bson_append_undefined()#

Synopsis#

#define BSON_APPEND_UNDEFINED(b, key) \
   bson_append_undefined (b, key, (int) strlen (key))

bool
bson_append_undefined (bson_t *bson, const char *key, int key_length);

Parameters#

  • bson: A bson_t.

  • key: An ASCII C string containing the name of the field.

  • key_length: The length of key in bytes, or -1 to determine the length with strlen().

Description#

The bson_append_undefined() function shall append a new element to bson of type BSON_TYPE_UNDEFINED. Undefined is common in Javascript. However, this element type is deprecated and should not be used in new code.

Returns#

Returns true if the operation was applied successfully. The function will fail if appending the value grows bson larger than INT32_MAX.