diff --git a/libstdc++-v3/include/bits/ranges_algo.h b/libstdc++-v3/include/bits/ranges_algo.h index 2df730eabc8..7aea5c9fa70 100644 --- a/libstdc++-v3/include/bits/ranges_algo.h +++ b/libstdc++-v3/include/bits/ranges_algo.h @@ -1454,7 +1454,7 @@ namespace ranges if (!std::__invoke(__comp, std::__invoke(__proj, *__dest), std::__invoke(__proj, *__first))) - *++__dest = std::move(*__first); + *++__dest = ranges::iter_move(__first); return {++__dest, __first}; } diff --git a/libstdc++-v3/testsuite/25_algorithms/unique/120789.cc b/libstdc++-v3/testsuite/25_algorithms/unique/120789.cc new file mode 100644 index 00000000000..24b10713247 --- /dev/null +++ b/libstdc++-v3/testsuite/25_algorithms/unique/120789.cc @@ -0,0 +1,36 @@ +// PR libstdc++/120789 - ranges::unique should use ranges::iter_move +// { dg-do compile { target c++20 } } + +#include + +struct A +{ + bool operator==(const A&) const; +}; + +struct B +{ + B(B&&) = delete; + B& operator=(const A&) const; + + operator A() const; + bool operator==(const B&) const; +}; + +struct I +{ + using value_type = A; + using difference_type = int; + B operator*() const; + I& operator++(); + I operator++(int); + bool operator==(const I&) const; + friend A iter_move(const I&); +}; + +void +test01() +{ + std::ranges::subrange r; + auto [begin, end] = std::ranges::unique(r); +}