1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
/// \file
// Range v3 library
//
// Copyright Eric Niebler 2014-present
//
// 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)
//
// Project home: https://github.com/ericniebler/range-v3
//
#ifndef RANGES_V3_ALGORITHM_REMOVE_HPP
#define RANGES_V3_ALGORITHM_REMOVE_HPP
#include <meta/meta.hpp>
#include <range/v3/range_fwd.hpp>
#include <range/v3/algorithm/find.hpp>
#include <range/v3/functional/identity.hpp>
#include <range/v3/functional/invoke.hpp>
#include <range/v3/iterator/concepts.hpp>
#include <range/v3/iterator/operations.hpp>
#include <range/v3/iterator/traits.hpp>
#include <range/v3/range/access.hpp>
#include <range/v3/range/concepts.hpp>
#include <range/v3/range/dangling.hpp>
#include <range/v3/range/traits.hpp>
#include <range/v3/utility/static_const.hpp>
#include <range/v3/detail/prologue.hpp>
namespace ranges
{
/// \addtogroup group-algorithms
/// @{
RANGES_FUNC_BEGIN(remove)
/// \brief function template \c remove
template(typename I, typename S, typename T, typename P = identity)(
requires permutable<I> AND sentinel_for<S, I> AND
indirect_relation<equal_to, projected<I, P>, T const *>)
constexpr I RANGES_FUNC(remove)(I first, S last, T const & val, P proj = P{})
{
first = find(std::move(first), last, val, ranges::ref(proj));
if(first != last)
{
for(I i = next(first); i != last; ++i)
{
if(!(invoke(proj, *i) == val))
{
*first = iter_move(i);
++first;
}
}
}
return first;
}
/// \overload
template(typename Rng, typename T, typename P = identity)(
requires forward_range<Rng> AND permutable<iterator_t<Rng>> AND
indirect_relation<equal_to, projected<iterator_t<Rng>, P>, T const *>)
constexpr borrowed_iterator_t<Rng> //
RANGES_FUNC(remove)(Rng && rng, T const & val, P proj = P{})
{
return (*this)(begin(rng), end(rng), val, std::move(proj));
}
RANGES_FUNC_END(remove)
namespace cpp20
{
using ranges::remove;
}
/// @}
} // namespace ranges
#include <range/v3/detail/epilogue.hpp>
#endif
|
