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It's a header-only class[0], and "using namespace" in headers is discouraged. [0] https://github.com/sol-prog/cpp17-filewatcher/blob/master/FileWatcher.h https

• Someone 8y ago
  But one could use it scoped to the FileWatcher class or to each member function, or is my C++ too rusty?
  • favorited 8y ago
    IIRC it can be used from namespace or function scope, but not class.
  • jhalstead 8y ago
    I think it's too rusty, unless I'm misunderstanding https://abseil.io/tips/153 https://abseil.io/tips/153. It says, The vast majority of C++ users think that the using-directive is injecting names into the scope where it’s declared. ... In reality, the names are injected into the nearest common ancestor of the target namespace (::testing) and the usage namespace (::totw::example::anomymous). In our example, that’s the global namespace!
    • deleted 8y ago
      [deleted]