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spa: add macro to simplify array iterations some more

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uint32_t i;
	for (i = 0; i < SPA_N_ELEMENTS(some_array); i++)
		.. stuff with some_array[i].foo ...

   becomes:

	SPA_FOR_EACH_ELEMENT_VAR(some_array, p)
		.. stuff with p->foo ..
This commit is contained in:
Wim Taymans 2022-09-30 16:21:28 +02:00
parent 365ebcda9b
commit d22feab92a
21 changed files with 113 additions and 150 deletions
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3
spa/include/spa/utils/defs.h
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@ -141,6 +141,9 @@ struct spa_fraction {
#define SPA_FOR_EACH_ELEMENT(arr, ptr) \
for ((ptr) = arr; (void*)(ptr) < SPA_PTROFF(arr, sizeof(arr), void); (ptr)++)
#define SPA_FOR_EACH_ELEMENT_VAR(arr, var) \
for (__typeof__((arr)[0])* (var) = arr; (void*)(var) < SPA_PTROFF(arr, sizeof(arr), void); (var)++)
#define SPA_ABS(a) \
({ \
__typeof__(a) _a = (a); \