w32api, DECLSPEC_NORETURN , and GCC-3.x

Danny Smith danny_r_smith_2001@yahoo.co.nz
Fri Feb 1 12:59:00 GMT 2002

 Recent changes to attribute handling in GCC fix some *really important*
problems with handling of attributes in C++, particulary with dllimport of
class definitions.
2002-01-31  Jason Merrill  <jason@redhat.com>

	PR c++/3395
	* decl.c (xref_tag): Remember early attributes in TYPE_ATTRIBUTES,
	* semantics.c (finish_class_definition): Adjust.

	Allow attributes in parms and casts.
	* parse.y (named_parm): Don't strip attrs.
	(declmods): Remove 'attributes' production.
	(nonempty_cv_qualifiers): Accept attributes.
	(ATTRIBUTE): Give precedence.
	* decl.c (groktypename): Handle attributes.
	(grokparms): Likewise.

However they also cause parse errors at four places in the w32api
headers (but only with C++);

winbase.h:1059:DECLSPEC_NORETURN void WINAPI ExitProcess(UINT);
winbase.h:1060:DECLSPEC_NORETURN void WINAPI ExitThread(DWORD);
winbase.h:1095:DECLSPEC_NORETURN void WINAPI

The parse errors can be fixed quite simply by putting the
__attribute__((noreturn)) at the end of the prototype rather than the
beginning in the w32api headers. 

I am not going to report this as a bug to GCC yet since the local fix is so
easy. Placing the attribute after the function is the logical (sensu GCC)
thing to do anyway. 

Just a heads up for others testing GCC.


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