mongoc_read_concern_append - Man Page

bool
mongoc_read_concern_append (mongoc_read_concern_t *read_concern, bson_t *opts);

• 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>.

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 true on success. If any arguments are invalid, returns false and logs an error.

See the example code for mongoc_client_read_command_with_opts() <>.

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