osx man page for mpi_info_get_valuelen

MPI_Info_get_valuelen(3OpenMPI) 										   MPI_Info_get_valuelen(3OpenMPI)

NAME
       MPI_Info_get_valuelen - Retrieves the length of the key value associated with an info object.

SYNTAX
C Syntax
       #include <mpi.h>
       int MPI_Info_get_valuelen(MPI_Info info, char *key,
	    int *valuelen, int *flag)

Fortran Syntax
       INCLUDE 'mpif.h'
       MPI_INFO_GET_VALUELEN(INFO, KEY, VALUELEN, FLAG, IERROR)
	    INTEGER	   INFO, VALUELEN, IERROR
	    LOGICAL	   FLAG
	    CHARACTER*(*)  KEY

C++ Syntax
       #include <mpi.h>
       bool MPI::Info::Get_valuelen(const char* key, int& valuelen)
	    const

INPUT PARAMETERS
       info	 Info object (handle).

       key	 Key (string).

OUTPUT PARAMETERS
       valuelen  Length of value arg (integer).

       flag	 Returns true if key defined, false if not (boolean).

       IERROR	 Fortran only: Error status (integer).

DESCRIPTION
       MPI_Info_get_valuelen  retrieves the length of the value associated with key. If key is defined, valuelen is set to the length of its asso-
       ciated value and flag is set to true. If key is not defined, valuelen is not touched and flag is set to false. The length returned in C	or
       C++ does not include the end-of-string character.

       If key is larger than MPI_MAX_INFO_KEY, the call is erroneous.

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++ func-
       tions 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_Info_get
       MPI_Info_get_nkeys
       MPI_Info_get_nthkey

Open MPI 1.2							  September 2006				   MPI_Info_get_valuelen(3OpenMPI)