iterator.h

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//   Copyright 2016-2023 Jean-Francois Poilpret
//
//   Licensed under the Apache License, Version 2.0 (the "License");
//   you may not use this file except in compliance with the License.
//   You may obtain a copy of the License at
//
//       http://www.apache.org/licenses/LICENSE-2.0
//
//   Unless required by applicable law or agreed to in writing, software
//   distributed under the License is distributed on an "AS IS" BASIS,
//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//   See the License for the specific language governing permissions and
//   limitations under the License.
 
 
#ifndef ITERATOR_HH
#define ITERATOR_HH
 
#include <stddef.h>
#include <stdint.h>
#include "initializer_list.h"
 
namespace utils
{
    template<typename T> class range
    {
    public:
        range(const T* begin, const T* end) : begin_{begin}, end_{end} {}
        range(const T* begin, uint8_t size) : begin_{begin}, end_{begin + size} {}
        range(std::initializer_list<T> list) : begin_{list.begin()}, end_{list.end()} {}
        template<uint8_t SIZE> range(T (&content)[SIZE]) : begin_{content}, end_{content + SIZE} {}
 
        const T* begin() const
        {
            return begin_;
        }
        const T* end() const
        {
            return end_;
        }
 
        uint8_t size() const
        {
            return end_ - begin_;
        }
 
    private:
        const T* const begin_;
        const T* const end_;
    };
}
 
#endif /* ITERATOR_HH */