NAME

       MPI_Errhandler_free  - Frees an MPI-style error handler.

SYNTAX

C Syntax

       #include <mpi.h>
       int MPI_Errhandler_free(MPI_Errhandler *errhandler)

Fortran Syntax

       USE MPI
       ! or the older form: INCLUDE 'mpif.h'
       MPI_ERRHANDLER_FREE(ERRHANDLER, IERROR)
            INTEGER   ERRHANDLER, IERROR

Fortran 2008 Syntax

       USE mpi_f08
       MPI_Errhandler_free(errhandler, ierror)
            TYPE(MPI_Errhandler), INTENT(INOUT) :: errhandler
            INTEGER, OPTIONAL, INTENT(OUT) :: ierror

C++ Syntax

       #include <mpi.h>
       void Errhandler::Free()

INPUT PARAMETER

       errhandler
                 MPI error handler (handle). Set to MPI_ERRHANDLER_NULL on exit.

OUTPUT PARAMETER

       IERROR    Fortran only: Error status (integer).

DESCRIPTION

       Marks   the   error   handler  associated  with  errhandler  for  deallocation  and  sets  errhandler  to
       MPI_ERRHANDLER_NULL. The error handler will be deallocated after all  communicators  associated  with  it
       have been deallocated.

ERRORS

       Almost  all  MPI  routines  return  an  error  value; C routines as the value of the function and Fortran
       routines in the last argument. C++ functions do not return errors. If the default error handler is set to
       MPI::ERRORS_THROW_EXCEPTIONS, then on error the  C++  exception  mechanism  will  be  used  to  throw  an
       MPI::Exception object.

       Before  the  error  value  is  returned,  the current MPI error handler is called. By default, this error
       handler aborts the MPI job, except for I/O function  errors.  The  error  handler  may  be  changed  with
       MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN may be used to cause error values
       to be returned. Note that MPI does not guarantee that an MPI program can continue past an error.

SEE ALSO

       MPI_Comm_create_errhandler
       MPI_Comm_get_errhandler
       MPI_Comm_set_errhandler

4.1.6                                             Sep 30, 2023                            MPI_Errhandler_free(3)