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| Rev | Author | Line No. | Line |
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| 1 | pmbaty | 1 | /* |
| 2 | * This file is part of the DXX-Rebirth project <https://www.dxx-rebirth.com/>. |
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| 3 | * It is copyright by its individual contributors, as recorded in the |
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| 4 | * project's Git history. See COPYING.txt at the top level for license |
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| 5 | * terms and a link to the Git history. |
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| 6 | */ |
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| 7 | #pragma once |
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| 8 | |||
| 9 | #include <iterator> |
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| 10 | #include <utility> |
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| 11 | #include "partial_range.h" |
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| 12 | |||
| 13 | template <typename result_type, typename iterator_type> |
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| 14 | class iterator_result_converter : public iterator_type |
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| 15 | { |
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| 16 | public: |
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| 17 | iterator_result_converter(iterator_type &&iter) : |
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| 18 | iterator_type(std::move(iter)) |
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| 19 | { |
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| 20 | } |
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| 21 | iterator_type base() const |
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| 22 | { |
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| 23 | return *this; |
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| 24 | } |
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| 25 | result_type operator*() const |
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| 26 | { |
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| 27 | return this->iterator_type::operator*(); |
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| 28 | } |
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| 29 | iterator_result_converter &operator++() |
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| 30 | { |
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| 31 | return static_cast<iterator_result_converter &>(this->iterator_type::operator++()); |
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| 32 | } |
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| 33 | }; |
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| 34 | |||
| 35 | template <typename result_type, typename range_type, typename iterator_type = iterator_result_converter<result_type, decltype(std::begin(std::declval<range_type &>()))>> |
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| 36 | static inline partial_range_t<iterator_type> cast_range_result(range_type &range) |
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| 37 | { |
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| 38 | return range; |
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| 39 | } |