.\" -*- nroff -*-
.\" Copyright 2010 Cisco Systems, Inc.  All rights reserved.
.\" Copyright 2006-2008 Sun Microsystems, Inc.
.\" Copyright (c) 1996 Thinking Machines Corporation
.\" Copyright 2016      Research Organization for Information Science
.\"                     and Technology (RIST). All rights reserved.
.\" Copyright (c) 2020      Google, LLC. All rights reserved.
.\" $COPYRIGHT$
.TH MPI_File_get_errhandler 3 "#OMPI_DATE#" "#PACKAGE_VERSION#" "#PACKAGE_NAME#"
.SH NAME
\fBMPI_File_get_errhandler \fP \- Gets the error handler for a file.

.SH SYNTAX
.ft R
.SH C Syntax
.nf
#include <mpi.h>
int MPI_File_get_errhandler(MPI_File \fIfile\fP, MPI_Errhandler\fI
	*errhandler\fP)

.fi
.SH Fortran Syntax
.nf
USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_FILE_GET_ERRHANDLER(\fIFILE, ERRHANDLER, IERROR\fP)
	INTEGER	\fIFILE, ERRHANDLER, IERROR\fP

.fi
.SH Fortran 2008 Syntax
.nf
USE mpi_f08
MPI_File_get_errhandler(\fIfile\fP, \fIerrhandler\fP, \fIierror\fP)
	TYPE(MPI_File), INTENT(IN) :: \fIfile\fP
	TYPE(MPI_Errhandler), INTENT(OUT) :: \fIerrhandler\fP
	INTEGER, OPTIONAL, INTENT(OUT) :: \fIierror\fP

.fi
.SH INPUT PARAMETER
.ft R
.TP 1i
file
File (handle).

.SH OUTPUT PARAMETERS
.ft R
.TP 1i
errhandler
MPI error handler currently associated with file (handle).
.ft R
.TP 1i
IERROR
Fortran only: Error status (integer).

.SH DESCRIPTION
.ft R
Returns in \fIerrhandler\fP (a handle to) the error handler that is currently associated with file \fIfile\fP.

.SH ERRORS
Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument.
.sp
Before the error value is returned, the current MPI error handler is
called. For MPI I/O function errors, the default error handler is set to MPI_ERRORS_RETURN. The error handler may be changed with MPI_File_set_errhandler; the predefined error handler MPI_ERRORS_ARE_FATAL may be used to make I/O errors fatal. Note that MPI does not guarantee that an MPI program can continue past an error.