topic Re:icpx `std::views::zip` compile error in Intel® oneAPI DPC++/C++ Compiler

icpx `std::views::zip` compile error

PeterFačko — Sat, 02 Mar 2024 21:46:24 GMT

Hello, when compiling this source code:

#include <algorithm> #include <execution> #include <ranges> #include <utility> #include <vector> int main(int argc, char** argv) { const auto input = std::vector<int>(100); auto output_a = std::vector<int>(input.size()); auto output_b = std::vector<int>(input.size()); auto zipped = std::views::zip(output_a, output_b); std::transform(std::execution::par_unseq, input.begin(), input.end(), zipped.begin(), [](auto) -> std::pair<int, int> { return {}; }); return 0; }

with:

icpx -std=c++23 -qtbb test.cpp -o test

I get:

In file included from test.cpp:3: /usr/lib64/gcc/x86_64-pc-linux-gnu/13.2.1/../../../../include/c++/13.2.1/ranges:4558:14: error: type constraint differs in template redeclaration 4558 | template<copy_constructible _Fp, input_range... _Ws> | ^ /usr/lib64/gcc/x86_64-pc-linux-gnu/13.2.1/../../../../include/c++/13.2.1/ranges:4458:14: note: in instantiation of template class 'std::ranges::zip_view<std::ranges::ref_view<std::vector<int>>, std::ranges::ref_view<std::vector<int>>>::_Iterator<true>' requested here 4458 | { return _Iterator<true>(__detail::__tuple_transform(ranges::begin, _M_views)); } | ^ test.cpp:19:27: note: in instantiation of member function 'std::ranges::zip_view<std::ranges::ref_view<std::vector<int>>, std::ranges::ref_view<std::vector<int>>>::begin' requested here 19 | zipped.begin(), | ^ /usr/lib64/gcc/x86_64-pc-linux-gnu/13.2.1/../../../../include/c++/13.2.1/ranges:4829:12: note: previous template declaration is here 4829 | template<copy_constructible _Fp, input_range... _Vs> | ^ /usr/lib64/gcc/x86_64-pc-linux-gnu/13.2.1/../../../../include/c++/13.2.1/ranges:4558:14: error: type constraint differs in template redeclaration 4558 | template<copy_constructible _Fp, input_range... _Ws> | ^ /usr/lib64/gcc/x86_64-pc-linux-gnu/13.2.1/../../../../include/c++/13.2.1/ranges:4458:30: note: in instantiation of template class 'std::ranges::zip_view<std::ranges::ref_view<std::vector<int>>, std::ranges::ref_view<std::vector<int>>>::_Iterator<false>' requested here 4458 | { return _Iterator<true>(__detail::__tuple_transform(ranges::begin, _M_views)); } | ^ test.cpp:19:27: note: in instantiation of member function 'std::ranges::zip_view<std::ranges::ref_view<std::vector<int>>, std::ranges::ref_view<std::vector<int>>>::begin' requested here 19 | zipped.begin(), | ^ /usr/lib64/gcc/x86_64-pc-linux-gnu/13.2.1/../../../../include/c++/13.2.1/ranges:4829:12: note: previous template declaration is here 4829 | template<copy_constructible _Fp, input_range... _Vs> | ^ 2 errors generated.

When compiling with:

g++ -std=c++23 -ltbb test.cpp -o test

the compilation is successful.

[fackop@PPpc-main PPtrading]$ g++ --version g++ (GCC) 13.2.1 20230801 Copyright (C) 2023 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. [fackop@PPpc-main PPtrading]$ icpx --version Intel(R) oneAPI DPC++/C++ Compiler 2024.0.2 (2024.0.2.20231213) Target: x86_64-unknown-linux-gnu Thread model: posix InstalledDir: /opt/intel/oneapi/compiler/2024.0/bin/compiler Configuration file: /opt/intel/oneapi/compiler/2024.0/bin/compiler/../icpx.cfg

Is this a bug? Thank you in advance for any help.

Peter Fačko

Re:icpx `std::views::zip` compile error

Vipin_S_Intel — Thu, 07 Mar 2024 13:03:18 GMT

Hi Peter, we would like to inform you that we are routing your query to the dedicated team for further assistance.

Thanks!

Re: Re:icpx `std::views::zip` compile error

PeterFačko — Tue, 12 Mar 2024 08:16:03 GMT

Hi, is there any update on this?

Re:icpx `std::views::zip` compile error

Mayur_P_Intel — Tue, 12 Mar 2024 10:22:47 GMT

Hi Peter, we have been able to reproduce the issue and have raised it with the developer team.

Re:icpx `std::views::zip` compile error

Mayur_P_Intel — Fri, 15 Mar 2024 13:59:27 GMT

To get this to work we need newer library that has this change: https://github.com/gcc-mirror/gcc/commit/be34a8b538c0f04b11a428bd1a9340eb19dec13f

With that library change applied to a preprocessed version of the test case, icpx compiles it okay.

cp /path-of-ranges-file myinclude

cd myinclude

patch ranges be34a8b538c0f04b11a428bd1a9340eb19dec13f.diff (patch link - https://github.com/gcc-mirror/gcc/commit/be34a8b538c0f04b11a428bd1a9340eb19dec13f.diff )

icpx -Imyinclude -std=c++23 test.cpp -- compiles fine

Re: Re:icpx `std::views::zip` compile error

arctic_circle — Sat, 23 Mar 2024 10:57:29 GMT

Dear Mayurp,

I am sorry for posting off topic but I am unable to post any questions in the forum. When I try to post a question I get this error:

"An Unexpected Error has occurred.
Your request failed. Please contact your system administrator and provide the date and time you received the error and this Exception ID: 558D0528."

Can you please let me know how to fix this and post questions? I would like to post a question about compiling DLLs with oneAPI (specifically, how to ensure that function names are exported properly - sqrt() and some other math functions seem to be interfering with exporting functions) but I can't post questions. Thank you

Re:icpx `std::views::zip` compile error

Mayur_P_Intel — Wed, 27 Mar 2024 06:06:48 GMT

I will ask the relevant team to look into this.

Re:icpx `std::views::zip` compile error

Mayur_P_Intel — Wed, 27 Mar 2024 06:07:14 GMT

This issue has been resolved and we will no longer respond to this thread. If you require additional assistance from Intel, please start a new thread. Any further interaction in this thread will be considered community only.