dwnx_err_is_fatal
=================

Synopsis
--------

*#include <dwnx/dwnx.h>*

.. function:: int dwnx_err_is_fatal(int liberr)

    
    `dwnx_err_is_fatal` returns nonzero if *liberr* is a fatal error.
    *liberr* must be one of dwnx library error codes (which is defined
    as :macro:`DWNX_ERR_* <DWNX_ERR_INVALID_ARGUMENT>` macros).