On Fri, Feb 19, 2016 at 4:16 PM, Eric Fiselier via cfe-commits <cfe-commits@lists.llvm.org> wrote: > Author: ericwf > Date: Fri Feb 19 18:16:41 2016 > New Revision: 261381 > > URL: http://llvm.org/viewvc/llvm-project?rev=261381&view=rev > Log: > Add stdbool.h wrapper for libc++ > > Summary: > According to the C++ standard <stdbool.h> isn't allowed to define `true` > `false` or `bool`. However these macros are sometimes defined by the > compilers `stdbool.h`. > > Clang defines the macros whenever `__STRICT_ANSI__` isn't defined (ie > `-std=gnu++11`). > New GCC versions define the macros in C++03 mode only, older GCC versions > (4.9 and before) always define the macros. > > This patch adds a wrapper header for `stdbool.h` that undefs the required > macros. > > Reviewers: mclow.lists, rsmith, EricWF > > Subscribers: cfe-commits > > Differential Revision: http://reviews.llvm.org/D16346 > > Added: > libcxx/trunk/include/stdbool.h > > Added: libcxx/trunk/include/stdbool.h > URL: > http://llvm.org/viewvc/llvm-project/libcxx/trunk/include/stdbool.h?rev=261381&view=auto > ============================================================================== > --- libcxx/trunk/include/stdbool.h (added) > +++ libcxx/trunk/include/stdbool.h Fri Feb 19 18:16:41 2016 > @@ -0,0 +1,39 @@ > +// -*- C++ -*- > +//===--------------------------- stdbool.h > --------------------------------===// > +// > +// The LLVM Compiler Infrastructure > +// > +// This file is dual licensed under the MIT and the University of Illinois > Open > +// Source Licenses. See LICENSE.TXT for details. > +// > +//===----------------------------------------------------------------------===// > +#ifndef _LIBCPP_STDBOOL_H > +#define _LIBCPP_STDBOOL_H > + > + > +/* > + stdbool.h synopsis > + > +Macros: > + > + __bool_true_false_are_defined > + > +*/ > + > +#include <__config> > + > +#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) > +#pragma GCC system_header > +#endif > + > +#include_next <stdbool.h>
Is there any point in the #include_next, even? As an alternative: #ifdef __cplusplus #undef __bool_true_false_are_defined #define __bool_true_false_are_defined 1 #else #include_next <stdbool.h> #endif > +#ifdef __cplusplus > +#undef bool > +#undef true > +#undef false > +#undef __bool_true_false_are_defined > +#define __bool_true_false_are_defined 1 > +#endif > + > +#endif // _LIBCPP_STDBOOL_H > > > _______________________________________________ > cfe-commits mailing list > cfe-commits@lists.llvm.org > http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
