1 // RUN: %clang_cc1 -fsyntax-only -verify %s -std=c++98 2 // RUN: %clang_cc1 -fsyntax-only -verify %s -std=c++11 3 4 typedef __SIZE_TYPE__ size_t; 5 6 #if __cplusplus >= 201103L 7 struct S1 { 8 void *operator new(size_t n) { 9 return nullptr; // expected-warning {{'operator new' should not return a null pointer unless it is declared 'throw()' or 'noexcept'}} 10 } 11 void *operator new[](size_t n) noexcept { 12 return __null; 13 } 14 }; 15 #endif 16 17 struct S2 { 18 static size_t x; 19 void *operator new(size_t n) throw() { 20 return 0; 21 } 22 void *operator new[](size_t n) { 23 return (void*)0; 24 #if __cplusplus >= 201103L 25 // expected-warning@-2 {{'operator new[]' should not return a null pointer unless it is declared 'throw()' or 'noexcept'}} 26 #else 27 // expected-warning-re@-4 {{'operator new[]' should not return a null pointer unless it is declared 'throw()'{{$}}}} 28 #endif 29 } 30 }; 31 32 struct S3 { 33 void *operator new(size_t n) { 34 return 1-1; 35 #if __cplusplus >= 201103L 36 // expected-error@-2 {{cannot initialize return object of type 'void *' with an rvalue of type 'int'}} 37 #else 38 // expected-warning@-4 {{expression which evaluates to zero treated as a null pointer constant of type 'void *'}} 39 // expected-warning@-5 {{'operator new' should not return a null pointer unless it is declared 'throw()'}} 40 #endif 41 } 42 void *operator new[](size_t n) { 43 return (void*)(1-1); // expected-warning {{'operator new[]' should not return a null pointer unless it is declared 'throw()'}} 44 } 45 }; 46 47 #if __cplusplus >= 201103L 48 template<bool B> struct S4 { 49 void *operator new(size_t n) noexcept(B) { 50 return 0; // expected-warning {{'operator new' should not return a null pointer}} 51 } 52 }; 53 template struct S4<true>; 54 template struct S4<false>; // expected-note {{in instantiation of}} 55 #endif 56 57 template<typename ...T> struct S5 { // expected-warning 0-1{{extension}} 58 void *operator new(size_t n) throw(T...) { 59 return 0; // expected-warning {{'operator new' should not return a null pointer}} 60 } 61 }; 62 template struct S5<>; 63 template struct S5<int>; // expected-note {{in instantiation of}} 64
