Intel Compiler & stdc++fs & debug mode doesn't work

[Wani__Nehal]

$ cat main.x.cpp 
#include <iostream>
#include <experimental/filesystem>
namespace fs = std::experimental::filesystem;
int main()
{
    std::cout << "Current path is " << fs::current_path() << '\n';
}

$ icpc main.x.cpp -lstdc++fs -std=c++14   # Works!


$ icpc main.x.cpp -lstdc++fs -std=c++14 -g   # Doesn't work
/spare/scratch/icpcNgdXiG.o: In function `std::basic_string<char, std::char_traits<char>, std::allocator<char> > std::experimental::filesystem::v1::path::string<char, std::char_traits<char>, std::allocator<char> >(std::allocator<char> const&) const':
/spare/scratch/tmp-e31ZpjU-infra/gcc/5.4.0/include/c++/5.4.0/experimental/fs_path.h:822: undefined reference to `std::codecvt_utf8<char, 1114111ul, (std::codecvt_mode)0>::codecvt_utf8(unsigned long)'
/spare/scratch/tmp-e31ZpjU-infra/gcc/5.4.0/include/c++/5.4.0/experimental/fs_path.h:822: undefined reference to `std::codecvt_utf8<char, 1114111ul, (std::codecvt_mode)0>::~codecvt_utf8()'
/spare/scratch/tmp-e31ZpjU-infra/gcc/5.4.0/include/c++/5.4.0/experimental/fs_path.h:825: undefined reference to `std::codecvt_utf8<char, 1114111ul, (std::codecvt_mode)0>::~codecvt_utf8()'

$ icpc main.x.cpp -lstdc++fs -std=c++14 -g -mGLOB_opt_level=1  # Works!

This has been tested with Intel compilers 16 to 19 and the behavior is same.

[RahulV_intel]

Hi,

It looks like a bug. We are able to reproduce this error. We will escalate this issue to the concerned team.

Rahul

[Viet_H_Intel]

I've opened a case with the compiler Developer. Case# is CMPLRIL0-32514. Thanks,

[Viet_H_Intel]

Can you use one of these workarounds?

$ icpc t3.cpp -std=c++14  -lstdc++fs -g -O1

$ icpc t3.cpp -std=c++14  -lstdc++fs -g -O2

$ icpc t3.cpp -std=c++14  -lstdc++fs -g -O3

$ icpx t3.cpp -std=c++14  -lstdc++fs -g

$

Thanks,

[ArpitaP_Intel]

Hi Nehal,

Could you please let us know if your issue is resolved or not?

Regards,

Arpita

[PrasanthD_intel]

Hi Nehal,

We are closing this thread as we haven't heard back from you. 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

Regards

Prasanth