zmq_errno - retrieve value of errno for the calling thread

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0MQ 4.3.5                                          03/31/2024                                       ZMQ_ERRNO(3)

       The zmq_errno() function shall retrieve the value of the errno variable for the calling thread.

       The zmq_errno() function is provided to assist users on non-POSIX systems who are experiencing issues
       with retrieving the correct value of errno directly. Specifically, users on Win32 systems whose
       application is using a different C run-time library from the C run-time library in use by 0MQ will need
       to use zmq_errno() for correct operation.

           Important

           Users not experiencing issues with retrieving the correct value of errno should not use this function
           and should instead access the errno variable directly.

       No errors are defined.

       zmq_errno - retrieve value of errno for the calling thread

       The zmq_errno() function shall return the value of the errno variable for the calling thread.

zmq(7)

intzmq_errno(void);