Q61204: C 6.00 README: Nested Anonymous Structs/Unions

Article: Q61204
Product(s): See article
Version(s): 6.00   | 6.00
Operating System(s): MS-DOS | OS/2
Keyword(s): ENDUSER | | mspl13_c
Last Modified: 15-AUG-1990

The following information is taken from the C Version 6.00 README.DOC
file.

Nested Anonymous Structs/Unions Must Be Completely Specified
------------------------------------------------------------

You cannot use a tag or typedef to add the members of an anonymous
(nameless) struct or union to another anonymous struct or union.
Instead, you must give the full definition of the struct to be nested.
Assume you have the following anonymous struct:

   struct oneTag
   {
       int aMem;
       int bMem;
   };

The following code fragment shows the incorrect way to include the
members of this struct in another anonymous struct:

   struct anotherTag
   {
       struct oneTag;       // INCORRECT
       int cMem;
   };

The correct method is to specify the nested struct fully:

   struct anotherTag
   {
       struct              // CORRECT
       {
           int aMem;
           int bMem;
       };
       cMem;
   };

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.

Copyright Microsoft Corporation 1986-2002.