diff options
| -rw-r--r-- | libcxx/include/__split_buffer | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/libcxx/include/__split_buffer b/libcxx/include/__split_buffer index a44811c..a637c83 100644 --- a/libcxx/include/__split_buffer +++ b/libcxx/include/__split_buffer @@ -410,12 +410,14 @@ _LIBCPP_CONSTEXPR_SINCE_CXX20 void __split_buffer<_Tp, _Allocator>::shrink_to_fi try { #endif // _LIBCPP_HAS_EXCEPTIONS __split_buffer<value_type, __alloc_rr&> __t(size(), 0, __alloc_); - __t.__construct_at_end(move_iterator<pointer>(__begin_), move_iterator<pointer>(__end_)); - __t.__end_ = __t.__begin_ + (__end_ - __begin_); - std::swap(__first_, __t.__first_); - std::swap(__begin_, __t.__begin_); - std::swap(__end_, __t.__end_); - std::swap(__cap_, __t.__cap_); + if (__t.capacity() < capacity()) { + __t.__construct_at_end(move_iterator<pointer>(__begin_), move_iterator<pointer>(__end_)); + __t.__end_ = __t.__begin_ + (__end_ - __begin_); + std::swap(__first_, __t.__first_); + std::swap(__begin_, __t.__begin_); + std::swap(__end_, __t.__end_); + std::swap(__cap_, __t.__cap_); + } #if _LIBCPP_HAS_EXCEPTIONS } catch (...) { } |