import std; int main() { std::vector<int> data{1,2,3,4,5}; constexpr auto square = std::views::transform([](int v) { return v * v; }); for (int v : data | square) { std::print( "{} ", v ); } std::println(); return 0; } windows11+powershell 1、cmake .....
transform( &S::x ) ) { std::cout << t << ' '; } std::cout << "\nView1\n"; auto view1 = vec | std::views::transform( &S::f ) | std::views::transform( [] ( const S& l ) { return l.x; } ); for ( float t : view1 ) { std::cout << t << ' '; } }...
[Bug c++/116958] std::views::transform loses track of the range size redi at gcc dot gnu.org via Gcc-bugs Thu, 03 Oct 2024 09:53:14 -0700 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116958 --- Comment #10 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply ...
std::ranges::views::transform,std::ranges::transform_view 定义于头文件<ranges> template<ranges::input_rangeV, std::copy_constructibleF> requires ranges::view<V>&& std::is_object_v<F>&& std::regular_invocable<F&, ranges::range_reference_t<V>>&& ...
transform_view<std::span<int>, std::_Bind_front<std::plus<int>, int> > >(this std::ranges::views::__adaptor::_Partial<std::ranges::__detail::_To2<std::vector> >&&, std::ranges::transform_view<std::span<int>, std::_Bind_front<std::plus<int>, int> >&&)::<lambda(auto:...
{std::putchar(x);};std::stringin{"cppreference.com\n"};std::ranges::for_each(in, show);std::ranges::for_each(in|std::views::transform(rot13), show);std::stringout;std::ranges::copy(std::views::transform(in, rot13),std::back_inserter(out));std::ranges::for_each(out, ...
2) views::zip_transform is a customization point object. When calling with one argument f, let FD be std::decay_t<decltype(f)>, if: FD models copy_constructible, FD& models regular_invocable, and std::invoke_result_t<FD&> is an object type, then views::zip_transform(f) is...
[Bug c++/116958] std::views::transform loses track of the range size redi at gcc dot gnu.org via Gcc-bugsThu, 03 Oct 2024 09:47:56 -0700 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116958 --- Comment #8 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Jo...
00 --- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Avi Kivity from comment #4) > Ah, I see you mention they aren't random access iterators (though maybe they > should be) They satisfy std::random_access_iterator, but do not meet the requirements...
[Bug libstdc++/116958] std::v... avi at scylladb dot com via Gcc-bugs [Bug libstdc++/116958] std::v... avi at scylladb dot com via Gcc-bugs [Bug c++/116958] std::views::... pinskia at gcc dot gnu.org via Gcc-bugs [Bug c++/116958] std::views::... pinskia at gcc dot ...