1 #ifndef DYNARRAY_H 2 #define DYNARRAY_H 3 4 #include <stddef.h> 5 6 /* simple dynamic array of pointers */ 7 typedef struct { 8 int count; 9 int capacity; 10 void** items; 11 } dynarray_t; 12 13 #define DYNARRAY_INITIALIZER { 0, 0, NULL } 14 15 void dynarray_init( dynarray_t *a ); 16 void dynarray_done( dynarray_t *a ); 17 18 void dynarray_append( dynarray_t *a, void* item ); 19 20 /* Used to iterate over a dynarray_t 21 * _array :: pointer to the array 22 * _item_type :: type of objects pointed to by the array 23 * _item :: name of a local variable defined within the loop 24 * with type '_item_type' 25 * _stmnt :: C statement that will be executed in each iteration. 26 * 27 * You case use 'break' and 'continue' within _stmnt 28 * 29 * This macro is only intended for simple uses. I.e. do not add or 30 * remove items from the array during iteration. 31 */ 32 #define DYNARRAY_FOREACH_TYPE(_array,_item_type,_item,_stmnt) \ 33 do { \ 34 int _nn_##__LINE__ = 0; \ 35 for (;_nn_##__LINE__ < (_array)->count; ++ _nn_##__LINE__) { \ 36 _item_type _item = (_item_type)(_array)->items[_nn_##__LINE__]; \ 37 _stmnt; \ 38 } \ 39 } while (0) 40 41 #define DYNARRAY_FOREACH(_array,_item,_stmnt) \ 42 DYNARRAY_FOREACH_TYPE(_array,void *,_item,_stmnt) 43 44 /* Simple dynamic string arrays 45 * 46 * NOTE: A strlist_t owns the strings it references. 47 */ 48 typedef dynarray_t strlist_t; 49 50 #define STRLIST_INITIALIZER DYNARRAY_INITIALIZER 51 52 /* Used to iterate over a strlist_t 53 * _list :: pointer to strlist_t object 54 * _string :: name of local variable name defined within the loop with 55 * type 'char*' 56 * _stmnt :: C statement executed in each iteration 57 * 58 * This macro is only intended for simple uses. Do not add or remove items 59 * to/from the list during iteration. 60 */ 61 #define STRLIST_FOREACH(_list,_string,_stmnt) \ 62 DYNARRAY_FOREACH_TYPE(_list,char *,_string,_stmnt) 63 64 void strlist_init( strlist_t *list ); 65 66 /* note: strlist_done will free all the strings owned by the list */ 67 void strlist_done( strlist_t *list ); 68 69 /* append a new string made of the first 'slen' characters from 'str' 70 * followed by a trailing zero. 71 */ 72 void strlist_append_b( strlist_t *list, const void* str, size_t slen ); 73 74 /* append the copy of a given input string to a strlist_t */ 75 void strlist_append_dup( strlist_t *list, const char *str); 76 77 /* sort the strings in a given list (using strcmp) */ 78 void strlist_sort( strlist_t *list ); 79 80 #endif /* DYNARRAY_H */
