1 | // RUN: %clang_cc1 -fsyntax-only -verify %s -triple x86_64-pc-linux-gnu |
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 integral 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" : "=r"(*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 | template<typename T> |
174 | void rdar10283928(int count) { |
175 | (void)new char[count](); |
176 | } |
177 | |
178 | template void rdar10283928<int>(int); |
179 | } |
180 | |
181 | namespace PR10864 { |
182 | template<typename T> class Vals {}; |
183 | template<> class Vals<int> { public: static const int i = 1; }; |
184 | template<> class Vals<float> { public: static const double i; }; |
185 | template<typename T> void test_asm_tied(T o) { |
186 | __asm("addl $1, %0" : "=r" (o) : "0"(Vals<T>::i)); // expected-error {{input with type 'double' matching output with type 'float'}} |
187 | } |
188 | void test_asm_tied() { |
189 | test_asm_tied(1); |
190 | test_asm_tied(1.f); // expected-note {{instantiation of}} |
191 | } |
192 | } |
193 | |