NAME

       bson_append_undefined() - 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.

SYNOPSIS

       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(3) \&.

DESCRIPTION

       The bson_append_undefined(3) 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

       true if the operation was applied successfully, otherwise false and bson should be discarded.

COLOPHON

       This page is part of libbson.  Please report any bugs at https://jira.mongodb.org/browse/CDRIVER.

libbson                                            2016‐01‐18                           BSON_APPEND_UNDEFINED(3)