Trigger static_assert even when function signature is invalid, C++ (clang)

Trigger static_assert even when function signature is invalid

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Compilation time: 0.12 sec, absolute service time: 0,21 sec

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Error(s):

source_file.cpp:17:3: error: static_assert failed "the template parameter to f should be `foo` or `bar`"
  static_assert(std::is_base_of<compatible_with_f, T>::value,
  ^             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
source_file.cpp:33:3: note: in instantiation of function template specialization 'f<int>' requested here
  f<int>(0); // error: no matching function for call to 'f'
  ^
1 error generated.

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