1 // RUN: %clang_cc1 -fsyntax-only -Wunused-variable -Wunused-value -verify %s 2 template<typename T> void f() { 3 T t; 4 t = 17; 5 } 6 7 // PR5407 8 struct A { A(); }; 9 struct B { ~B(); }; 10 void f() { 11 A a; 12 B b; 13 } 14 15 // PR5531 16 namespace PR5531 { 17 struct A { 18 }; 19 20 struct B { 21 B(int); 22 }; 23 24 struct C { 25 ~C(); 26 }; 27 28 void test() { 29 A(); 30 B(17); 31 C(); 32 } 33 } 34 35 36 struct X { 37 int foo() __attribute__((warn_unused_result)); 38 }; 39 40 void bah() { 41 X x, *x2; 42 x.foo(); // expected-warning {{ignoring return value of function declared with warn_unused_result attribute}} 43 x2->foo(); // expected-warning {{ignoring return value of function declared with warn_unused_result attribute}} 44 } 45 46 template<typename T> 47 struct X0 { }; 48 49 template<typename T> 50 void test_dependent_init(T *p) { 51 X0<int> i(p); 52 (void)i; 53 } 54 55 namespace PR6948 { 56 template<typename T> class X; 57 58 void f() { 59 X<char> str (read_from_file()); // expected-error{{use of undeclared identifier 'read_from_file'}} 60 } 61 } 62