57 lines · cpp
1// RUN: %clang_cc1 -fsyntax-only -Wno-error=address-of-temporary -verify -std=gnu++11 %s2struct X {3 X();4 X(int);5 X(int, int);6};7 8void f0() { (void)&X(); } // expected-warning{{taking the address of a temporary object}}9void f1() { (void)&X(1); } // expected-warning{{taking the address of a temporary object}}10void f2() { (void)&X(1, 2); } // expected-warning{{taking the address of a temporary object}}11void f3() { (void)&(X)1; } // expected-warning{{taking the address of a temporary object}}12 13 14namespace PointerToArrayDecay {15 struct Y {16 int a[4];17 };18 struct Z {19 int n;20 ~Z();21 };22 23 typedef int A[4];24 typedef Z AZ[4];25 26 template<typename T> void consume(T);27 struct S { int *p; };28 29 void g0() { int *p = Y().a; } // expected-warning{{will be destroyed at the end of the full-expression}}30 void g1() { int *p = Y{}.a; } // expected-warning{{will be destroyed at the end of the full-expression}}31 void g2() { int *p = A{}; } // expected-warning{{will be destroyed at the end of the full-expression}}32 void g3() { int *p = (A){}; } // expected-warning{{will be destroyed at the end of the full-expression}}33 void g4() { Z *p = AZ{}; } // expected-warning{{will be destroyed at the end of the full-expression}}34 void g5() { Z *p = &(Z&)(AZ{}[0]); } // expected-warning{{will be destroyed at the end of the full-expression}}35 36 void h0() { consume(Y().a); }37 void h1() { consume(Y{}.a); }38 void h2() { consume(A{}); }39 void h3() { consume((A){}); }40 void h4() { consume(AZ{}); }41 42 void i0() { S s = { Y().a }; } // expected-warning{{will be destroyed at the end of the full-expression}}43 void i1() { S s = { Y{}.a }; } // expected-warning{{will be destroyed at the end of the full-expression}}44 void i2() { S s = { A{} }; } // expected-warning{{will be destroyed at the end of the full-expression}}45 void i3() { S s = { (A){} }; } // expected-warning{{will be destroyed at the end of the full-expression}}46 47 void j0() { (void)S { Y().a }; }48 void j1() { (void)S { Y{}.a }; }49 void j2() { (void)S { A{} }; }50 void j3() { (void)S { (A){} }; }51 52 void k0() { consume(S { Y().a }); }53 void k1() { consume(S { Y{}.a }); }54 void k2() { consume(S { A{} }); }55 void k3() { consume(S { (A){} }); }56}57