Compiler error for incorrect include order

FantasticMrFox — Fri, 21 Oct 2022 04:31:28 GMT

I have a program (attached) that has the following header order:

#include <CL/sycl/queue.hpp> #include <CL/sycl/kernel_handler.hpp> #include <CL/sycl/handler.hpp> #include <CL/sycl/specialization_id.hpp>

If i put the header order as follows:

#include <CL/sycl/specialization_id.hpp>
#include <CL/sycl/queue.hpp>
#include <CL/sycl/kernel_handler.hpp>
#include <CL/sycl/handler.hpp>

when compiled gives a large error:

In file included from /home/ben/development/hovermap/src/gpu_common/examples/specialisation_constant.cpp:1: In file included from /home/ben/development/hovermap/src/gpu_common/examples/specialisation_constant.hpp:3: /opt/intel/oneapi/compiler/2022.1.0/linux/bin-llvm/../include/sycl/CL/sycl/specialization_id.hpp:11:1: error: unknown type name '__SYCL_INLINE_NAMESPACE' __SYCL_INLINE_NAMESPACE(cl) { ^ /opt/intel/oneapi/compiler/2022.1.0/linux/bin-llvm/../include/sycl/CL/sycl/specialization_id.hpp:12:1: error: expected expression namespace sycl { ^ /opt/intel/oneapi/compiler/2022.1.0/linux/bin-llvm/../include/sycl/CL/sycl/specialization_id.hpp:38:2: error: expected ';' after top level declarator } // __SYCL_INLINE_NAMESPACE(cl) ^ In file included from /home/ben/development/hovermap/src/gpu_common/examples/specialisation_constant.cpp:1: In file included from /home/ben/development/hovermap/src/gpu_common/examples/specialisation_constant.hpp:4: In file included from /opt/intel/oneapi/compiler/2022.1.0/linux/bin-llvm/../include/sycl/CL/sycl/queue.hpp:11: /opt/intel/oneapi/compiler/2022.1.0/linux/bin-llvm/../include/sycl/CL/sycl/detail/assert_happened.hpp:21:25: error: redefinition of 'cl' as different kind of symbol __SYCL_INLINE_NAMESPACE(cl) { ^ /opt/intel/oneapi/compiler/2022.1.0/linux/bin-llvm/../include/sycl/CL/sycl/specialization_id.hpp:11:25: note: previous definition is here __SYCL_INLINE_NAMESPACE(cl) { ^ In file included from /home/ben/development/hovermap/src/gpu_common/examples/specialisation_constant.cpp:1: In file included from /home/ben/development/hovermap/src/gpu_common/examples/specialisation_constant.hpp:4: In file included from /opt/intel/oneapi/compiler/2022.1.0/linux/bin-llvm/../include/sycl/CL/sycl/queue.hpp:12: In file included from /opt/intel/oneapi/compiler/2022.1.0/linux/bin-llvm/../include/sycl/CL/sycl/detail/backend_traits.hpp:11: In file included from /opt/intel/oneapi/compiler/2022.1.0/linux/bin-llvm/../include/sycl/CL/sycl/backend_types.hpp:13: In file included from /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/fstream:38: In file included from /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/istream:38: In file included from /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/ios:38: In file included from /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/iosfwd:39: /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/stringfwd.h:79:11: error: no template named 'basic_string'; did you mean '__cxx11::basic_string'? typedef basic_string<char> string; ^ /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/stringfwd.h:74:11: note: '__cxx11::basic_string' declared here class basic_string; ^ /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/stringfwd.h:83:11: error: no template named 'basic_string'; did you mean '__cxx11::basic_string'? typedef basic_string<wchar_t> wstring; ^ /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/stringfwd.h:74:11: note: '__cxx11::basic_string' declared here class basic_string; ^ /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/stringfwd.h:93:11: error: no template named 'basic_string'; did you mean '__cxx11::basic_string'? typedef basic_string<char16_t> u16string; ^ /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/stringfwd.h:74:11: note: '__cxx11::basic_string' declared here class basic_string; ^ /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/stringfwd.h:96:11: error: no template named 'basic_string'; did you mean '__cxx11::basic_string'? typedef basic_string<char32_t> u32string; ^ /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/stringfwd.h:74:11: note: '__cxx11::basic_string' declared here class basic_string; ^ In file included from /home/ben/development/hovermap/src/gpu_common/examples/specialisation_constant.cpp:1: In file included from /home/ben/development/hovermap/src/gpu_common/examples/specialisation_constant.hpp:4: In file included from /opt/intel/oneapi/compiler/2022.1.0/linux/bin-llvm/../include/sycl/CL/sycl/queue.hpp:12: In file included from /opt/intel/oneapi/compiler/2022.1.0/linux/bin-llvm/../include/sycl/CL/sycl/detail/backend_traits.hpp:11: In file included from /opt/intel/oneapi/compiler/2022.1.0/linux/bin-llvm/../include/sycl/CL/sycl/backend_types.hpp:13: In file included from /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/fstream:38: In file included from /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/istream:38: In file included from /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/ios:38: In file included from /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/iosfwd:40: /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/postypes.h:98:11: error: unknown type name 'ptrdiff_t' typedef ptrdiff_t streamsize; // Signed integral type ^ In file included from /home/ben/development/hovermap/src/gpu_common/examples/specialisation_constant.cpp:1: In file included from /home/ben/development/hovermap/src/gpu_common/examples/specialisation_constant.hpp:4: In file included from /opt/intel/oneapi/compiler/2022.1.0/linux/bin-llvm/../include/sycl/CL/sycl/queue.hpp:12: In file included from /opt/intel/oneapi/compiler/2022.1.0/linux/bin-llvm/../include/sycl/CL/sycl/detail/backend_traits.hpp:11: In file included from /opt/intel/oneapi/compiler/2022.1.0/linux/bin-llvm/../include/sycl/CL/sycl/backend_types.hpp:13: In file included from /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/fstream:38: In file included from /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/istream:38: In file included from /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/ios:38: /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/iosfwd:147:11: error: no template named 'basic_stringbuf'; did you mean '__cxx11::basic_stringbuf'? typedef basic_stringbuf<char> stringbuf; ^ /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/iosfwd:96:11: note: '__cxx11::basic_stringbuf' declared here class basic_stringbuf; ^ /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/iosfwd:150:11: error: no template named 'basic_istringstream'; did you mean '__cxx11::basic_istringstream'? typedef basic_istringstream<char> istringstream; ^ /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/iosfwd:100:11: note: '__cxx11::basic_istringstream' declared here class basic_istringstream; ^ /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/iosfwd:153:11: error: no template named 'basic_ostringstream'; did you mean '__cxx11::basic_ostringstream'? typedef basic_ostringstream<char> ostringstream; ^ /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/iosfwd:104:11: note: '__cxx11::basic_ostringstream' declared here class basic_ostringstream; ^ /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/iosfwd:156:11: error: no template named 'basic_stringstream'; did you mean '__cxx11::basic_stringstream'? typedef basic_stringstream<char> stringstream; ^ /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/iosfwd:108:11: note: '__cxx11::basic_stringstream' declared here class basic_stringstream; ^ /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/iosfwd:187:11: error: no template named 'basic_stringbuf'; did you mean '__cxx11::basic_stringbuf'? typedef basic_stringbuf<wchar_t> wstringbuf; ^ /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/iosfwd:96:11: note: '__cxx11::basic_stringbuf' declared here class basic_stringbuf; ^ /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/iosfwd:190:11: error: no template named 'basic_istringstream'; did you mean '__cxx11::basic_istringstream'? typedef basic_istringstream<wchar_t> wistringstream; ^ /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/iosfwd:100:11: note: '__cxx11::basic_istringstream' declared here class basic_istringstream; ^ /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/iosfwd:193:11: error: no template named 'basic_ostringstream'; did you mean '__cxx11::basic_ostringstream'? typedef basic_ostringstream<wchar_t> wostringstream; ^ /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/iosfwd:104:11: note: '__cxx11::basic_ostringstream' declared here class basic_ostringstream; ^ /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/iosfwd:196:11: error: no template named 'basic_stringstream'; did you mean '__cxx11::basic_stringstream'? typedef basic_stringstream<wchar_t> wstringstream; ^ /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/iosfwd:108:11: note: '__cxx11::basic_stringstream' declared here class basic_stringstream; ^ In file included from /home/ben/development/hovermap/src/gpu_common/examples/specialisation_constant.cpp:1: In file included from /home/ben/development/hovermap/src/gpu_common/examples/specialisation_constant.hpp:4: In file included from /opt/intel/oneapi/compiler/2022.1.0/linux/bin-llvm/../include/sycl/CL/sycl/queue.hpp:12: In file included from /opt/intel/oneapi/compiler/2022.1.0/linux/bin-llvm/../include/sycl/CL/sycl/detail/backend_traits.hpp:11: In file included from /opt/intel/oneapi/compiler/2022.1.0/linux/bin-llvm/../include/sycl/CL/sycl/backend_types.hpp:13: In file included from /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/fstream:38: In file included from /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/istream:38: In file included from /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/ios:39: In file included from /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/exception:143: In file included from /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/exception_ptr.h:40: /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/new:125:39: error: no type named 'size_t' in namespace 'std'; did you mean simply 'size_t'? _GLIBCXX_NODISCARD void* operator new(std::size_t) _GLIBCXX_THROW (std::bad_alloc) ^~~~~ /opt/intel/oneapi/compiler/2022.1.0/linux/lib/clang/14.0.0/include/stddef.h:49:23: note: 'size_t' declared here typedef __SIZE_TYPE__ size_t; ^ In file included from /home/ben/development/hovermap/src/gpu_common/examples/specialisation_constant.cpp:1: In file included from /home/ben/development/hovermap/src/gpu_common/examples/specialisation_constant.hpp:4: In file included from /opt/intel/oneapi/compiler/2022.1.0/linux/bin-llvm/../include/sycl/CL/sycl/queue.hpp:12: In file included from /opt/intel/oneapi/compiler/2022.1.0/linux/bin-llvm/../include/sycl/CL/sycl/detail/backend_traits.hpp:11: In file included from /opt/intel/oneapi/compiler/2022.1.0/linux/bin-llvm/../include/sycl/CL/sycl/backend_types.hpp:13: In file included from /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/fstream:38: In file included from /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/istream:38: In file included from /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/ios:39: In file included from /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/exception:143: In file included from /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/exception_ptr.h:40: /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/new:127:41: error: no type named 'size_t' in namespace 'std'; did you mean simply 'size_t'? _GLIBCXX_NODISCARD void* operator new[](std::size_t) _GLIBCXX_THROW (std::bad_alloc) ^~~~~ /opt/intel/oneapi/compiler/2022.1.0/linux/lib/clang/14.0.0/include/stddef.h:49:23: note: 'size_t' declared here typedef __SIZE_TYPE__ size_t; ^ fatal error: too many errors emitted, stopping now [-ferror-limit=] 20 errors generated. make[2]: *** [CMakeFiles/using_specialisation_constant.dir/build.make:63: CMakeFiles/using_specialisation_constant.dir/examples/specialisation_constant.cpp.o] Error 1 make[1]: *** [CMakeFiles/Makefile2:628: CMakeFiles/using_specialisation_constant.dir/all] Error 2 make: *** [Makefile:141: all] Error 2

I think this is likely a bug, since header order should not matter.

This is compiled with:

/opt/intel/oneapi/compiler/2022.1.0/linux/bin/dpcpp -DROSCONSOLE_BACKEND_LOG4CXX -DROS_BUILD_SHARED_LIBS=1 -DROS_PACKAGE_NAME=\"gpu_common\" -I/home/ben/development/hovermap/src/gpu_common/include -I/opt/ros/noetic/include -I/opt/ros/noetic/share/xmlrpcpp/cmake/../../../include/xmlrpcpp -fclang-abi-compat=7 -fsycl --gcc-toolchain=/usr -sycl-std=2020 -fp-model=precise -Wall -Werror -fsycl -O2 -g -DNDEBUG -std=gnu++17 gpu_common/examples/specialisation_constant.cpp gpu_common/examples/using_specialisation_constant.cpp

Re:Compiler error for incorrect include order

ShivaniK_Intel — Wed, 26 Oct 2022 08:02:41 GMT

Hi,

Thanks for posting in the Intel forums.

We are able to reproduce the issue on our end. We are working on it and will get back to you.

Thanks & Regards

Shivani

Re:Compiler error for incorrect include order

ShivaniK_Intel — Wed, 02 Nov 2022 08:56:16 GMT

Hi,

The reason is that #include <CL/sycl.hpp> must be included in using_specialisation_constant.cpp and specialisation_constant.hpp.

Once it is included, you don't need the list of SYCL headers anymore.

Please let us know if you further face any issues.

Thanks & Regards

Shivani

Re: Compiler error for incorrect include order

FantasticMrFox — Wed, 02 Nov 2022 22:38:52 GMT

This is not a satisfactory solution. You are breaking the cpp core guidelines. Header files should be self contained.

I have linked the guideline. By including all of sycl, not just the required headers, you are making our code take longer to compile as well. This is not particularly nice.

With this solution you are also forcing us to break the core guideline: Avoid dependencies on implicity included header files.

We don't need this fixed now, but it is still a bug.

Re:Compiler error for incorrect include order

ShivaniK_Intel — Mon, 14 Nov 2022 09:28:06 GMT

Hi,

We are working on it and will get back to you .

Thanks & Regards

Shivani

Re:Compiler error for incorrect include order

ShivaniK_Intel — Mon, 21 Nov 2022 11:08:14 GMT

Hi,

Thanks for your patience.

Our development team is working on it and will let you know once it is fixed.

Thanks & Regards

Shivani

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