1 // RUN: %clang_cc1 -fsyntax-only -verify %s 2 template<int I, int J> 3 struct Bitfields { 4 int simple : I; // expected-error{{bit-field 'simple' has zero width}} 5 int parens : (J); 6 }; 7 8 void test_Bitfields(Bitfields<0, 5> *b) { 9 (void)sizeof(Bitfields<10, 5>); 10 (void)sizeof(Bitfields<0, 1>); // expected-note{{in instantiation of template class 'Bitfields<0, 1>' requested here}} 11 } 12 13 template<int I, int J> 14 struct BitfieldPlus { 15 int bitfield : I + J; // expected-error{{bit-field 'bitfield' has zero width}} 16 }; 17 18 void test_BitfieldPlus() { 19 (void)sizeof(BitfieldPlus<0, 1>); 20 (void)sizeof(BitfieldPlus<-5, 5>); // expected-note{{in instantiation of template class 'BitfieldPlus<-5, 5>' requested here}} 21 } 22 23 template<int I, int J> 24 struct BitfieldMinus { 25 int bitfield : I - J; // expected-error{{bit-field 'bitfield' has negative width (-1)}} \ 26 // expected-error{{bit-field 'bitfield' has zero width}} 27 }; 28 29 void test_BitfieldMinus() { 30 (void)sizeof(BitfieldMinus<5, 1>); 31 (void)sizeof(BitfieldMinus<0, 1>); // expected-note{{in instantiation of template class 'BitfieldMinus<0, 1>' requested here}} 32 (void)sizeof(BitfieldMinus<5, 5>); // expected-note{{in instantiation of template class 'BitfieldMinus<5, 5>' requested here}} 33 } 34 35 template<int I, int J> 36 struct BitfieldDivide { 37 int bitfield : I / J; // expected-error{{expression is not an integer constant expression}} \ 38 // expected-note{{division by zero}} 39 }; 40 41 void test_BitfieldDivide() { 42 (void)sizeof(BitfieldDivide<5, 1>); 43 (void)sizeof(BitfieldDivide<5, 0>); // expected-note{{in instantiation of template class 'BitfieldDivide<5, 0>' requested here}} 44 } 45 46 template<typename T, T I, int J> 47 struct BitfieldDep { 48 int bitfield : I + J; 49 }; 50 51 void test_BitfieldDep() { 52 (void)sizeof(BitfieldDep<int, 1, 5>); 53 } 54 55 template<int I> 56 struct BitfieldNeg { 57 int bitfield : (-I); // expected-error{{bit-field 'bitfield' has negative width (-5)}} 58 }; 59 60 template<typename T, T I> 61 struct BitfieldNeg2 { 62 int bitfield : (-I); // expected-error{{bit-field 'bitfield' has negative width (-5)}} 63 }; 64 65 void test_BitfieldNeg() { 66 (void)sizeof(BitfieldNeg<-5>); // okay 67 (void)sizeof(BitfieldNeg<5>); // expected-note{{in instantiation of template class 'BitfieldNeg<5>' requested here}} 68 (void)sizeof(BitfieldNeg2<int, -5>); // okay 69 (void)sizeof(BitfieldNeg2<int, 5>); // expected-note{{in instantiation of template class 'BitfieldNeg2<int, 5>' requested here}} 70 } 71 72 template<typename T> 73 void increment(T &x) { 74 (void)++x; 75 } 76 77 struct Incrementable { 78 Incrementable &operator++(); 79 }; 80 81 void test_increment(Incrementable inc) { 82 increment(inc); 83 } 84 85 template<typename T> 86 void add(const T &x) { 87 (void)(x + x); 88 } 89 90 namespace PR6237 { 91 template <typename T> 92 void f(T t) { 93 t++; 94 } 95 96 struct B { }; 97 B operator++(B &, int); 98 99 template void f(B); 100 } 101 102 struct Addable { 103 Addable operator+(const Addable&) const; 104 }; 105 106 void test_add(Addable &a) { 107 add(a); 108 } 109 110 struct CallOperator { 111 int &operator()(int); 112 double &operator()(double); 113 }; 114 115 template<typename Result, typename F, typename Arg1> 116 Result test_call_operator(F f, Arg1 arg1) { 117 // PR5266: non-dependent invocations of a function call operator. 118 CallOperator call_op; 119 int &ir = call_op(17); 120 return f(arg1); 121 } 122 123 void test_call_operator(CallOperator call_op, int i, double d) { 124 int &ir = test_call_operator<int&>(call_op, i); 125 double &dr = test_call_operator<double&>(call_op, d); 126 } 127 128 template<typename T> 129 void test_asm(T t) { 130 asm ("nop" : "=a"(*t) : "r"(*t)); // expected-error {{indirection requires pointer operand ('int' invalid)}} 131 } 132 133 void test_asm() { 134 int* a; 135 test_asm(a); 136 137 int b; 138 test_asm(b); // expected-note {{in instantiation of function template specialization 'test_asm<int>' requested here}} 139 } 140 141 namespace PR6424 { 142 template<int I> struct X { 143 X() { 144 int *ip = I; // expected-error{{cannot initialize a variable of type 'int *' with an rvalue of type 'int'}} 145 } 146 }; 147 148 template<int> struct Y { 149 typedef X<7> X7; 150 151 void f() { X7(); } // expected-note{{instantiation}} 152 }; 153 154 template void Y<3>::f(); 155 156 template<int I> 157 struct X2 { 158 void *operator new(__SIZE_TYPE__) { 159 int *ip = I; // expected-error{{cannot initialize a variable of type 'int *' with an rvalue of type 'int'}} 160 return ip; 161 } 162 }; 163 164 template<int> struct Y2 { 165 typedef X2<7> X; 166 void f() { 167 new X(); // expected-note{{instantiation of}} 168 } 169 }; 170 171 template void Y2<3>::f(); 172 } 173
