1 files changed, 46 insertions, 0 deletions
diff --git a/config/cmake/HDFCXXTests.cpp b/config/cmake/HDFCXXTests.cpp
new file mode 100644
index 0000000..08ccb34
--- /dev/null
+++ b/config/cmake/HDFCXXTests.cpp
@@ -0,0 +1,46 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by The HDF Group.                                               *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * This file is part of HDF5.  The full HDF5 copyright notice, including     *
+ * terms governing use, modification, and redistribution, is contained in    *
+ * the COPYING file, which can be found at the root of the source code       *
+ * distribution tree, or in https://www.hdfgroup.org/licenses.               *
+ * If you do not have access to either file, you may request a copy from     *
+ * help@hdfgroup.org.                                                        *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+#ifdef CXX_HAVE_OFFSETOF
+
+#include <stdio.h>
+#include <stddef.h>
+
+#ifdef FC_DUMMY_MAIN
+#ifndef FC_DUMMY_MAIN_EQ_F77
+#  ifdef __cplusplus
+extern "C"
+#  endif
+int FC_DUMMY_MAIN()
+{ return 1;}
+#endif
+#endif
+int
+main ()
+{
+
+  struct index_st
+  {
+    unsigned char type;
+    unsigned char num;
+    unsigned int len;
+  };
+  typedef struct index_st index_t;
+  int x,y;
+  x = offsetof(struct index_st, len);
+  y = offsetof(index_t, num)
+
+  ;
+  return 0;
+}
+
+#endif