ngtcp2_err_is_fatal
===================

Synopsis
--------

*#include <ngtcp2/ngtcp2.h>*

.. function:: int ngtcp2_err_is_fatal(int liberr)

    
    `ngtcp2_err_is_fatal` returns nonzero if *liberr* is a fatal error.
    *liberr* must be one of ngtcp2 library error codes (which is
    defined as :macro:`NGTCP2_ERR_* <NGTCP2_ERR_INVALID_ARGUMENT>`
    macros).