tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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hb-map.h (3347B)

      1 /*
      2 * Copyright © 2018  Google, Inc.
      3 *
      4 *  This is part of HarfBuzz, a text shaping library.
      5 *
      6 * Permission is hereby granted, without written agreement and without
      7 * license or royalty fees, to use, copy, modify, and distribute this
      8 * software and its documentation for any purpose, provided that the
      9 * above copyright notice and the following two paragraphs appear in
     10 * all copies of this software.
     11 *
     12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
     13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
     14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
     15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
     16 * DAMAGE.
     17 *
     18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
     19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
     20 * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
     21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
     22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
     23 *
     24 * Google Author(s): Behdad Esfahbod
     25 */
     26 
     27 #if !defined(HB_H_IN) && !defined(HB_NO_SINGLE_HEADER_ERROR)
     28 #error "Include <hb.h> instead."
     29 #endif
     30 
     31 #ifndef HB_MAP_H
     32 #define HB_MAP_H
     33 
     34 #include "hb-common.h"
     35 #include "hb-set.h"
     36 
     37 HB_BEGIN_DECLS
     38 
     39 
     40 /**
     41 * HB_MAP_VALUE_INVALID:
     42 *
     43 * Unset #hb_map_t value.
     44 *
     45 * Since: 1.7.7
     46 */
     47 #define HB_MAP_VALUE_INVALID HB_CODEPOINT_INVALID
     48 
     49 /**
     50 * hb_map_t:
     51 *
     52 * Data type for holding integer-to-integer hash maps.
     53 *
     54 **/
     55 typedef struct hb_map_t hb_map_t;
     56 
     57 
     58 HB_EXTERN hb_map_t *
     59 hb_map_create (void);
     60 
     61 HB_EXTERN hb_map_t *
     62 hb_map_get_empty (void);
     63 
     64 HB_EXTERN hb_map_t *
     65 hb_map_reference (hb_map_t *map);
     66 
     67 HB_EXTERN void
     68 hb_map_destroy (hb_map_t *map);
     69 
     70 HB_EXTERN hb_bool_t
     71 hb_map_set_user_data (hb_map_t           *map,
     72 	      hb_user_data_key_t *key,
     73 	      void *              data,
     74 	      hb_destroy_func_t   destroy,
     75 	      hb_bool_t           replace);
     76 
     77 HB_EXTERN void *
     78 hb_map_get_user_data (const hb_map_t     *map,
     79 	      hb_user_data_key_t *key);
     80 
     81 
     82 /* Returns false if allocation has failed before */
     83 HB_EXTERN hb_bool_t
     84 hb_map_allocation_successful (const hb_map_t *map);
     85 
     86 HB_EXTERN hb_map_t *
     87 hb_map_copy (const hb_map_t *map);
     88 
     89 HB_EXTERN void
     90 hb_map_clear (hb_map_t *map);
     91 
     92 HB_EXTERN hb_bool_t
     93 hb_map_is_empty (const hb_map_t *map);
     94 
     95 HB_EXTERN unsigned int
     96 hb_map_get_population (const hb_map_t *map);
     97 
     98 HB_EXTERN hb_bool_t
     99 hb_map_is_equal (const hb_map_t *map,
    100 	 const hb_map_t *other);
    101 
    102 HB_EXTERN unsigned int
    103 hb_map_hash (const hb_map_t *map);
    104 
    105 HB_EXTERN void
    106 hb_map_set (hb_map_t       *map,
    107     hb_codepoint_t  key,
    108     hb_codepoint_t  value);
    109 
    110 HB_EXTERN hb_codepoint_t
    111 hb_map_get (const hb_map_t *map,
    112     hb_codepoint_t  key);
    113 
    114 HB_EXTERN void
    115 hb_map_del (hb_map_t       *map,
    116     hb_codepoint_t  key);
    117 
    118 HB_EXTERN hb_bool_t
    119 hb_map_has (const hb_map_t *map,
    120     hb_codepoint_t  key);
    121 
    122 HB_EXTERN void
    123 hb_map_update (hb_map_t *map,
    124        const hb_map_t *other);
    125 
    126 /* Pass -1 in for idx to get started. */
    127 HB_EXTERN hb_bool_t
    128 hb_map_next (const hb_map_t *map,
    129      int *idx,
    130      hb_codepoint_t *key,
    131      hb_codepoint_t *value);
    132 
    133 HB_EXTERN void
    134 hb_map_keys (const hb_map_t *map,
    135      hb_set_t *keys);
    136 
    137 HB_EXTERN void
    138 hb_map_values (const hb_map_t *map,
    139        hb_set_t *values);
    140 
    141 HB_END_DECLS
    142 
    143 #endif /* HB_MAP_H */