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+#ifndef TMWA_GENERIC_CONST_ARRAY_HPP
+#define TMWA_GENERIC_CONST_ARRAY_HPP
+// const_array.hpp - just a pointer-to-const and a length
+//
+// Copyright © 2011-2012 Ben Longbons <b.r.longbons@gmail.com>
+//
+// This file is part of The Mana World (Athena server)
+//
+// This program 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 of the License, or
+// (at your option) any later version.
+//
+// This program 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.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+# include "../sanity.hpp"
+
+# include <cstring>
+
+# include <iterator>
+# include <ostream>
+# include <vector>
+
+# ifdef WORKAROUND_GCC46_COMPILER
+// constexpr is buggy with templates in this version
+// Is this still needed now that const_string is removed?
+# define constexpr /* nothing */
+# endif
+
+// TODO see if I ever actually use this, and not the subclass
+template<class T>
+class const_array
+{
+ const T *d;
+ size_t n;
+public:
+ typedef const T *iterator;
+ typedef std::reverse_iterator<iterator> reverse_iterator;
+
+ constexpr
+ const_array(std::nullptr_t)
+ : d(nullptr), n(0)
+ {}
+
+ constexpr
+ const_array(const T *p, size_t z)
+ : d(p), n(z)
+ {}
+
+ constexpr
+ const_array(const T *b, const T *e)
+ : d(b), n(e - b)
+ {}
+
+ const_array(std::initializer_list<T> list)
+ : d(list.begin()), n(list.size())
+ {}
+
+ // Implicit conversion from std::vector
+ const_array(const std::vector<T>& v)
+ : d(v.data()), n(v.size())
+ {}
+
+ // but disallow conversion from a temporary
+ const_array(std::vector<T>&&) = delete;
+
+ // Oops. see src/warnings.hpp
+ constexpr
+ const T *data() const { return d; }
+ constexpr
+ size_t size() const { return n; }
+ constexpr
+ bool empty() const { return not n; }
+ constexpr explicit
+ operator bool() const { return n; }
+
+ constexpr
+ std::pair<const_array, const_array> cut(size_t o) const
+ {
+ return {const_array(d, o), const_array(d + o, n - o)};
+ }
+
+ constexpr
+ const_array first(size_t o) const
+ {
+ return cut(o).first;
+ }
+
+ constexpr
+ const_array last(size_t l) const
+ {
+ return cut(size() - l).second;
+ }
+
+ constexpr
+ const_array after(size_t o) const
+ {
+ return cut(o).second;
+ }
+
+ constexpr
+ iterator begin() const { return d; }
+ constexpr
+ iterator end() const { return d + n; }
+ constexpr
+ reverse_iterator rbegin() const { return reverse_iterator(end()); }
+ constexpr
+ reverse_iterator rend() const { return reverse_iterator(begin()); }
+
+ constexpr
+ const T& front() const { return *begin(); }
+ constexpr
+ const T& back() const { return *rbegin(); }
+
+ // This probably shouldn't be used, but I'm adding it for porting.
+ T& operator[](size_t i)
+ {
+ return const_cast<T&>(d[i]);
+ }
+};
+
+# ifdef WORKAROUND_GCC46_COMPILER
+# undef constexpr
+# endif
+
+#endif // TMWA_GENERIC_CONST_ARRAY_HPP