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re PR c++/34859 (g++ -D__STDC_LIMIT_MACROS -D__STDC_LIMIT_MACROS causes error)

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libcpp
	PR c++/34859:
	* macro.c (_cpp_create_definition): Handle __STDC_LIMIT_MACROS and
	__STDC_CONSTANT_MACROS.
gcc/testsuite
	PR c++/34859:
	* gcc.dg/cpp/pr34859.c: New file.

From-SVN: r131743
This commit is contained in:
Tom Tromey 2008-01-22 21:43:49 +00:00 • committed by Tom Tromey
parent c63173ddb0
commit ec46053bfa
4 changed files with 29 additions and 2 deletions
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5
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,8 @@
2008-01-22 Tom Tromey <tromey@redhat.com>
PR c++/34859:
* gcc.dg/cpp/pr34859.c: New file.
2008-01-22 Paul Thomas <pault@gcc.gnu.org>
PR fortran/34875

10
gcc/testsuite/gcc.dg/cpp/pr34859.c Normal file
View file

@ -0,0 +1,10 @@
/* PR c++/34859.
It is ok to redefine __STDC_CONSTANT_MACROS and __STDC_LIMIT_MACROS. */
/* { dg-do preprocess } */
#define __STDC_CONSTANT_MACROS 1
#define __STDC_CONSTANT_MACROS 1
#define __STDC_LIMIT_MACROS 1
#define __STDC_LIMIT_MACROS 1

6
libcpp/ChangeLog
View file

@ -1,3 +1,9 @@
2008-01-22 Tom Tromey <tromey@redhat.com>
PR c++/34859:
* macro.c (_cpp_create_definition): Handle __STDC_LIMIT_MACROS and
__STDC_CONSTANT_MACROS.
2008-01-07 Fred Fish <fnf@specifix.com>
PR preprocessor/30363:

10
libcpp/macro.c
View file

@ -1,7 +1,7 @@
/* Part of CPP library. (Macro and #define handling.)
Copyright (C) 1986, 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1998,
1999, 2000, 2001, 2002, 2003, 2004, 2005,
2006, 2007 Free Software Foundation, Inc.
2006, 2007, 2008 Free Software Foundation, Inc.
Written by Per Bothner, 1994.
Based on CCCP program by Paul Rubin, June 1986
Adapted to ANSI C, Richard Stallman, Jan 1987
@ -1696,7 +1696,13 @@ _cpp_create_definition (cpp_reader *pfile, cpp_hashnode *node)
node->type = NT_MACRO;
node->value.macro = macro;
if (! ustrncmp (NODE_NAME (node), DSC ("__STDC_"))
&& ustrcmp (NODE_NAME (node), (const uchar *) "__STDC_FORMAT_MACROS"))
&& ustrcmp (NODE_NAME (node), (const uchar *) "__STDC_FORMAT_MACROS")
/* __STDC_LIMIT_MACROS and __STDC_CONSTANT_MACROS are mentioned
in the C standard, as something that one must use in C++.
However DR#593 indicates that these aren't actually mentioned
in the C++ standard. We special-case them anyway. */
&& ustrcmp (NODE_NAME (node), (const uchar *) "__STDC_LIMIT_MACROS")
&& ustrcmp (NODE_NAME (node), (const uchar *) "__STDC_CONSTANT_MACROS"))
node->flags |= NODE_WARN;
return ok;