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