src/st-character.h

   1 /*
   2  * st-small-integer.h
   3  *
   4  * Copyright (C) 2008 Vincent Geddes
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23 */
  24
  25 #ifndef __ST_CHARACTER_H__
  26 #define __ST_CHARACTER_H__
  27
  28 #include <st-types.h>
  29
  30 static inline st_oop  st_character_new   (wchar_t wc);
  31 static inline wchar_t st_character_value (st_oop character);
  32 static inline bool    st_character_equal (st_oop m, st_oop n);
  33 static inline int     st_character_hash  (st_oop character);
  34
  35 /* inline definitions */
  36
  37 static inline st_oop
  38 st_character_new (wchar_t wc)
  39 {
  40     return (st_oop) ((wc << ST_TAG_SIZE) + ST_CHARACTER_TAG);
  41 }
  42
  43 static inline wchar_t
  44 st_character_value (st_oop character)
  45 {
  46     return ((wchar_t) character) >> ST_TAG_SIZE;
  47 }
  48
  49 static inline bool
  50 st_character_equal (st_oop m, st_oop n)
  51 {
  52     return m == n;
  53 }
  54
  55 static inline int
  56 st_character_hash (st_oop character)
  57 {
  58     return (int) st_character_value (character);
  59 }
  60
  61 #endif /* __ST_CHARACTER_H__ */