goo/st-float.h

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; indent-offset: 4 -*- */
   2 /*
   3  * st-float.h
   4  *
   5  * Copyright (C) 2008 Vincent Geddes <vgeddes@gnome.org>
   6  *
   7  * This library is free software: you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation, either
  10  * version 3 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public License
  18  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #ifndef _ST_FLOAT_H__
  22 #define _ST_FLOAT_H__
  23
  24 #include <st-types.h>
  25 #include <st-heap-object.h>
  26
  27 typedef struct
  28 {
  29     st_header_t header;
  30
  31     double value;
  32
  33 } st_float_t;
  34
  35
  36 st_oop_t st_float_new (double value);
  37
  38 INLINE double st_float_value (st_oop_t f);
  39
  40 INLINE void st_float_set_value (st_oop_t f, double value);
  41
  42 const st_vtable_t *st_float_vtable (void);
  43
  44
  45 /* inline definitions */
  46 #define ST_FLOAT(oop) ((st_float_t *) ST_POINTER (oop))
  47
  48 INLINE double
  49 st_float_value (st_oop_t f)
  50 {
  51     return ST_FLOAT (f)->value;
  52 }
  53
  54 INLINE void
  55 st_float_set_value (st_oop_t f, double value)
  56 {
  57     ST_FLOAT (f)->value = value;
  58 }
  59
  60 #endif /* _ST_FLOAT_H__ */