1 // { dg-do "run" } 2 #include <cassert> 3 4 struct A 5 { 6 double a; 7 double b; 8 }; 9 10 struct B 11 { 12 A a; 13 }; 14 15 struct C 16 : public A { }; 17 18 struct D 19 { operator =D20 D& operator=(const D&) throw() { return *this; } 21 }; 22 23 struct E 24 { operator =E25 E& operator=(const E&) throw(int) { return *this; } 26 }; 27 28 struct E1 29 { operator =E130 E1& operator=(const E1&) throw(int) { throw int(); return *this; } 31 }; 32 33 struct F 34 { FF35 F() throw(int) { } 36 }; 37 38 struct G 39 { GG40 G() throw(int) { throw int(); } 41 }; 42 43 struct H 44 { operator =H45 H& operator=(H&) throw(int) { return *this; } 46 }; 47 48 struct H1 49 { operator =H150 H1& operator=(H1&) throw(int) { throw int(); return *this; } 51 }; 52 53 struct I 54 { operator =I55 I& operator=(I&) throw(int) { return *this; } operator =I56 I& operator=(const I&) throw() { return *this; } 57 }; 58 59 struct I1 60 { operator =I161 I1& operator=(I1&) throw(int) { throw int(); return *this; } operator =I162 I1& operator=(const I1&) throw() { return *this; } 63 }; 64 65 struct J 66 { operator =J67 J& operator=(J&) throw() { return *this; } operator =J68 J& operator=(const J&) throw() { return *this; } operator =J69 J& operator=(volatile J&) throw() { return *this; } operator =J70 J& operator=(const volatile J&) throw() { return *this; } 71 }; 72 73 struct K 74 { operator =K75 K& operator=(K&) throw() { return *this; } 76 }; 77 78 struct L 79 { operator =L80 L& operator=(const L&) throw() { return *this; } 81 }; 82 83 template<typename T> 84 bool f()85 f() 86 { return __has_nothrow_assign(T); } 87 88 template<typename T> 89 class My 90 { 91 public: 92 bool f()93 f() 94 { return !!__has_nothrow_assign(T); } 95 }; 96 97 template<typename T> 98 class My2 99 { 100 public: 101 static const bool trait = __has_nothrow_assign(T); 102 }; 103 104 template<typename T> 105 const bool My2<T>::trait; 106 107 template<typename T, bool b = __has_nothrow_assign(T)> 108 struct My3_help 109 { static const bool trait = b; }; 110 111 template<typename T, bool b> 112 const bool My3_help<T, b>::trait; 113 114 template<typename T> 115 class My3 116 { 117 public: 118 bool f()119 f() 120 { return My3_help<T>::trait; } 121 }; 122 123 #define PTEST(T) (__has_nothrow_assign(T) && f<T>() \ 124 && My<T>().f() && My2<T>::trait && My3<T>().f()) 125 126 #define NTEST(T) (!__has_nothrow_assign(T) && !f<T>() \ 127 && !My<T>().f() && !My2<T>::trait && !My3<T>().f()) 128 main()129int main() 130 { 131 assert (PTEST (int)); 132 assert (NTEST (int (int))); 133 assert (NTEST (void)); 134 assert (PTEST (A)); 135 assert (PTEST (B)); 136 assert (PTEST (C)); 137 assert (NTEST (C[])); 138 assert (PTEST (D)); 139 assert (NTEST (E)); 140 assert (NTEST (E1)); 141 assert (PTEST (F)); 142 assert (PTEST (G)); 143 assert (NTEST (H)); 144 assert (NTEST (H1)); 145 assert (NTEST (I)); 146 assert (NTEST (I1)); 147 assert (PTEST (J)); 148 assert (NTEST (const K)); 149 assert (NTEST (const L)); 150 151 return 0; 152 } 153