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array: add some more helpers

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This commit is contained in:
Wim Taymans 2018-07-03 21:35:47 +02:00
parent 8f97e0dd31
commit fe03ec8bde
1 changed files with 12 additions and 3 deletions
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15
src/pipewire/array.h
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@ -53,11 +53,20 @@ struct pw_array {
/** Check if an item with index \a idx and type \a t exist in array \memberof pw_array */
#define pw_array_check_index(a,idx,t) pw_array_check_index_s(a,idx,sizeof(t))
#define pw_array_for_each(pos, array) \
for (pos = (__typeof__(pos)) (array)->data; \
(const uint8_t *) pos < ((const uint8_t *) (array)->data + (array)->size); \
#define pw_array_first(a) ((a)->data)
#define pw_array_end(a) ((const uint8_t*)(a)->data + (a)->size)
#define pw_array_check(a,p) ((const uint8_t*)(p) < pw_array_end(a))
#define pw_array_for_each(pos, array) \
for (pos = (__typeof__(pos)) pw_array_first(array); \
pw_array_check(array, pos); \
(pos)++)
#define pw_array_remove(a,p) \
memmove(p, SPA_MEMBER((p), sizeof(*(p)), void), \
SPA_PTRDIFF((p), pw_array_end(a)) - sizeof(*(p)));
/** Initialize the array with given extend \memberof pw_array */
static inline void pw_array_init(struct pw_array *arr, size_t extend)
{