.. _mpi_info_set:


MPI_Info_set
============

.. include_body

:ref:`MPI_Info_set` |mdash| Adds a key/value pair to *info*.


SYNTAX
------


C Syntax
^^^^^^^^

.. code-block:: c

   #include <mpi.h>

   int MPI_Info_set(MPI_Info info, const char *key, const char *value)


Fortran Syntax
^^^^^^^^^^^^^^

.. code-block:: fortran

   USE MPI
   ! or the older form: INCLUDE 'mpif.h'
   MPI_INFO_SET(INFO, KEY, VALUE, IERROR)
   	INTEGER		INFO, IERROR
   	CHARACTER*(*)	KEY, VALUE


Fortran 2008 Syntax
^^^^^^^^^^^^^^^^^^^

.. code-block:: fortran

   USE mpi_f08
   MPI_Info_set(info, key, value, ierror)
   	TYPE(MPI_Info), INTENT(IN) :: info
   	CHARACTER(LEN=*), INTENT(IN) :: key, value
   	INTEGER, OPTIONAL, INTENT(OUT) :: ierror


INPUT/OUTPUT PARAMETER
----------------------
* ``info``: Info object (handle).

INPUT PARAMETERS
----------------
* ``key``: Key (string).
* ``value``: Value (string).

OUTPUT PARAMETER
----------------
* ``ierror``: Fortran only: Error status (integer).

DESCRIPTION
-----------

:ref:`MPI_Info_set` adds the (key,value) pair to *info* and overrides the value
if a value for the same key was previously set. The *key* and *value*
parameters are null-terminated strings in C. In Fortran, leading and
trailing spaces in *key* and *value* are stripped. If either *key* or
*value* is larger than the allowed maximums, the error MPI_ERR_INFO_KEY
or MPI_ERR_INFO_VALUE is raised, respectively.


ERRORS
------

.. include:: ./ERRORS.rst

.. seealso::
   * :ref:`MPI_Info_create`
   * :ref:`MPI_Info_delete`
   * :ref:`MPI_Info_dup`
   * :ref:`MPI_Info_free`
   * :ref:`MPI_Info_set`