Danny Robson
4310366987
the class is used in some constexpr parsing routines, so constexpr for many methods is required.
62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
/*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Copyright 2015 Danny Robson <danny@nerdcruft.net>
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*/
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#ifndef __UTIL_VIEW_HPP
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#define __UTIL_VIEW_HPP
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#include <cstdlib>
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#include <iostream>
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namespace util {
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template <typename T>
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struct view {
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public:
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using value_type = typename std::iterator_traits<T>::value_type;
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template <size_t S>
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constexpr view (const value_type (&arr)[S]) noexcept;
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constexpr view (T first, T last) noexcept;
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constexpr T begin (void) const noexcept;
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constexpr T end (void) const noexcept;
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constexpr T cbegin (void) const noexcept;
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constexpr T cend (void) const noexcept;
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constexpr T find (value_type) const noexcept;
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constexpr bool empty (void) const noexcept;
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constexpr size_t size (void) const noexcept;
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constexpr value_type& operator[] (size_t) noexcept;
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constexpr const value_type& operator[] (size_t) const noexcept;
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bool operator== (view) const noexcept;
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private:
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T m_begin;
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T m_end;
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};
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template <typename T>
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std::ostream& operator<< (std::ostream&, view<T>);
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}
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#include "./view.ipp"
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#endif
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