Provided by: libmongoc-doc_2.2.1-1_all 

SYNOPSIS
bool
mongoc_read_concern_append (mongoc_read_concern_t *read_concern, bson_t *opts);
PARAMETERS
• read_concern: A pointer to a mongoc_read_concern_t <>.
• command: A pointer to a bson_t <https://www.mongoc.org/libbson/current/bson_t.html>.
DESCRIPTION
This function appends a read concern to command options. It is useful for appending a read concern to
command options before passing them to mongoc_client_read_command_with_opts() <> or a related function
that takes an options document.
RETURNS
Returns true on success. If any arguments are invalid, returns false and logs an error.
EXAMPLE
See the example code for mongoc_client_read_command_with_opts() <>.
Author
MongoDB, Inc
Copyright
2009-present, MongoDB, Inc.
2.2.1 Dec 11, 2025 MONGOC_READ_CONCERN_APPEND(3)