// POD character, std::char_traits specialization -*- C++ -*-
-// Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+// Copyright (C) 2002-2017 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
-// Free Software Foundation; either version 2, or (at your option)
+// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
-// You should have received a copy of the GNU General Public License along
-// with this library; see the file COPYING. If not, write to the Free
-// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
-// USA.
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
-// As a special exception, you may use this file as part of a free software
-// library without restriction. Specifically, if other files instantiate
-// templates or use macros or inline functions from this file, or you compile
-// this file and link it with other files to produce an executable, this
-// file does not by itself cause the resulting executable to be covered by
-// the GNU General Public License. This exception does not however
-// invalidate any other reasons why the executable file might be covered by
-// the GNU General Public License.
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
/** @file ext/pod_char_traits.h
* This file is a GNU extension to the Standard C++ Library.
#ifndef _POD_CHAR_TRAITS_H
#define _POD_CHAR_TRAITS_H 1
+#pragma GCC system_header
+
#include <string>
-namespace __gnu_cxx
+namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
// POD character abstraction.
// NB: The char_type parameter is a subset of int_type, as to allow
// int_type to properly hold the full range of char_type values as
// well as EOF.
/// @brief A POD class that serves as a character abstraction class.
- template<typename V, typename I, typename S = mbstate_t>
+ template<typename _Value, typename _Int, typename _St = std::mbstate_t>
struct character
{
- typedef V value_type;
- typedef I int_type;
- typedef S state_type;
- typedef character<V, I, S> char_type;
+ typedef _Value value_type;
+ typedef _Int int_type;
+ typedef _St state_type;
+ typedef character<_Value, _Int, _St> char_type;
value_type value;
};
- template<typename V, typename I, typename S>
+ template<typename _Value, typename _Int, typename _St>
inline bool
- operator==(const character<V, I, S>& lhs, const character<V, I, S>& rhs)
+ operator==(const character<_Value, _Int, _St>& lhs,
+ const character<_Value, _Int, _St>& rhs)
{ return lhs.value == rhs.value; }
- template<typename V, typename I, typename S>
+ template<typename _Value, typename _Int, typename _St>
inline bool
- operator<(const character<V, I, S>& lhs, const character<V, I, S>& rhs)
+ operator<(const character<_Value, _Int, _St>& lhs,
+ const character<_Value, _Int, _St>& rhs)
{ return lhs.value < rhs.value; }
-} // namespace __gnu_cxx
-namespace std
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+namespace std _GLIBCXX_VISIBILITY(default)
{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
/// char_traits<__gnu_cxx::character> specialization.
- template<typename V, typename I, typename S>
- struct char_traits<__gnu_cxx::character<V, I, S> >
+ template<typename _Value, typename _Int, typename _St>
+ struct char_traits<__gnu_cxx::character<_Value, _Int, _St> >
{
- typedef __gnu_cxx::character<V, I, S> char_type;
- typedef typename char_type::int_type int_type;
- typedef typename char_type::state_type state_type;
- typedef fpos<state_type> pos_type;
- typedef streamoff off_type;
+ typedef __gnu_cxx::character<_Value, _Int, _St> char_type;
+ typedef typename char_type::int_type int_type;
+ typedef typename char_type::state_type state_type;
+ typedef fpos<state_type> pos_type;
+ typedef streamoff off_type;
static void
assign(char_type& __c1, const char_type& __c2)
static char_type*
move(char_type* __s1, const char_type* __s2, size_t __n)
{
- return static_cast<char_type*>(std::memmove(__s1, __s2,
- __n * sizeof(char_type)));
+ if (__n == 0)
+ return __s1;
+ return static_cast<char_type*>
+ (__builtin_memmove(__s1, __s2, __n * sizeof(char_type)));
}
static char_type*
copy(char_type* __s1, const char_type* __s2, size_t __n)
{
+ if (__n == 0)
+ return __s1;
std::copy(__s2, __s2 + __n, __s1);
return __s1;
}
static int_type
eof()
{
- int_type __r = { -1 };
+ int_type __r = { static_cast<typename __gnu_cxx::__conditional_type
+ <std::__is_integer<int_type>::__value,
+ int_type, int>::__type>(-1) };
return __r;
}
not_eof(const int_type& __c)
{ return eq_int_type(__c, eof()) ? int_type() : __c; }
};
-}
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
#endif
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