:man_page: bson_writer_rollback

bson_writer_rollback()
======================

Synopsis
--------

.. code-block:: c

  void
  bson_writer_rollback (bson_writer_t *writer);

Parameters
----------

* ``writer``: A :symbol:`bson_writer_t`.

Description
-----------

Abort the appending of the current bson_t to the memory region managed by ``writer``. This is useful if you detected that you went past a particular memory limit. For example, MongoDB has 48MB message limits.