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Release Cosmopolitan v3.6.0
This release is an atomic upgrade to GCC 14.1.0 with C23 and C++23
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1585 changed files with 117353 additions and 271644 deletions
48
third_party/libcxx/__algorithm/shift_left.h
vendored
48
third_party/libcxx/__algorithm/shift_left.h
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@ -17,39 +17,43 @@
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# pragma GCC system_header
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#endif
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_LIBCPP_PUSH_MACROS
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#include <__undef_macros>
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_LIBCPP_BEGIN_NAMESPACE_STD
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#if _LIBCPP_STD_VER >= 20
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template <class _ForwardIterator>
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inline _LIBCPP_INLINE_VISIBILITY constexpr
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_ForwardIterator
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shift_left(_ForwardIterator __first, _ForwardIterator __last,
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typename iterator_traits<_ForwardIterator>::difference_type __n)
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{
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if (__n == 0) {
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return __last;
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}
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inline _LIBCPP_HIDE_FROM_ABI constexpr _ForwardIterator
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shift_left(_ForwardIterator __first,
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_ForwardIterator __last,
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typename iterator_traits<_ForwardIterator>::difference_type __n) {
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if (__n == 0) {
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return __last;
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}
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_ForwardIterator __m = __first;
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if constexpr (__has_random_access_iterator_category<_ForwardIterator>::value) {
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if (__n >= __last - __first) {
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return __first;
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}
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__m += __n;
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} else {
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for (; __n > 0; --__n) {
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if (__m == __last) {
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return __first;
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}
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++__m;
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}
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_ForwardIterator __m = __first;
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if constexpr (__has_random_access_iterator_category<_ForwardIterator>::value) {
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if (__n >= __last - __first) {
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return __first;
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}
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return _VSTD::move(__m, __last, __first);
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__m += __n;
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} else {
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for (; __n > 0; --__n) {
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if (__m == __last) {
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return __first;
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}
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++__m;
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}
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}
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return std::move(__m, __last, __first);
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}
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#endif // _LIBCPP_STD_VER >= 20
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_LIBCPP_END_NAMESPACE_STD
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_LIBCPP_POP_MACROS
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#endif // _LIBCPP___ALGORITHM_SHIFT_LEFT_H
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