| BSON_ITER_INIT_FROM_DATA(3) | libbson | BSON_ITER_INIT_FROM_DATA(3) |
bson_iter_init_from_data - bson_iter_init_from_data()
bool bson_iter_init_from_data (bson_iter_t *iter, const uint8_t *data, size_t length);
The bson_iter_init_from_data() function shall initialize iter to iterate upon the buffer data, which must contain a BSON document. Upon initialization, iter is placed before the first element. Callers must call bson_iter_next(), bson_iter_find(), or bson_iter_find_case() to advance to an element.
Returns true if the iter was successfully initialized.
static void
print_doc_id (const uint8_t *data, size_t length)
{
bson_iter_t iter;
bson_oid_t oid;
char oidstr[25];
if (bson_iter_init_from_data (&iter, data, length) && bson_iter_find (&iter, "_id") &&
BSON_ITER_HOLDS_OID (&iter)) {
bson_iter_oid (&iter, &oid);
bson_oid_to_string (&oid, oidstr);
printf ("%s\n", oidstr);
} else {
printf ("Document is missing _id.\n");
}
}
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| October 20, 2022 | 1.23.1 |