Fix logging macros to build with msvc and cpp20 #2063
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Signed-off-by: Mateusz Szczygielski <mateusz.szczygielski@robotec.ai>
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Signed-off-by: Mateusz Szczygielski <mateusz.szczygielski@robotec.ai> Signed-off-by: Mateusz Szczygielski <mateusz.szczygielski@robotec.ai> (cherry picked from commit 86335dd)
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Signed-off-by: Mateusz Szczygielski <mateusz.szczygielski@robotec.ai> Signed-off-by: Mateusz Szczygielski <mateusz.szczygielski@robotec.ai> (cherry picked from commit 86335dd) Co-authored-by: Mateusz Szczygielski <112629916+msz-rai@users.noreply.github.com>
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When I was building my project (CMAKE_CXX_STANDARD 20) with rclcpp on Windows, it failed with the same error as described in #1973 (c++17 + permissive flag added to MSVC). The same flag is set implicitly with C++20 because is required for C++20 Modules support.
I was trying to investigate why the template in logging macro is not passing standards conformance, but I was not able to find it out. It seems to be an MSVC issue. A similar problem was reported in Microsoft Developer Community more than a year ago and has not been resolved yet.
I used helper type aliases from
type_traitsinstead of member types. This change makes rclcpp build successfully with MSVC and C++20.