitive_strcasecmp(const char s1, const char s2); int st_locale_insensitive_strncasecmp(const char s1, const char s2, size_t n); #define st_strcasecmp st_locale_insensitive_strcasecmp #define st_strncasecmp st_locale_insensitive_strncasecmp size_t st_memsize(const st_table ); st_index_t st_hash(const void ptr, size_t len, st_index_t h); st_index_t st_hash_uint32(st_index_t h, uint32_t i); st_index_t st_hash_uint(st_index_t h, st_index_t i); st_index_t st_hash_end(st_index_t h); st_index_t st_hash_start(st_index_t h); #define st_hash_start(h) ((st_index_t)(h)) RUBY_SYMBOL_EXPORT_END #if defined(__cplusplus) #if 0 { /* satisfy cc-mode / #endif } / extern "C" { / #endif #endif / RUBY_ST_H */