mirror of
https://github.com/boostorg/iterator.git
synced 2025-06-25 12:01:33 +02:00
С++03 support was deprecated in 1.85 and now can be removed. This PR clears many of workarounds, which are no longer needed now. * Remove unused workaround macros (many of). * Remove BOOST_STATIC_ASSERT usages. * Minimize Boost::type_traits dependency (in favour of STL's type_traits). Closes https://github.com/boostorg/iterator/pull/82. Squashed commit of the following: commit741a627b73
Author: Georgy Guminov <gogagum@gmail.com> Date: Sat Jan 25 12:13:05 2025 +0300 Replace testers with standard metafunctions. commitbf4cce6114
Author: Georgy Guminov <gogagum@gmail.com> Date: Sat Jan 25 11:51:32 2025 +0300 Refactor is_lvalue_iterator.hpp. commit8d080c6c58
Author: Georgy Guminov <gogagum@gmail.com> Date: Sat Jan 25 10:27:32 2025 +0300 Remove more workarounds. commit5a4ba24d36
Author: Georgy Guminov <gogagum@gmail.com> Date: Sun Jan 19 16:38:30 2025 +0300 Fixes. commitfdfafce2b9
Author: Georgy Guminov <gogagum@gmail.com> Date: Sat Oct 26 15:06:43 2024 +0300 Remove BOOST_NO_STRICT_ITERATOR_INTEROPERABILITY Correct static_assert messages. Fix messages & replace is_standard_layout with is_copy_constructible. commitc69ac1408a
Author: Georgy Guminov <gogagum@gmail.com> Date: Sat Oct 26 14:48:51 2024 +0300 Correct static_assert messages. commitb5df827151
Author: Georqy Guminov <gogagum@gmail.com> Date: Sun Jun 23 16:12:29 2024 +0300 Fixes. Remove some Boost.MPL usages. Remove unused includes. commit01fd35e9f8
Author: Georgiy Guminov <gogagum@gmail.com> Date: Wed Jun 12 17:14:21 2024 +0300 abstract conjunction. commitc02def8acf
Author: Georgiy Guminov <gogagum@gmail.com> Date: Wed Jun 12 16:35:43 2024 +0300 return addressof & conjunction. commit3b3d162575
Author: Georgiy Guminov <gogagum@gmail.com> Date: Wed Jun 12 16:30:44 2024 +0300 Make macro more readable. commit4ab19e045f
Author: Georgiy Guminov <gogagum@gmail.com> Date: Wed Jun 12 15:56:49 2024 +0300 Add static_assert messages. commit82b5c44cd3
Author: Georgiy Guminov <gogagum@gmail.com> Date: Wed Jun 12 14:12:10 2024 +0300 Return is iterator CXX17 test. commit2d58d65462
Author: Georgiy Guminov <gogagum@gmail.com> Date: Tue Jun 11 14:04:17 2024 +0300 Omitted. commita0d04d9491
Author: Georgiy Guminov <gogagum@gmail.com> Date: Tue Jun 11 14:00:35 2024 +0300 Replace move with static_cast commit4a49b8a1a2
Author: Georgiy Guminov <gogagum@gmail.com> Date: Mon Jun 10 21:38:53 2024 +0300 Return BOOST_NOEXCEPT commit054c013bba
Author: Georgiy Guminov <gogagum@gmail.com> Date: Sun Jun 9 15:20:41 2024 +0300 CXX11
102 lines
3.4 KiB
C++
102 lines
3.4 KiB
C++
// Copyright David Abrahams 2003. Use, modification and distribution is
|
|
// subject to the Boost Software License, Version 1.0. (See accompanying
|
|
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
|
|
#include <deque>
|
|
#include <iterator>
|
|
#include <cstddef> // std::ptrdiff_t
|
|
#include <boost/noncopyable.hpp>
|
|
#include <boost/iterator/is_readable_iterator.hpp>
|
|
|
|
struct v
|
|
{
|
|
v();
|
|
~v();
|
|
};
|
|
|
|
|
|
struct value_iterator
|
|
{
|
|
typedef std::input_iterator_tag iterator_category;
|
|
typedef v value_type;
|
|
typedef std::ptrdiff_t difference_type;
|
|
typedef v* pointer;
|
|
typedef v& reference;
|
|
|
|
v operator*() const;
|
|
};
|
|
|
|
struct noncopyable_iterator
|
|
{
|
|
typedef std::forward_iterator_tag iterator_category;
|
|
typedef boost::noncopyable value_type;
|
|
typedef std::ptrdiff_t difference_type;
|
|
typedef boost::noncopyable* pointer;
|
|
typedef boost::noncopyable& reference;
|
|
|
|
boost::noncopyable const& operator*() const;
|
|
};
|
|
|
|
struct proxy_iterator
|
|
{
|
|
typedef std::output_iterator_tag iterator_category;
|
|
typedef v value_type;
|
|
typedef std::ptrdiff_t difference_type;
|
|
typedef v* pointer;
|
|
typedef v& reference;
|
|
|
|
struct proxy
|
|
{
|
|
operator v&();
|
|
proxy& operator=(v) const;
|
|
};
|
|
|
|
proxy operator*() const;
|
|
};
|
|
|
|
struct proxy_iterator2
|
|
{
|
|
typedef std::output_iterator_tag iterator_category;
|
|
typedef v value_type;
|
|
typedef std::ptrdiff_t difference_type;
|
|
typedef v* pointer;
|
|
typedef v& reference;
|
|
|
|
struct proxy
|
|
{
|
|
proxy& operator=(v) const;
|
|
};
|
|
|
|
proxy operator*() const;
|
|
};
|
|
|
|
|
|
int main()
|
|
{
|
|
static_assert(boost::is_readable_iterator<v*>::value,
|
|
"boost::is_readable_iterator<v*>::value is expected to be true.");
|
|
static_assert(boost::is_readable_iterator<v const*>::value,
|
|
"boost::is_readable_iterator<v const*>::value is expected to be true.");
|
|
static_assert(boost::is_readable_iterator<std::deque<v>::iterator>::value,
|
|
"boost::is_readable_iterator<std::deque<v>::iterator>::value is expected to be true.");
|
|
static_assert(boost::is_readable_iterator<std::deque<v>::const_iterator>::value,
|
|
"boost::is_readable_iterator<std::deque<v>::const_iterator>::value is expected to be true.");
|
|
static_assert(!boost::is_readable_iterator<std::back_insert_iterator<std::deque<v>>>::value,
|
|
"boost::is_readable_iterator<std::back_insert_iterator<std::deque<v>>>::value is expected to be false.");
|
|
static_assert(!boost::is_readable_iterator<std::ostream_iterator<v>>::value,
|
|
"boost::is_readable_iterator<std::ostream_iterator<v>>::value is expected to be false.");
|
|
static_assert(boost::is_readable_iterator<proxy_iterator>::value,
|
|
"boost::is_readable_iterator<proxy_iterator>::value is expected to be true.");
|
|
static_assert(!boost::is_readable_iterator<proxy_iterator2>::value,
|
|
"boost::is_readable_iterator<proxy_iterator2>::value is expected to be false.");
|
|
static_assert(boost::is_readable_iterator<value_iterator>::value,
|
|
"boost::is_readable_iterator<value_iterator>::value is expected to be true.");
|
|
|
|
// Make sure inaccessible copy constructor doesn't prevent
|
|
// readability
|
|
static_assert(boost::is_readable_iterator<noncopyable_iterator>::value,
|
|
"boost::is_readable_iterator<noncopyable_iterator>::value is expected to be true.");
|
|
|
|
return 0;
|
|
}
|