SYNTAX

C Syntax

int MPI_Grequest_start(MPI_Grequest_query_function* query_fn,
    MPI_Grequest_free_function* free_fn,
    MPI_Grequest_cancel_function* cancel_fn, void* extra_state,
    MPI_Request* request)

Fortran Syntax

USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_GREQUEST_START(QUERY_FN, FREE_FN, CANCEL_FN, EXTRA_STATE, REQUEST, IERROR)
    EXTERNAL QUERY_FN, FREE_FN, CANCEL_FN
    INTEGER(KIND=MPI_ADDRESS_KIND) EXTRA_STATE
    INTEGER REQUEST, IERROR

Fortran 2008 Syntax

USE mpi_f08
MPI_Grequest_start(query_fn, free_fn, cancel_fn, extra_state, request, ierror)
    PROCEDURE(MPI_Grequest_query_function) :: query_fn
    PROCEDURE(MPI_Grequest_free_function) :: free_fn
    PROCEDURE(MPI_Grequest_cancel_function) :: cancel_fn
    INTEGER(KIND=MPI_ADDRESS_KIND), INTENT(IN) :: extra_state
    TYPE(MPI_Request), INTENT(OUT) :: request
    INTEGER, OPTIONAL, INTENT(OUT) :: ierror