--- /dev/null
+/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
+/*
+ *
+ * (C) 2001 by Argonne National Laboratory.
+ * See COPYRIGHT in top-level directory.
+ */
+/*
+ * This file contains the C routines used in testing the c2f and f2c
+ * handle conversion functions for MPI_Win
+ *
+ * The tests follow this pattern:
+ *
+ * Fortran main program
+ * calls c routine with each handle type, with a prepared
+ * and valid handle (often requires constructing an object)
+ *
+ * C routine uses xxx_f2c routine to get C handle, checks some
+ * properties (i.e., size and rank of communicator, contents of datatype)
+ *
+ * Then the Fortran main program calls a C routine that provides
+ * a handle, and the Fortran program performs similar checks.
+ *
+ * We also assume that a C int is a Fortran integer. If this is not the
+ * case, these tests must be modified.
+ */
+
+/* style: allow:fprintf:1 sig:0 */
+#include <stdio.h>
+#include "mpi.h"
+#include "../../include/mpitestconf.h"
+#include <string.h>
+
+/*
+ Name mapping. All routines are created with names that are lower case
+ with a single trailing underscore. This matches many compilers.
+ We use #define to change the name for Fortran compilers that do
+ not use the lowercase/underscore pattern
+*/
+
+#ifdef F77_NAME_UPPER
+#define c2fwin_ C2FWIN
+#define f2cwin_ F2CWIN
+
+#elif defined(F77_NAME_LOWER) || defined(F77_NAME_MIXED)
+/* Mixed is ok because we use lowercase in all uses */
+#define c2fwin_ c2fwin
+#define f2cwin_ f2cwin
+
+#elif defined(F77_NAME_LOWER_2USCORE) || defined(F77_NAME_LOWER_USCORE) || \
+ defined(F77_NAME_MIXED_USCORE)
+/* Else leave name alone (routines have no underscore, so both
+ of these map to a lowercase, single underscore) */
+#else
+#error 'Unrecognized Fortran name mapping'
+#endif
+
+/* Prototypes to keep compilers happy */
+int c2fwin_( int * );
+void f2cwin_( int * );
+
+int c2fwin_( int *win )
+{
+ MPI_Win cWin = MPI_Win_f2c( *win );
+ MPI_Group group, wgroup;
+ int result;
+
+ MPI_Win_get_group( cWin, &group );
+ MPI_Comm_group( MPI_COMM_WORLD, &wgroup );
+
+ MPI_Group_compare( group, wgroup, &result );
+ if (result != MPI_IDENT) {
+ fprintf( stderr, "Win: did not get expected group\n" );
+ return 1;
+ }
+
+ MPI_Group_free( &group );
+ MPI_Group_free( &wgroup );
+
+ return 0;
+}
+
+/*
+ * The following routines provide handles to the calling Fortran program
+ */
+void f2cwin_( int *win )
+{
+ MPI_Win cWin;
+ MPI_Win_create( 0, 0, 1, MPI_INFO_NULL, MPI_COMM_WORLD, &cWin );
+ *win = MPI_Win_c2f( cWin );
+}
+
