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+/*
+ * libnbt++ - A library for the Minecraft Named Binary Tag format.
+ * Copyright (C) 2013, 2015 ljfa-ag
+ *
+ * This file is part of libnbt++.
+ *
+ * libnbt++ is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * libnbt++ 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef TAG_ARRAY_H_INCLUDED
+#define TAG_ARRAY_H_INCLUDED
+
+#include "crtp_tag.h"
+#include <type_traits>
+#include <vector>
+
+#include "nbt++_export.h"
+
+namespace nbt
+{
+
+///@cond
+namespace detail
+{
+ ///Meta-struct that holds the tag_type value for a specific array type
+ template<class T> struct get_array_type
+ { static_assert(sizeof(T) != sizeof(T), "Invalid type paramter for tag_primitive, can only use byte or int"); };
+
+ template<> struct get_array_type<int8_t> : public std::integral_constant<tag_type, tag_type::Byte_Array> {};
+ template<> struct get_array_type<int32_t> : public std::integral_constant<tag_type, tag_type::Int_Array> {};
+}
+///@cond
+
+/**
+ * @brief Tag that contains an array of byte or int values
+ *
+ * Common class for tag_byte_array and tag_int_array.
+ */
+template<class T>
+class NBT___EXPORT tag_array final : public detail::crtp_tag<tag_array<T>>
+{
+public:
+ //Iterator types
+ typedef typename std::vector<T>::iterator iterator;
+ typedef typename std::vector<T>::const_iterator const_iterator;
+
+ ///The type of the contained values
+ typedef T value_type;
+
+ ///The type of the tag
+ static constexpr tag_type type = detail::get_array_type<T>::value;
+
+ ///Constructs an empty array
+ tag_array() {}
+
+ ///Constructs an array with the given values
+ tag_array(std::initializer_list<T> init): data(init) {}
+ tag_array(std::vector<T>&& vec) noexcept: data(std::move(vec)) {}
+
+ ///Returns a reference to the vector that contains the values
+ std::vector<T>& get() { return data; }
+ const std::vector<T>& get() const { return data; }
+
+ /**
+ * @brief Accesses a value by index with bounds checking
+ * @throw std::out_of_range if the index is out of range
+ */
+ T& at(size_t i);
+ T at(size_t i) const;
+
+ /**
+ * @brief Accesses a value by index
+ *
+ * No bounds checking is performed.
+ */
+ T& operator[](size_t i) { return data[i]; }
+ T operator[](size_t i) const { return data[i]; }
+
+ ///Appends a value at the end of the array
+ void push_back(T val) { data.push_back(val); }
+
+ ///Removes the last element from the array
+ void pop_back() { data.pop_back(); }
+
+ ///Returns the number of values in the array
+ size_t size() const { return data.size(); }
+
+ ///Erases all values from the array.
+ void clear() { data.clear(); }
+
+ //Iterators
+ iterator begin() { return data.begin(); }
+ iterator end() { return data.end(); }
+ const_iterator begin() const { return data.begin(); }
+ const_iterator end() const { return data.end(); }
+ const_iterator cbegin() const { return data.cbegin(); }
+ const_iterator cend() const { return data.cend(); }
+
+ void read_payload(io::stream_reader& reader) override;
+ /**
+ * @inheritdoc
+ * @throw std::length_error if the array is too large for NBT
+ */
+ void write_payload(io::stream_writer& writer) const override;
+
+private:
+ std::vector<T> data;
+};
+
+template<class T> bool operator==(const tag_array<T>& lhs, const tag_array<T>& rhs)
+{ return lhs.get() == rhs.get(); }
+template<class T> bool operator!=(const tag_array<T>& lhs, const tag_array<T>& rhs)
+{ return !(lhs == rhs); }
+
+//Typedefs that should be used instead of the template tag_array.
+typedef tag_array<int8_t> tag_byte_array;
+typedef tag_array<int32_t> tag_int_array;
+
+}
+
+#endif // TAG_ARRAY_H_INCLUDED