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Hi there, this is Chlorie 👋

About Myself

  • Ph.D. student at Institute of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
  • Researching on machine learning & data mining.
  • Novice programmer, especially loves the C++ language, also likes a few other languages like C♯. I don't like dynamically typed languages very much (cough Python cough), but sometimes I have to use them to get jobs done.
  • Loves computer language features and quirks. (I heard you say "template meta-programming"?)
  • Personal side projects are started at a regular basis (mainly for procrastination) but seldom finished... 😢
  • I love playing games, mainly not the AAA kind, and more leaning towards indie games. I like rhythm games (e.g. Arcaea), puzzle games (e.g. Baba is You), and some indies in other genres (e.g. Celeste).

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meta's Issues

询问报错如何解决的问题

Hello,
谢谢你提供的代码。它看起来在Visual Studio的框架下非常好用，并且能够得到有效的执行。
但是我在我的电脑上运行时，似乎出现了状况：

OS：Linux 4.19.0-8-amd64 #1
SMP Debian 4.19.98-1 (2020-01-26) x86_64 GNU/Linux
IDE：Clion 2019.3.5
g++:version 8.3.0 (Debian 8.3.0-6)
Cmake：3.13

Problems: 当我尝试进行生成程序时，遇到如下问题：
====================[ Build | Meta_Algotirhm | Debug ]========================== /usr/clion-2019.3.5/bin/cmake/linux/bin/cmake --build "/home/wz18207/CLionProjects/Meta Algotirhm/cmake-build-debug" --target Meta_Algotirhm -- -j 1 [ 50%] Building CXX object CMakeFiles/Meta_Algotirhm.dir/main.cpp.o In file included from /home/wz18207/CLionProjects/Meta Algotirhm/meta/algorithm.h:2, from /home/wz18207/CLionProjects/Meta Algotirhm/main.cpp:3: /home/wz18207/CLionProjects/Meta Algotirhm/meta/list.h:5:54: error: ‘index_sequence’ in namespace ‘std’ does not name a template type template <size_t... Idx> using index_list = std::index_sequence<Idx...>; ^~~~~~~~~~~~~~ /home/wz18207/CLionProjects/Meta Algotirhm/meta/list.h:6:54: error: ‘make_index_sequence’ in namespace ‘std’ does not name a template type template <size_t N> using make_index_list = std::make_index_sequence<N>; ^~~~~~~~~~~~~~~~~~~ /home/wz18207/CLionProjects/Meta Algotirhm/meta/list.h:11:63: error: type/value mismatch at argument 1 in template parameter list for ‘template<class ... Ts> struct meta::type_list’ template <size_t... Idx> struct to_type_list<type_list<Idx...>> { using type = type_list<size_t_t<Idx>...>; }; ^~~ /home/wz18207/CLionProjects/Meta Algotirhm/meta/list.h:11:63: note: expected a type, got ‘Idx ...’ /home/wz18207/CLionProjects/Meta Algotirhm/meta/list.h:11:66: error: template argument 1 is invalid template <size_t... Idx> struct to_type_list<type_list<Idx...>> { using type = type_list<size_t_t<Idx>...>; }; ^~ /home/wz18207/CLionProjects/Meta Algotirhm/meta/list.h:13:82: error: type/value mismatch at argument 1 in template parameter list for ‘template<class IList> struct meta::to_type_list’ template <size_t N> using make_index_type_list = to_type_list_t<to_type_list<N>>; ^ /home/wz18207/CLionProjects/Meta Algotirhm/meta/list.h:13:82: note: expected a type, got ‘N’ /home/wz18207/CLionProjects/Meta Algotirhm/meta/list.h:13:83: error: template argument 1 is invalid template <size_t N> using make_index_type_list = to_type_list_t<to_type_list<N>>; ^~ /home/wz18207/CLionProjects/Meta Algotirhm/meta/list.h:16:115: error: type/value mismatch at argument 1 in template parameter list for ‘template<class List> struct meta::to_index_list’ template <size_t... Idx> struct to_index_list<type_list<size_t_t<Idx>...>> { using type = to_index_list<Idx...>; }; ^ /home/wz18207/CLionProjects/Meta Algotirhm/meta/list.h:16:115: note: expected a type, got ‘Idx’ /home/wz18207/CLionProjects/Meta Algotirhm/meta/list.h:16:115: note: so any instantiation with a non-empty parameter pack would be ill-formed /home/wz18207/CLionProjects/Meta Algotirhm/meta/list.h:40:68: error: type/value mismatch at argument 1 in template parameter list for ‘template<class List> struct meta::to_index_list’ struct nth_type_impl<type_list<Ts...>, to_index_list<Idx...>, N> : indexed_type<Idx, Ts>... {}; ^ /home/wz18207/CLionProjects/Meta Algotirhm/meta/list.h:40:68: note: expected a type, got ‘Idx’ /home/wz18207/CLionProjects/Meta Algotirhm/meta/list.h:40:68: note: so any instantiation with a non-empty parameter pack would be ill-formed /home/wz18207/CLionProjects/Meta Algotirhm/meta/list.h:40:72: error: template argument 2 is invalid struct nth_type_impl<type_list<Ts...>, to_index_list<Idx...>, N> : indexed_type<Idx, Ts>... {}; ^ /home/wz18207/CLionProjects/Meta Algotirhm/meta/list.h:47:80: error: type/value mismatch at argument 1 in template parameter list for ‘template<class List> struct meta::to_index_list’ detail::nth_type_impl<type_list<Ts...>, to_index_list<sizeof...(Ts)>, N>{})); ^ /home/wz18207/CLionProjects/Meta Algotirhm/meta/list.h:47:80: note: expected a type, got ‘sizeof... (Ts)’ /home/wz18207/CLionProjects/Meta Algotirhm/meta/list.h:47:84: error: template argument 2 is invalid detail::nth_type_impl<type_list<Ts...>, to_index_list<sizeof...(Ts)>, N>{})); ^ /home/wz18207/CLionProjects/Meta Algotirhm/meta/list.h:53:43: error: type/value mismatch at argument 1 in template parameter list for ‘template<class List> struct meta::to_index_list’ struct at_list<List, to_index_list<Idx...>> { using type = type_list<at_t<List, Idx>...>; }; ^~~ /home/wz18207/CLionProjects/Meta Algotirhm/meta/list.h:53:43: note: expected a type, got ‘Idx’ /home/wz18207/CLionProjects/Meta Algotirhm/meta/list.h:53:43: note: so any instantiation with a non-empty parameter pack would be ill-formed /home/wz18207/CLionProjects/Meta Algotirhm/meta/list.h:53:46: error: template argument 2 is invalid struct at_list<List, to_index_list<Idx...>> { using type = type_list<at_t<List, Idx>...>; }; ^~ In file included from /home/wz18207/CLionProjects/Meta Algotirhm/main.cpp:3: /home/wz18207/CLionProjects/Meta Algotirhm/meta/algorithm.h:77:48: error: type/value mismatch at argument 1 in template parameter list for ‘template<class T> struct meta::is_type_list’ using repeat_t = transform_t<is_type_list<N>, bind_front<first, T>::template result_t>; ^ /home/wz18207/CLionProjects/Meta Algotirhm/meta/algorithm.h:77:48: note: expected a type, got ‘N’ /home/wz18207/CLionProjects/Meta Algotirhm/meta/algorithm.h:77:90: error: template argument 1 is invalid using repeat_t = transform_t<is_type_list<N>, bind_front<first, T>::template result_t>; ^ /home/wz18207/CLionProjects/Meta Algotirhm/meta/algorithm.h:83:30: error: type/value mismatch at argument 1 in template parameter list for ‘template<class T> struct meta::is_type_list’ is_type_list<Size>, bind_front<plus, size_t_t<Begin>>::template result_t>>; ^ /home/wz18207/CLionProjects/Meta Algotirhm/meta/algorithm.h:83:30: note: expected a type, got ‘Size’ /home/wz18207/CLionProjects/Meta Algotirhm/meta/algorithm.h:83:77: error: template argument 1 is invalid is_type_list<Size>, bind_front<plus, size_t_t<Begin>>::template result_t>>; ^~~~~~~~ /home/wz18207/CLionProjects/Meta Algotirhm/meta/algorithm.h:83:85: error: template argument 1 is invalid is_type_list<Size>, bind_front<plus, size_t_t<Begin>>::template result_t>>; ^~ /home/wz18207/CLionProjects/Meta Algotirhm/meta/algorithm.h:86:46: error: ‘index_range’ is not a member of ‘meta::detail’ using subseq_t = at_list_t<List, detail::index_range<Begin, Size>>; ^~~~~~~~~~~ /home/wz18207/CLionProjects/Meta Algotirhm/meta/algorithm.h:86:65: error: wrong number of template arguments (3, should be 2) using subseq_t = at_list_t<List, detail::index_range<Begin, Size>>; ^~~~ In file included from /home/wz18207/CLionProjects/Meta Algotirhm/meta/algorithm.h:2, from /home/wz18207/CLionProjects/Meta Algotirhm/main.cpp:3: /home/wz18207/CLionProjects/Meta Algotirhm/meta/list.h:54:99: note: provided for ‘template<class List, class IList> using at_list_t = typename meta::at_list::type’ template <typename List, typename IList> using at_list_t = typename at_list<List, IList>::type; ^ In file included from /home/wz18207/CLionProjects/Meta Algotirhm/main.cpp:3: /home/wz18207/CLionProjects/Meta Algotirhm/meta/algorithm.h:93:27: error: type/value mismatch at argument 1 in template parameter list for ‘template<class T> struct meta::is_type_list’ is_type_list<N>, bind_front<minus, size_t_t<N - 1>>::template result_t>>; ^ /home/wz18207/CLionProjects/Meta Algotirhm/meta/algorithm.h:93:27: note: expected a type, got ‘N’ /home/wz18207/CLionProjects/Meta Algotirhm/meta/algorithm.h:93:75: error: template argument 1 is invalid is_type_list<N>, bind_front<minus, size_t_t<N - 1>>::template result_t>>; ^~~~~~~~ /home/wz18207/CLionProjects/Meta Algotirhm/meta/algorithm.h:93:83: error: template argument 1 is invalid is_type_list<N>, bind_front<minus, size_t_t<N - 1>>::template result_t>>; ^~ /home/wz18207/CLionProjects/Meta Algotirhm/meta/algorithm.h:95:72: error: ‘rev_ilist’ is not a member of ‘meta::detail’ template <typename List> using reverse_t = at_list_t<List, detail::rev_ilist<List::size>>; ^~~~~~~~~ /home/wz18207/CLionProjects/Meta Algotirhm/meta/algorithm.h:95:88: error: type/value mismatch at argument 2 in template parameter list for ‘template<class List, class IList> using at_list_t = typename meta::at_list::type’ template <typename List> using reverse_t = at_list_t<List, detail::rev_ilist<List::size>>; ^~~~ /home/wz18207/CLionProjects/Meta Algotirhm/meta/algorithm.h:95:88: note: expected a type, got ‘(<expression error> < List::size)’ /home/wz18207/CLionProjects/Meta Algotirhm/main.cpp: In function ‘int main(int, char**)’: /home/wz18207/CLionProjects/Meta Algotirhm/main.cpp:10:17: error: ‘renameat’ does not name a type using Rep = renameat::repeat<void, 10000>; ^~~~~~~~ /home/wz18207/CLionProjects/Meta Algotirhm/main.cpp:11:39: error: ‘Rep’ was not declared in this scope constexpr bool v = meta::all_of_v<Rep, std::is_void>; ^~~ /home/wz18207/CLionProjects/Meta Algotirhm/main.cpp:11:30: error: template argument 1 is invalid constexpr bool v = meta::all_of_v<Rep, std::is_void>; ^~~~~~~~~~~~~~~~~~~~~~~~~~~ /home/wz18207/CLionProjects/Meta Algotirhm/main.cpp:12:32: error: type/value mismatch at argument 1 in template parameter list for ‘template<class List, class T> constexpr const size_t meta::count_v<List, T>’ constexpr size_t c = meta::count_v<Rep, void>; ^~~~~~~~~~~~~~~~~~ /home/wz18207/CLionProjects/Meta Algotirhm/main.cpp:12:32: note: expected a type, got ‘Rep’ /home/wz18207/CLionProjects/Meta Algotirhm/main.cpp:13:25: error: no matching function for call to ‘print_typename<Rep>()’ print_typename<Rep>(); ^ /home/wz18207/CLionProjects/Meta Algotirhm/main.cpp:5:6: note: candidate: ‘template<class T> void print_typename()’ void print_typename(){ ^~~~~~~~~~~~~~ /home/wz18207/CLionProjects/Meta Algotirhm/main.cpp:5:6: note: template argument deduction/substitution failed: make[3]: *** [CMakeFiles/Meta_Algotirhm.dir/build.make:63：CMakeFiles/Meta_Algotirhm.dir/main.cpp.o] 错误 1 make[2]: *** [CMakeFiles/Makefile2:76：CMakeFiles/Meta_Algotirhm.dir/all] 错误 2 make[1]: *** [CMakeFiles/Makefile2:83：CMakeFiles/Meta_Algotirhm.dir/rule] 错误 2 make: *** [Makefile:118：Meta_Algotirhm] 错误 2

如果可以的话，能告诉我关于该工程的makefile应该怎么写好呢，真的非常感谢！

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