8 bool pb_field_iter_begin(pb_field_iter_t *iter, const pb_field_t *fields, void *dest_struct)  in pb_field_iter_begin()  argument
10     iter->start = fields;  in pb_field_iter_begin()
11     iter->pos = fields;  in pb_field_iter_begin()
12     iter->required_field_index = 0;  in pb_field_iter_begin()
13     iter->dest_struct = dest_struct;  in pb_field_iter_begin()
14     iter->pData = (char*)dest_struct + iter->pos->data_offset;  in pb_field_iter_begin()
15     iter->pSize = (char*)iter->pData + iter->pos->size_offset;  in pb_field_iter_begin()
17     return (iter->pos->tag != 0);  in pb_field_iter_begin()
20 bool pb_field_iter_next(pb_field_iter_t *iter)  in pb_field_iter_next()  argument
22     const pb_field_t *prev_field = iter->pos;  in pb_field_iter_next()
31     iter->pos++;  in pb_field_iter_next()
33     if (iter->pos->tag == 0)  in pb_field_iter_next()
36         (void)pb_field_iter_begin(iter, iter->start, iter->dest_struct);  in pb_field_iter_next()
45             PB_HTYPE(iter->pos->type) == PB_HTYPE_ONEOF &&  in pb_field_iter_next()
46             iter->pos->data_offset == PB_SIZE_MAX)  in pb_field_iter_next()
69             iter->required_field_index++;  in pb_field_iter_next()
72         iter->pData = (char*)iter->pData + prev_size + iter->pos->data_offset;  in pb_field_iter_next()
73         iter->pSize = (char*)iter->pData + iter->pos->size_offset;  in pb_field_iter_next()
78 bool pb_field_iter_find(pb_field_iter_t *iter, uint32_t tag)  in pb_field_iter_find()  argument
80     const pb_field_t *start = iter->pos;  in pb_field_iter_find()
83         if (iter->pos->tag == tag &&  in pb_field_iter_find()
84             PB_LTYPE(iter->pos->type) != PB_LTYPE_EXTENSION)  in pb_field_iter_find()
90         (void)pb_field_iter_next(iter);  in pb_field_iter_find()
91     } while (iter->pos != start);  in pb_field_iter_find()