#define BSON_APPEND_ARRAY(b, key, val) \ bson_append_array (b, key, (int) strlen (key), val) bool bson_append_array (bson_t *bson, const char *key, int key_length, const bson_t *array);
The bson_append_array() function shall append
bson using the specified key. The type of the field will be an array, but it is the responsibility of the caller to ensure that the keys of
array are properly formatted with string keys such as “0”, “1”, “2” and so forth.
true if the operation was applied successfully. The function fails if appending the array grows
bson larger than INT32_MAX.