/usr/include/tbb/pipeline.h:328:74: error: 'has_trivial_copy_constructor' is not a member of 'std'

[nschloe]

A recent Debian test with GCC7 failed with the TBB compilation error

/usr/include/tbb/pipeline.h:328:74: error: 'has_trivial_copy_constructor' is not a member of 'std'

(Coming from
https://github.com/01org/tbb/blob/a602c7dd54ca5e1d6b5a6b8e3289f0f70fc466a9/include/tbb/pipeline.h#L326.)

[turbo]

From the GCC 7 WIP Docs:

The non-standard C++0x type traits has_trivial_default_constructor, has_trivial_copy_constructor and has_trivial_copy_assign have been removed.

This trait is not going to be part of GCC moving forward and is correctly marked as "not in std".

[daniel-j-h]

I just encountered the same issue with GCC 7.1 and a TBB release from 2015. Here's the code:

• https://github.com/01org/tbb/blob/2017_U7/include/tbb/pipeline.h#L324-L329
• https://github.com/01org/tbb/blob/2017_U7/include/tbb/tbb_config.h#L296-L297

GCC 7.1 works fine with the latest release (2017 U7 atm) and probably all releases from 2017.

[akukanov]

The code in pipeline.h was fixed to use std::is_trivially_copyable when available as long as three years ago in TBB 4.3. The code still uses has_trivial_copy_constructor, but under preprocessor conditions that only allow its use with old compilers. Since then there were many other fixes and improvements for C++11 and newest compilers, so I highly recommend to update the version of TBB that you use.

[nschloe]

Thanks for the comment. I'll see what I can do to update Debian's TBB version.