[Bug c++/11072] [3.4 regression] Implementation of offsetof macro

[bangerth@ices.utexas.edu]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11072



------- Additional Comments From bangerth@ices.utexas.edu  2003-06-03 13:48 -------
Subject: Re:  [3.4 regression] Implementation of offsetof
 macro


> ------- Additional Comments From rwgk@yahoo.com  2003-06-03 02:29 -------
> ISO/IEC 9899:1999 (E) 
> 
> 7.17 Common definitions <stddef.h>
> 
> 3 The macros are
> 
> NULL
> 
> which expands to an implementation-defined null pointer 
> constant; and offsetof(type, member-designator) which 
> expands to an integer constant expression that has type
>               ^^^^^^^^^^^^^^^^^^^^^^^^^^^

This provision is only in the C standard. The C++ standard has a different 
wording, which I believe is intentional given that 18.1.2 says
  The contents are the same as in the Standard C library header stddef.h, 
  with the following changes:
followed by definitions of NULL and offsetof.

W.

-------------------------------------------------------------------------
Wolfgang Bangerth              email:            bangerth@ices.utexas.edu
                               www: http://www.ices.utexas.edu/~bangerth/






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