[jira] [Created] (MESOS-6895) Loop uses dependent nested names for friend declaration which isn't supported by clang

["Benjamin Bannier (JIRA)" <ji...@apache.org>]

Benjamin Bannier created MESOS-6895:
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             Summary: Loop uses dependent nested names for friend declaration which isn't supported by clang
                 Key: MESOS-6895
                 URL: https://issues.apache.org/jira/browse/MESOS-6895
             Project: Mesos
          Issue Type: Bug
          Components: libprocess
    Affects Versions: 1.2.0
            Reporter: Benjamin Bannier


https://reviews.apache.org/r/54358/ ({{bbb4058d60}}) introduced {{ControlFlow}} for {{process::loop}}. Here a dependent nested name specifier is used in a friend declaration which is not supported by clang.
{code}
In file included from ../../../3rdparty/libprocess/src/tests/loop_tests.cpp:20:
/private/tmp/mesos.master/3rdparty/libprocess/include/process/loop.hpp|214 col 32| warning: dependent nested name specifier 'ControlFlow<U>::' for friend class declaration is not supported; turning off access control for 'ControlFlow' [-Wunsupported-friend]
  friend class ControlFlow<U>::Continue;
               ~~~~~~~~~~~~~~~~^
/private/tmp/mesos.master/3rdparty/libprocess/include/process/loop.hpp|216 col 32| warning: dependent nested name specifier 'ControlFlow<U>::' for friend class declaration is not supported; turning off access control for 'ControlFlow' [-Wunsupported-friend]
  friend class ControlFlow<U>::Break;
               ~~~~~~~~~~~~~~~~^
{code}



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