mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-23 01:53:38 +08:00
1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
101 lines
3.1 KiB
C++
101 lines
3.1 KiB
C++
/* An iterator wrapper that yields pointers instead of references.
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Copyright (C) 2021-2024 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef GDBSUPPORT_REFERENCE_TO_POINTER_ITERATOR_H
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#define GDBSUPPORT_REFERENCE_TO_POINTER_ITERATOR_H
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/* Wrap an iterator that yields references to objects so that it yields
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pointers to objects instead.
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This is useful for example to bridge the gap between iterators on intrusive
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lists, which yield references, and the rest of GDB, which for legacy reasons
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expects to iterate on pointers. */
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template <typename IteratorType>
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struct reference_to_pointer_iterator
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{
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using self_type = reference_to_pointer_iterator;
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using value_type = typename IteratorType::value_type *;
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using reference = typename IteratorType::value_type *&;
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using pointer = typename IteratorType::value_type **;
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using iterator_category = typename IteratorType::iterator_category;
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using difference_type = typename IteratorType::difference_type;
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/* Construct a reference_to_pointer_iterator, passing args to the underlying
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iterator. */
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template <typename... Args>
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reference_to_pointer_iterator (Args &&...args)
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: m_it (std::forward<Args> (args)...)
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{}
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/* Create a past-the-end iterator.
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Assumes that default-constructing an underlying iterator creates a
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past-the-end iterator. */
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reference_to_pointer_iterator ()
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{}
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/* Need these as the variadic constructor would be a better match
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otherwise. */
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reference_to_pointer_iterator (reference_to_pointer_iterator &) = default;
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reference_to_pointer_iterator (const reference_to_pointer_iterator &) = default;
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reference_to_pointer_iterator (reference_to_pointer_iterator &&) = default;
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reference_to_pointer_iterator &operator= (const reference_to_pointer_iterator &) = default;
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reference_to_pointer_iterator &operator= (reference_to_pointer_iterator &&) = default;
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value_type operator* () const
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{ return &*m_it; }
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self_type &operator++ ()
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{
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++m_it;
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return *this;
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}
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self_type &operator++ (int)
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{
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m_it++;
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return *this;
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}
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self_type &operator-- ()
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{
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--m_it;
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return *this;
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}
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self_type &operator-- (int)
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{
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m_it--;
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return *this;
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}
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bool operator== (const self_type &other) const
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{ return m_it == other.m_it; }
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bool operator!= (const self_type &other) const
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{ return m_it != other.m_it; }
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private:
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/* The underlying iterator. */
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IteratorType m_it;
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};
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#endif /* GDBSUPPORT_REFERENCE_TO_POINTER_ITERATOR_H */
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