Still more P0202 constexpr-ifying. This batch is: for_each/for_each_n/lexicographical_compare
llvm-svn: 323147
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: 1b9a4ffd6bb2622360e6bae10bbcce7348186e94
diff --git a/include/algorithm b/include/algorithm
index b750616..c00845f 100644
--- a/include/algorithm
+++ b/include/algorithm
@@ -32,11 +32,12 @@
none_of(InputIterator first, InputIterator last, Predicate pred);
template <class InputIterator, class Function>
- Function
+ constexpr Function // constexpr in C++20
for_each(InputIterator first, InputIterator last, Function f);
template<class InputIterator, class Size, class Function>
- InputIterator for_each_n(InputIterator first, Size n, Function f); // C++17
+ constexpr InputIterator // constexpr in C++20
+ for_each_n(InputIterator first, Size n, Function f); // C++17
template <class InputIterator, class T>
constexpr InputIterator // constexpr in C++20
@@ -311,7 +312,7 @@
template <class InputIterator, class OutputIterator1,
class OutputIterator2, class Predicate>
- pair<OutputIterator1, OutputIterator2>
+ constexpr pair<OutputIterator1, OutputIterator2> // constexpr in C++20
partition_copy(InputIterator first, InputIterator last,
OutputIterator1 out_true, OutputIterator2 out_false,
Predicate pred);
@@ -607,11 +608,11 @@
minmax(initializer_list<T> t, Compare comp); // constexpr in C++14
template <class InputIterator1, class InputIterator2>
- bool
+ constexpr bool // constexpr in C++20
lexicographical_compare(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2);
template <class InputIterator1, class InputIterator2, class Compare>
- bool
+ constexpr bool // constexpr in C++20
lexicographical_compare(InputIterator1 first1, InputIterator1 last1,
InputIterator2 first2, InputIterator2 last2, Compare comp);
@@ -958,7 +959,7 @@
// for_each
template <class _InputIterator, class _Function>
-inline _LIBCPP_INLINE_VISIBILITY
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
_Function
for_each(_InputIterator __first, _InputIterator __last, _Function __f)
{
@@ -971,7 +972,7 @@
// for_each_n
template <class _InputIterator, class _Size, class _Function>
-inline _LIBCPP_INLINE_VISIBILITY
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
_InputIterator
for_each_n(_InputIterator __first, _Size __orig_n, _Function __f)
{
@@ -3288,7 +3289,7 @@
template <class _InputIterator, class _OutputIterator1,
class _OutputIterator2, class _Predicate>
-pair<_OutputIterator1, _OutputIterator2>
+_LIBCPP_CONSTEXPR_AFTER_CXX17 pair<_OutputIterator1, _OutputIterator2>
partition_copy(_InputIterator __first, _InputIterator __last,
_OutputIterator1 __out_true, _OutputIterator2 __out_false,
_Predicate __pred)
@@ -5658,7 +5659,7 @@
// lexicographical_compare
template <class _Compare, class _InputIterator1, class _InputIterator2>
-bool
+_LIBCPP_CONSTEXPR_AFTER_CXX17 bool
__lexicographical_compare(_InputIterator1 __first1, _InputIterator1 __last1,
_InputIterator2 __first2, _InputIterator2 __last2, _Compare __comp)
{
@@ -5673,7 +5674,7 @@
}
template <class _InputIterator1, class _InputIterator2, class _Compare>
-inline _LIBCPP_INLINE_VISIBILITY
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
bool
lexicographical_compare(_InputIterator1 __first1, _InputIterator1 __last1,
_InputIterator2 __first2, _InputIterator2 __last2, _Compare __comp)
@@ -5689,7 +5690,7 @@
}
template <class _InputIterator1, class _InputIterator2>
-inline _LIBCPP_INLINE_VISIBILITY
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
bool
lexicographical_compare(_InputIterator1 __first1, _InputIterator1 __last1,
_InputIterator2 __first2, _InputIterator2 __last2)