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Another batch of P0202 constepr algirithms. remove/remove_if/remove_copy/remove_copy_if/reverse_copy, and tests (commented out) for rotate_copy, because that depends on std::copy

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@323152 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Marshall Clow
2018-01-22 21:43:04 +00:00
parent a15161a030
commit 63be4189d8
7 changed files with 127 additions and 18 deletions
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20
include/algorithm
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@@ -236,19 +236,19 @@ template <class OutputIterator, class Size, class Generator>
generate_n(OutputIterator first, Size n, Generator gen);
template <class ForwardIterator, class T>
ForwardIterator
constexpr ForwardIterator // constexpr in C++20
remove(ForwardIterator first, ForwardIterator last, const T& value);
template <class ForwardIterator, class Predicate>
ForwardIterator
constexpr ForwardIterator // constexpr in C++20
remove_if(ForwardIterator first, ForwardIterator last, Predicate pred);
template <class InputIterator, class OutputIterator, class T>
OutputIterator
constexpr OutputIterator // constexpr in C++20
remove_copy(InputIterator first, InputIterator last, OutputIterator result, const T& value);
template <class InputIterator, class OutputIterator, class Predicate>
OutputIterator
constexpr OutputIterator // constexpr in C++20
remove_copy_if(InputIterator first, InputIterator last, OutputIterator result, Predicate pred);
template <class ForwardIterator>
@@ -272,7 +272,7 @@ template <class BidirectionalIterator>
reverse(BidirectionalIterator first, BidirectionalIterator last);
template <class BidirectionalIterator, class OutputIterator>
OutputIterator
constexpr OutputIterator // constexpr in C++20
reverse_copy(BidirectionalIterator first, BidirectionalIterator last, OutputIterator result);
template <class ForwardIterator>
@@ -2098,7 +2098,7 @@ generate_n(_OutputIterator __first, _Size __orig_n, _Generator __gen)
// remove
template <class _ForwardIterator, class _Tp>
_ForwardIterator
_LIBCPP_CONSTEXPR_AFTER_CXX17 _ForwardIterator
remove(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value_)
{
__first = _VSTD::find(__first, __last, __value_);
@@ -2120,7 +2120,7 @@ remove(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value_)
// remove_if
template <class _ForwardIterator, class _Predicate>
_ForwardIterator
_LIBCPP_CONSTEXPR_AFTER_CXX17 _ForwardIterator
remove_if(_ForwardIterator __first, _ForwardIterator __last, _Predicate __pred)
{
__first = _VSTD::find_if<_ForwardIterator, typename add_lvalue_reference<_Predicate>::type>
@@ -2143,7 +2143,7 @@ remove_if(_ForwardIterator __first, _ForwardIterator __last, _Predicate __pred)
// remove_copy
template <class _InputIterator, class _OutputIterator, class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
_OutputIterator
remove_copy(_InputIterator __first, _InputIterator __last, _OutputIterator __result, const _Tp& __value_)
{
@@ -2161,7 +2161,7 @@ remove_copy(_InputIterator __first, _InputIterator __last, _OutputIterator __res
// remove_copy_if
template <class _InputIterator, class _OutputIterator, class _Predicate>
inline _LIBCPP_INLINE_VISIBILITY
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
_OutputIterator
remove_copy_if(_InputIterator __first, _InputIterator __last, _OutputIterator __result, _Predicate __pred)
{
@@ -2327,7 +2327,7 @@ reverse(_BidirectionalIterator __first, _BidirectionalIterator __last)
// reverse_copy
template <class _BidirectionalIterator, class _OutputIterator>
inline _LIBCPP_INLINE_VISIBILITY
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
_OutputIterator
reverse_copy(_BidirectionalIterator __first, _BidirectionalIterator __last, _OutputIterator __result)
{