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(__INT_TO_PTR): Define to a value that presumes C89.

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This avoids a diagnostic on compilers that define __STDC__
to 0, fixing a problem with Tru64 cc reported by Martin Mokrejs in
<http://mail.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
This commit is contained in:
Paul Eggert
2003-05-05 20:39:04 +00:00
parent e743727fcd
commit cfbb7304d8
1 changed files with 10 additions and 0 deletions
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10
lib/bitset.h
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@@ -23,7 +23,17 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
Only use the functions and macros defined in this file. */
#include "bbitset.h"
/* obstack.h tries to be portable to K&R compilers, but its
__INT_TO_PTR macro generates diagnostics on compilers like Tru64 cc
that define __STDC__ to 0 when not in strict ANSI mode. The bitset
code assumes C89 or later, so it can avoid these glitches by
defining __INT_TO_PTR appropriately for C89 or later. */
#ifndef __INT_TO_PTR
# define __INT_TO_PTR(P) ((void *) ((P) + (char *) 0))
#endif
#include "obstack.h"
#include <stdio.h>
/* Attributes used to select a bitset implementation. */