1 // RUN: %clang_cc1 -fsyntax-only -Wno-error=address-of-temporary -verify -std=gnu++11 %s 2 struct X { 3 X(); 4 X(int); 5 X(int, int); 6 }; 7 8 void f0() { (void)&X(); } // expected-warning{{taking the address of a temporary object}} 9 void f1() { (void)&X(1); } // expected-warning{{taking the address of a temporary object}} 10 void f2() { (void)&X(1, 2); } // expected-warning{{taking the address of a temporary object}} 11 void f3() { (void)&(X)1; } // expected-warning{{taking the address of a temporary object}} 12 13 14 namespace PointerToArrayDecay { 15 struct Y { 16 int a[4]; 17 }; 18 19 typedef int A[4]; 20 21 template<typename T> void consume(T); 22 struct S { int *p; }; 23 24 void g0() { int *p = Y().a; } // expected-warning{{pointer is initialized by a temporary array}} 25 void g1() { int *p = Y{}.a; } // expected-warning{{pointer is initialized by a temporary array}} 26 void g2() { int *p = A{}; } // expected-warning{{pointer is initialized by a temporary array}} 27 void g3() { int *p = (A){}; } // expected-warning{{pointer is initialized by a temporary array}} 28 29 void h0() { consume(Y().a); } 30 void h1() { consume(Y{}.a); } 31 void h2() { consume(A{}); } 32 void h3() { consume((A){}); } 33 34 void i0() { S s = { Y().a }; } // expected-warning{{pointer is initialized by a temporary array}} 35 void i1() { S s = { Y{}.a }; } // expected-warning{{pointer is initialized by a temporary array}} 36 void i2() { S s = { A{} }; } // expected-warning{{pointer is initialized by a temporary array}} 37 void i3() { S s = { (A){} }; } // expected-warning{{pointer is initialized by a temporary array}} 38 39 void j0() { (void)S { Y().a }; } 40 void j1() { (void)S { Y{}.a }; } 41 void j2() { (void)S { A{} }; } 42 void j3() { (void)S { (A){} }; } 43 44 void k0() { consume(S { Y().a }); } 45 void k1() { consume(S { Y{}.a }); } 46 void k2() { consume(S { A{} }); } 47 void k3() { consume(S { (A){} }); } 48 } 49
