libstdc++: Replace reserved identifier _T with _Tp (PR 94901)
The libstdc++ manual documents that _T can not be used, because it's a macro in system headers on some targets. PR libstdc++/94901 * include/std/type_traits (__is_complete_or_unbounded): Replace BADNAME _T with _Tp. * testsuite/17_intro/badnames.cc: New test.
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2020-05-01 Jonathan Wakely <jwakely@redhat.com>
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PR libstdc++/94901
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* include/std/type_traits (__is_complete_or_unbounded): Replace
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BADNAME _T with _Tp.
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* testsuite/17_intro/badnames.cc: New test.
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2020-04-30 Jonathan Wakely <jwakely@redhat.com>
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PR libstdc++/89510
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@ -197,8 +197,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
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// Helper functions that return false_type for incomplete classes,
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// incomplete unions and arrays of known bound from those.
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template <typename _T, size_t = sizeof(_T)>
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constexpr true_type __is_complete_or_unbounded(__type_identity<_T>)
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template <typename _Tp, size_t = sizeof(_Tp)>
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constexpr true_type __is_complete_or_unbounded(__type_identity<_Tp>)
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{ return {}; }
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template <typename _TypeIdentity,
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@ -0,0 +1,72 @@
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// Copyright (C) 2020 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library 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 along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// { dg-do compile { target x86_64-*-linux* } }
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// Names taken from coding_style.bad_identifiers in the libstdc++ manual.
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// We can't test this on all targets, because these names are used in
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// non-GCC system headers. Test on x86_64-linux where we know these particular
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// names aren't used.
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// For Solaris:
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#define _B _B is a BADNAME
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#define _C _C is a BADNAME
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#define _L _L is a BADNAME
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#define _N _N is a BADNAME
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#define _P _P is a BADNAME
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#define _S _S is a BADNAME
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#define _U _U is a BADNAME
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#define _X _X is a BADNAME
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#define _E1 _E1 is a BADNAME
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#define _E2 _E2 is a BADNAME
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#define _E3 _E3 is a BADNAME
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#define _E4 _E4 is a BADNAME
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#define _E5 _E5 is a BADNAME
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#define _E6 _E6 is a BADNAME
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#define _E7 _E7 is a BADNAME
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#define _E8 _E8 is a BADNAME
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#define _E9 _E9 is a BADNAME
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// ..
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#define _E24 _E24 is a BADNAME
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// Irix adds:
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#define _A _A is a BADNAME
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#define _G _G is a BADNAME
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// MS adds:
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#define _T _T is a BADNAME
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// BSD adds:
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#define __used __used is a BADNAME
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#define __unused __unused is a BADNAME
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// __inline (glibc uses this so can't test here)
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// _Complex (glibc uses this so can't test here)
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#define __istype __istype is a BADNAME
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#define __maskrune __maskrune is a BADNAME
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#define __tolower __tolower is a BADNAME
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#define __toupper __toupper is a BADNAME
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#define __wchar_t __wchar_t is a BADNAME
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#define __wint_t __wint_t is a BADNAME
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// _res
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// _res_ext
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// __tg_*
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// VxWorks adds:
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#define _C2 _C2 is a BADNAME
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#include <bits/stdc++.h>
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