HelenOS sources

is_function        37 uspace/lib/cpp/include/__bits/type_traits/result_of.hpp     struct is_function;
is_function        61 uspace/lib/cpp/include/__bits/type_traits/result_of.hpp             is_function<typename decay<typename remove_pointer<F>::type>::type>::value ||
is_function       185 uspace/lib/cpp/include/__bits/type_traits/type_traits.hpp     struct is_function;
is_function       194 uspace/lib/cpp/include/__bits/type_traits/type_traits.hpp         struct is_member_function_pointer<T U::*>: is_function<T>
is_function       427 uspace/lib/cpp/include/__bits/type_traits/type_traits.hpp     inline constexpr bool is_function_v = is_function<T>::value;