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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libstdc++-v3/libsupc++/initializer_list
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+// std::initializer_list support -*- C++ -*-
+
+// Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+//
+// This file is part of GCC.
+//
+// GCC 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 3, or (at your option)
+// any later version.
+//
+// GCC is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// 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.
+
+// 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 initializer_list
+ * This is a Standard C++ Library header.
+ */
+
+#ifndef _INITIALIZER_LIST
+#define _INITIALIZER_LIST
+
+#pragma GCC system_header
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+
+#pragma GCC visibility push(default)
+
+#include <bits/c++config.h>
+
+namespace std
+{
+ /// initializer_list
+ template<class _E>
+ class initializer_list
+ {
+ public:
+ typedef _E value_type;
+ typedef const _E& reference;
+ typedef const _E& const_reference;
+ typedef size_t size_type;
+ typedef const _E* iterator;
+ typedef const _E* const_iterator;
+
+ private:
+ iterator _M_array;
+ size_type _M_len;
+
+ // The compiler can call a private constructor.
+ constexpr initializer_list(const_iterator __a, size_type __l)
+ : _M_array(__a), _M_len(__l) { }
+
+ public:
+ constexpr initializer_list() : _M_array(0), _M_len(0) { }
+
+ // Number of elements.
+ constexpr size_type
+ size() { return _M_len; }
+
+ // First element.
+ constexpr const_iterator
+ begin() { return _M_array; }
+
+ // One past the last element.
+ constexpr const_iterator
+ end() { return begin() + size(); }
+ };
+
+ /**
+ * @brief Return an iterator pointing to the first element of
+ * the initilizer_list.
+ * @param il Initializer list.
+ */
+ template<class _Tp>
+ constexpr const _Tp*
+ begin(initializer_list<_Tp> __ils)
+ { return __ils.begin(); }
+
+ /**
+ * @brief Return an iterator pointing to one past the last element
+ * of the initilizer_list.
+ * @param il Initializer list.
+ */
+ template<class _Tp>
+ constexpr const _Tp*
+ end(initializer_list<_Tp> __ils)
+ { return __ils.end(); }
+}
+
+#pragma GCC visibility pop
+#endif // C++0x
+#endif // _INITIALIZER_LIST