| 1 | /*
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| 2 | * Copyright (c) 2018 Jaroslav Jindrak
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | #ifndef LIBCPP_BITS_ITERATOR
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| 30 | #define LIBCPP_BITS_ITERATOR
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| 31 |
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| 32 | #include <__bits/aux.hpp>
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| 33 |
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| 34 | namespace std::aux
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| 35 | {
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| 36 | /**
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| 37 | * Used for our custom iterators where we know
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| 38 | * that their references/const_references and
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| 39 | * pointers/const_pointers differ only in constness.
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| 40 | */
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| 41 |
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| 42 | template<class T>
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| 43 | struct get_non_const_ref
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| 44 | : type_is<T>
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| 45 | { /* DUMMY BODY */ };
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| 46 |
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| 47 | template<class T>
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| 48 | struct get_non_const_ref<const T&>
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| 49 | : type_is<T&>
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| 50 | { /* DUMMY BODY */ };
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| 51 |
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| 52 | template<class T>
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| 53 | using get_non_const_ref_t = typename get_non_const_ref<T>::type;
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| 54 |
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| 55 | template<class T>
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| 56 | struct get_non_const_ptr
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| 57 | : type_is<T>
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| 58 | { /* DUMMY BODY */ };
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| 59 |
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| 60 | template<class T>
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| 61 | struct get_non_const_ptr<const T*>
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| 62 | : type_is<T*>
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| 63 | { /* DUMMY BODY */ };
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| 64 |
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| 65 | template<class T>
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| 66 | using get_non_const_ptr_t = typename get_non_const_ptr<T>::type;
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| 67 | }
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| 68 |
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| 69 | #endif
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