1 // RUN: %clang_cc1 -fsyntax-only -verify -Wunused -Wunused-member-function %s 2 3 static void f1(); // expected-warning{{unused}} 4 5 namespace { 6 void f2(); // expected-warning{{unused}} 7 8 void f3() { } // expected-warning{{unused}} 9 10 struct S { 11 void m1() { } // expected-warning{{unused}} 12 void m2(); // expected-warning{{unused}} 13 void m3(); 14 S(const S&); 15 void operator=(const S&); 16 }; 17 18 template <typename T> 19 struct TS { 20 void m(); 21 }; 22 template <> void TS<int>::m() { } // expected-warning{{unused}} 23 24 template <typename T> 25 void tf() { } 26 template <> void tf<int>() { } // expected-warning{{unused}} 27 28 struct VS { 29 virtual void vm() { } 30 }; 31 32 struct SVS : public VS { 33 void vm() { } 34 }; 35 } 36 37 void S::m3() { } // expected-warning{{unused}} 38 39 static inline void f4() { } 40 const unsigned int cx = 0; 41 42 static int x1; // expected-warning{{unused}} 43 44 namespace { 45 int x2; // expected-warning{{unused}} 46 47 struct S2 { 48 static int x; // expected-warning{{unused}} 49 }; 50 51 template <typename T> 52 struct TS2 { 53 static int x; 54 }; 55 template <> int TS2<int>::x; // expected-warning{{unused}} 56 } 57 58 namespace PR8841 { 59 // Ensure that friends of class templates are considered to have a dependent 60 // context and not marked unused. 61 namespace { 62 template <typename T> struct X { 63 friend bool operator==(const X&, const X&) { return false; } 64 }; 65 } 66 template <typename T> void template_test(X<T> x) { 67 (void)(x == x); 68 } 69 void test() { 70 X<int> x; 71 template_test(x); 72 } 73 } 74 75 namespace test4 { 76 namespace { struct A {}; } 77 78 void test(A a); // expected-warning {{unused function}} 79 extern "C" void test4(A a); 80 } 81 82 namespace rdar8733476 { 83 static void foo() { } // expected-warning {{not needed and will not be emitted}} 84 85 template <int> 86 void bar() { 87 foo(); 88 } 89 } 90
