array.h

   1 /*
   2  *  This program is free software; you can redistribute it and/or modify
   3  *  it under the terms of the GNU General Public License as published by
   4  *  the Free Software Foundation; either version 2 of the License, or (at
   5  *  your option) any later version.
   6  *
   7  *  This program is distributed in the hope that it will be useful, but
   8  *  WITHOUT ANY WARRANTY; without even the implied warranty of
   9  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  10  *  General Public License for more details.
  11  *
  12  *  You should have received a copy of the GNU General Public License
  13  *  along with this program; if not, write to the Free Software
  14  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  15  *  MA 02110-1301, USA.
  16  *
  17  *  Copyright © 2006 Pierre Habouzit
  18  */
  19
  20 #ifndef MUTT_LIB_LIB_ARRAY_H
  21 #define MUTT_LIB_LIB_ARRAY_H
  22
  23 #define DO_ARRAY_TYPE(type, prefix)            \
  24     typedef struct prefix##_array {            \
  25         type **arr;                            \
  26         ssize_t len;                           \
  27         ssize_t size;                          \
  28     } prefix##_array
  29
  30 #define DO_ARRAY_FUNCS(type, prefix, dtor)                                    \
  31                                                                               \
  32     static inline void prefix##_array_init(prefix##_array *array) {           \
  33         p_clear(array, 1);                                                    \
  34     }                                                                         \
  35     static inline void                                                        \
  36     prefix##_array_wipe(prefix##_array *array) {                              \
  37         while (array->len) {                                                  \
  38             dtor(&array->arr[--array->len]);                                  \
  39         }                                                                     \
  40         p_delete(&array->arr);                                                \
  41     }                                                                         \
  42                                                                               \
  43     static inline void                                                        \
  44     prefix##_array_insert(prefix##_array *array, ssize_t pos, type *item) {   \
  45         __array_insert((__array *)array, pos, (void*)item);                   \
  46     }                                                                         \
  47     static inline void                                                        \
  48     prefix##_array_append(prefix##_array *array, type *item) {                \
  49         __array_insert((__array *)array, array->len, (void*)item);            \
  50     }                                                                         \
  51     static inline type *                                                      \
  52     prefix##_array_take(prefix##_array *array, ssize_t pos) {                 \
  53         return (type *)__array_take((__array *)array, pos);                   \
  54     }
  55
  56 DO_ARRAY_TYPE(void, _);
  57 void __array_insert(__array *array, ssize_t pos, void *item);
  58 void *__array_take(__array *array, ssize_t pos);
  59
  60 DO_ARRAY_TYPE(char *, string);
  61 DO_ARRAY_FUNCS(char *, string, p_delete);
  62
  63 #endif /* MUTT_LIB_LIB_ARRAY_H */