NAME

       mongoc_collection_update() - This function shall update documents in collection that match
       selector.

SYNOPSIS

       bool
       mongoc_collection_update (mongoc_collection_t          *collection,
                                 mongoc_update_flags_t         flags,
                                 const bson_t                 *selector,
                                 const bson_t                 *update,
                                 const mongoc_write_concern_t *write_concern,
                                 bson_error_t                 *error);

PARAMETERS

       collection
              A mongoc_collection_t \&.

       flags  A bitwise or of mongoc_update_flags_t \&.

       selector
              A bson_t containing the query to match documents for updating.

       update A bson_t containing the update to perform.

       write_concern
              A mongoc_write_concern_t \&.

       error  An optional location for a bson_error_t or NULL \&.

DESCRIPTION

       This function shall update documents in collection that match selector \&.

       By default, updates only a single document. Set  flags  to  MONGOC_UPDATE_MULTI_UPDATE  to
       update multiple documents.

ERRORS

       Errors are propagated via the error parameter.

RETURNS

       true if successful, otherwise false and error is set.

COLOPHON

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