macro: add voffsetof() helper, that operates like offsetof() but on variables

2024-10-11 10:41:06 +02:00
parent b71ac3e509
commit 44fd4548b5
1 changed files with 1 additions and 0 deletions
@@ -549,6 +549,7 @@ static inline uint64_t ALIGN_OFFSET_U64(uint64_t l, uint64_t ali) {

 #define sizeof_field(struct_type, member) sizeof(((struct_type *) 0)->member)
 #define endoffsetof_field(struct_type, member) (offsetof(struct_type, member) + sizeof_field(struct_type, member))
+#define voffsetof(v, member) offsetof(typeof(v), member)

 #define _FOREACH_ARRAY(i, array, num, m, end)                           \
        for (typeof(array[0]) *i = (array), *end = ({                   \