NAME

       bson_append_undefined - 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.

AUTHOR

       MongoDB, Inc

COPYRIGHT

       2017-present, MongoDB, Inc