GCC 9.3.0 is failing to compile roudi_app.cpp

[marthtz]

Required information

Operating system: Ubuntu 18.04 LTS

Compiler version: GCC 9.3

Observed result or behaviour: GCC 9.3 is failing to compile roudi_app.cpp:

/iceoryx/iceoryx_posh/source/roudi/application/roudi_app.cpp: In member function 'void iox::roudi::RouDiApp::parseCmdLineArguments(int, char**, iox::roudi::CmdLineParser::CmdLineArgumentParsingMode)':
/iceoryx/iceoryx_posh/source/roudi/application/roudi_app.cpp:180:19: error: use of deleted function 'constexpr iox::roudi::CmdLineParser::CmdLineParser()'
  180 |     CmdLineParser cmdLineParser;
      |                   ^~~~~~~~~~~~~

In file included from /iceoryx/iceoryx_posh/include/iceoryx_posh/roudi/roudi_app.hpp:19,
                 from /iceoryx/iceoryx_posh/source/roudi/application/roudi_app.cpp:15:
/iceoryx/iceoryx_posh/include/iceoryx_posh/roudi/roudi_cmd_line_parser.hpp:46:5: note: 'constexpr iox::roudi::CmdLineParser::CmdLineParser() noexcept' is implicitly deleted because its exception-specification does not match the implicit exception-specification 'noexcept (false)'
   46 |     CmdLineParser() noexcept = default;

Expected result or behaviour: Can compile

Conditions where it occurred / Performed steps: Compile with GCC 9.3

[elBoberido]

Weird. I can compile it with GCC 9.3 on Ubuntu 20.04 and @elfenpiff on gentoo. Can you verify that it fails on master?

[elfenpiff]

I verified it just now and it compiles with the current master! Verified compiler versions:

• gcc-9.3.0 (Gentoo)
• gcc-10.2.0 (@FerdinandSpitzschnueffler on ArchLinux)
• clang-10.0.1 (Gentoo)

I would close the issue or @marthtz do you have any additional information on howto reproduce this bug?

[elfenpiff]

@marthtz any news? Does the bug still persist?

[marthtz]

Ok, that's good news. Basically, I just forwarded the issue as I don't have a working Ubuntu 20 setup right now. As @elBoberido and @elfenpiff confirm it's working on various systems I'll close the issue! Thanks for checking guys!