64 lines
1.2 KiB
C++
64 lines
1.2 KiB
C++
/*
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* \brief Array class with static size
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* \author Stefan Kalkowski
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* \date 2016-09-30
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*/
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/*
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* Copyright (C) 2016-2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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#ifndef _SRC__LIB__HW__ARRAY_H_
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#define _SRC__LIB__HW__ARRAY_H_
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#include <base/log.h>
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namespace Hw { template <typename, unsigned> class Array; }
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template <typename T, unsigned MAX>
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class Hw::Array
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{
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private:
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unsigned _count = 0;
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T _objs[MAX];
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void _init(unsigned i, T obj) { _objs[i] = obj; }
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template <typename ... TAIL>
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void _init(unsigned i, T obj, TAIL ... tail)
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{
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_objs[i] = obj;
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_init(i+1, tail...);
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}
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public:
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Array() {}
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template<typename ... ARGS>
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Array(ARGS ... args) : _count(sizeof...(ARGS))
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{
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static_assert(sizeof...(ARGS) <= MAX, "Array too small!");
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_init(0, args...);
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}
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void add(T const & obj)
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{
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if (_count == MAX) Genode::error("Array too small!");
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else _objs[_count++] = obj;
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}
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template <typename FUNC>
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void for_each(FUNC f) const {
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for (unsigned i = 0; i < _count; i++) f(_objs[i]); }
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unsigned count() const { return _count; }
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};
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#endif /* _SRC__LIB__HW__ARRAY_H_ */
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