bson_append_array_begin − bson_append_array_begin()
#define BSON_APPEND_ARRAY_BEGIN(b, key, child) \ bson_append_array_begin (b, key, (int) strlen (key), child) bool bson_append_array_begin (bson_t *bson, const char *key, int key_length, bson_t *child);
• |
bson: A bson_t. |
|||
• |
key: A string containing the name for the key. |
|||
• |
key_length: The length of key or −1 to call strlen(). |
|||
• |
child: A bson_t. |
The bson_append_array_begin() function shall begin appending an array field to bson. This allows for incrementally building a sub−array. Doing so will generally yield better performance as you will serialize to a single buffer. When done building the sub−array, the caller MUST call bson_append_array_end().
For generating array element keys, see bson_uint32_to_string().
Returns true if the operation was applied successfully. The function will fail if appending the array grows bson larger than INT32_MAX.
MongoDB, Inc
2017-present, MongoDB, Inc