Function UNUSED

Bcore/src/main/cpp/android-base/macros.h:130–131

// to avoid compiler warnings. Going forward we prefer ATTRIBUTE_UNUSED.
template <typename... T>
void UNUSED(const T&...) {
}

// An attribute to place on a parameter to a function, for example:
//   int foo(int x ATTRIBUTE_UNUSED) { return 10; }