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ef51bfa744
C++11 introduces "nullptr" which plays the role of C's NULL, in
replacement of "0". Fix the C++ skeletons to avoid warnings about
uses of "0" in place of "nullptr", and improve C skeletons to also use
this "nullptr" when compiled with a C++11 compiler.
* configure.ac: More C++ warnings.
* NEWS (2.5.1): Document this.
* data/c++.m4, data/c.m4 (b4_null_define): New.
(b4_null): Use YY_NULL instead of 0.
* data/glr.c, data/lalr1.cc, data/location.cc, data/yacc.c:
Call b4_null_define/b4_null where appropriate.
Use YY_NULL instead of NULL.
* data/location.cc (initialize): Accept a default argument,
YY_NULL.
* tests/actions.at, tests/calc.at: Adjust.
* data/glr.c, lib/libiberty.h, src/system.h (__attribute__):
Do not disable it when __STRICT_ANSI__ is defined, as, for
instance, it disables the __attribute__((unused)) which
protects us from some compiler warnings.
This was already done elsewhere in Bison, in 2001, see
4a0d893695.
* tests/regression.at: Adjust output.
37 lines
1.2 KiB
C
37 lines
1.2 KiB
C
/* Fake libiberty.h for Bison.
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Copyright (C) 2002-2004, 2009-2012 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* Bison depends on libiberty's implementation of bitsets, which
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requires a `libiberty.h' file. This file provides the minimum
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services. */
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#ifndef BISON_LIBIBERTY_H_
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# define BISON_LIBIBERTY_H_ 1
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# ifndef __attribute__
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# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8)
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# define __attribute__(x)
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# endif
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# endif
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# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
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# include "xalloc.h"
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#endif /* ! BISON_LIBIBERTY_H_ */
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