39 lines · cpp
1// RUN: %clang_cc1 -fsyntax-only -Wunused-parameter -verify -std=c++11 %s2template<typename T>3struct X {4 T f0(T x);5 T f1(T x);6 T f2(T);7 template<typename U> U f3(U x);8 template<typename U> U f4(U x);9 template<typename U> U f5(U);10};11 12template<typename T> T X<T>::f0(T x) { return x; }13template<typename T> T X<T>::f1(T) { return T(); }14template<typename T> T X<T>::f2(T x) { return T(); } // expected-warning{{unused parameter 'x'}}15template<typename T> template<typename U> U X<T>::f3(U x) { return x; }16template<typename T> template<typename U> U X<T>::f4(U) { return U(); }17template<typename T> template<typename U> U X<T>::f5(U x) { return U(); } // expected-warning{{unused parameter 'x'}}18 19void test_X(X<int> &x, int i) {20 x.f0(i);21 x.f1(i);22 x.f2(i);23 x.f3(i);24 x.f4(i);25 x.f5(i);26}27 28// Make sure both parameters aren't considered unused.29template <typename... T>30static int test_pack(T... t, T... s)31{32 auto l = [&t...]() { return sizeof...(s); };33 return l();34}35 36// Do not warn on naked functions.37[[gnu::naked]] int nakedFunction(int a, float b, const char* c) { ; }38__attribute__((naked)) void nakedFunction(int a, int b) { ; }39