1// RUN: %clang_cc1 -fsyntax-only -Wall -Wuninitialized -Wno-unused-value -std=c++11 -verify %s 2 3// definitions for std::move 4namespace std { 5inline namespace foo { 6template <class T> struct remove_reference { typedef T type; }; 7template <class T> struct remove_reference<T&> { typedef T type; }; 8template <class T> struct remove_reference<T&&> { typedef T type; }; 9 10template <class T> typename remove_reference<T>::type&& move(T&& t); 11} 12} 13 14int foo(int x); 15int bar(int* x); 16int boo(int& x); 17int far(const int& x); 18int moved(int&& x); 19int &ref(int x); 20 21// Test self-references within initializers which are guaranteed to be 22// uninitialized. 23int a = a; // no-warning: used to signal intended lack of initialization. 24int b = b + 1; // expected-warning {{variable 'b' is uninitialized when used within its own initialization}} 25int c = (c + c); // expected-warning 2 {{variable 'c' is uninitialized when used within its own initialization}} 26int e = static_cast<long>(e) + 1; // expected-warning {{variable 'e' is uninitialized when used within its own initialization}} 27int f = foo(f); // expected-warning {{variable 'f' is uninitialized when used within its own initialization}} 28 29// Thes don't warn as they don't require the value. 30int g = sizeof(g); 31void* ptr = &ptr; 32int h = bar(&h); 33int i = boo(i); 34int j = far(j); 35int k = __alignof__(k); 36 37int l = k ? l : l; // expected-warning 2{{variable 'l' is uninitialized when used within its own initialization}} 38int m = 1 + (k ? m : m); // expected-warning 2{{variable 'm' is uninitialized when used within its own initialization}} 39int n = -n; // expected-warning {{variable 'n' is uninitialized when used within its own initialization}} 40int o = std::move(o); // expected-warning {{variable 'o' is uninitialized when used within its own initialization}} 41const int p = std::move(p); // expected-warning {{variable 'p' is uninitialized when used within its own initialization}} 42int q = moved(std::move(q)); // expected-warning {{variable 'q' is uninitialized when used within its own initialization}} 43int r = std::move((p ? q : (18, r))); // expected-warning {{variable 'r' is uninitialized when used within its own initialization}} 44int s = r ?: s; // expected-warning {{variable 's' is uninitialized when used within its own initialization}} 45int t = t ?: s; // expected-warning {{variable 't' is uninitialized when used within its own initialization}} 46int u = (foo(u), s); // expected-warning {{variable 'u' is uninitialized when used within its own initialization}} 47int v = (u += v); // expected-warning {{variable 'v' is uninitialized when used within its own initialization}} 48int w = (w += 10); // expected-warning {{variable 'w' is uninitialized when used within its own initialization}} 49int x = x++; // expected-warning {{variable 'x' is uninitialized when used within its own initialization}} 50int y = ((s ? (y, v) : (77, y))++, sizeof(y)); // expected-warning {{variable 'y' is uninitialized when used within its own initialization}} 51int z = ++ref(z); // expected-warning {{variable 'z' is uninitialized when used within its own initialization}} 52int aa = (ref(aa) += 10); // expected-warning {{variable 'aa' is uninitialized when used within its own initialization}} 53int bb = bb ? x : y; // expected-warning {{variable 'bb' is uninitialized when used within its own initialization}} 54 55void test_stuff () { 56 int a = a; // no-warning: used to signal intended lack of initialization. 57 int b = b + 1; // expected-warning {{variable 'b' is uninitialized when used within its own initialization}} 58 int c = (c + c); // expected-warning {{variable 'c' is uninitialized when used within its own initialization}} 59 int d = ({ d + d ;}); // expected-warning {{variable 'd' is uninitialized when used within its own initialization}} 60 int e = static_cast<long>(e) + 1; // expected-warning {{variable 'e' is uninitialized when used within its own initialization}} 61 int f = foo(f); // expected-warning {{variable 'f' is uninitialized when used within its own initialization}} 62 63 // Thes don't warn as they don't require the value. 64 int g = sizeof(g); 65 void* ptr = &ptr; 66 int h = bar(&h); 67 int i = boo(i); 68 int j = far(j); 69 int k = __alignof__(k); 70 71 int l = k ? l : l; // expected-warning {{variable 'l' is uninitialized when used within its own initialization}} 72 int m = 1 + (k ? m : m); // expected-warning {{'m' is uninitialized when used within its own initialization}} 73 int n = -n; // expected-warning {{variable 'n' is uninitialized when used within its own initialization}} 74 int o = std::move(o); // expected-warning {{variable 'o' is uninitialized when used within its own initialization}} 75 const int p = std::move(p); // expected-warning {{variable 'p' is uninitialized when used within its own initialization}} 76 int q = moved(std::move(q)); // expected-warning {{variable 'q' is uninitialized when used within its own initialization}} 77 int r = std::move((p ? q : (18, r))); // expected-warning {{variable 'r' is uninitialized when used within its own initialization}} 78 int s = r ?: s; // expected-warning {{variable 's' is uninitialized when used within its own initialization}} 79 int t = t ?: s; // expected-warning {{variable 't' is uninitialized when used within its own initialization}} 80 int u = (foo(u), s); // expected-warning {{variable 'u' is uninitialized when used within its own initialization}} 81 int v = (u += v); // expected-warning {{variable 'v' is uninitialized when used within its own initialization}} 82 int w = (w += 10); // expected-warning {{variable 'w' is uninitialized when used within its own initialization}} 83 int x = x++; // expected-warning {{variable 'x' is uninitialized when used within its own initialization}} 84 int y = ((s ? (y, v) : (77, y))++, sizeof(y)); // expected-warning {{variable 'y' is uninitialized when used within its own initialization}} 85 int z = ++ref(z); // expected-warning {{variable 'z' is uninitialized when used within its own initialization}} 86 int aa = (ref(aa) += 10); // expected-warning {{variable 'aa' is uninitialized when used within its own initialization}} 87 int bb = bb ? x : y; // expected-warning {{variable 'bb' is uninitialized when used within its own initialization}} 88 89 for (;;) { 90 int a = a; // no-warning: used to signal intended lack of initialization. 91 int b = b + 1; // expected-warning {{variable 'b' is uninitialized when used within its own initialization}} 92 int c = (c + c); // expected-warning {{variable 'c' is uninitialized when used within its own initialization}} 93 int d = ({ d + d ;}); // expected-warning {{variable 'd' is uninitialized when used within its own initialization}} 94 int e = static_cast<long>(e) + 1; // expected-warning {{variable 'e' is uninitialized when used within its own initialization}} 95 int f = foo(f); // expected-warning {{variable 'f' is uninitialized when used within its own initialization}} 96 97 // Thes don't warn as they don't require the value. 98 int g = sizeof(g); 99 void* ptr = &ptr; 100 int h = bar(&h); 101 int i = boo(i); 102 int j = far(j); 103 int k = __alignof__(k); 104 105 int l = k ? l : l; // expected-warning {{variable 'l' is uninitialized when used within its own initialization}} 106 int m = 1 + (k ? m : m); // expected-warning {{'m' is uninitialized when used within its own initialization}} 107 int n = -n; // expected-warning {{variable 'n' is uninitialized when used within its own initialization}} 108 int o = std::move(o); // expected-warning {{variable 'o' is uninitialized when used within its own initialization}} 109 const int p = std::move(p); // expected-warning {{variable 'p' is uninitialized when used within its own initialization}} 110 int q = moved(std::move(q)); // expected-warning {{variable 'q' is uninitialized when used within its own initialization}} 111 int r = std::move((p ? q : (18, r))); // expected-warning {{variable 'r' is uninitialized when used within its own initialization}} 112 int s = r ?: s; // expected-warning {{variable 's' is uninitialized when used within its own initialization}} 113 int t = t ?: s; // expected-warning {{variable 't' is uninitialized when used within its own initialization}} 114 int u = (foo(u), s); // expected-warning {{variable 'u' is uninitialized when used within its own initialization}} 115 int v = (u += v); // expected-warning {{variable 'v' is uninitialized when used within its own initialization}} 116 int w = (w += 10); // expected-warning {{variable 'w' is uninitialized when used within its own initialization}} 117 int x = x++; // expected-warning {{variable 'x' is uninitialized when used within its own initialization}} 118 int y = ((s ? (y, v) : (77, y))++, sizeof(y)); // expected-warning {{variable 'y' is uninitialized when used within its own initialization}} 119 int z = ++ref(z); // expected-warning {{variable 'z' is uninitialized when used within its own initialization}} 120 int aa = (ref(aa) += 10); // expected-warning {{variable 'aa' is uninitialized when used within its own initialization}} 121 int bb = bb ? x : y; // expected-warning {{variable 'bb' is uninitialized when used within its own initialization}} 122 123 } 124} 125 126void test_comma() { 127 int a; // expected-note {{initialize the variable 'a' to silence this warning}} 128 int b = (a, a ?: 2); // expected-warning {{variable 'a' is uninitialized when used here}} 129 int c = (a, a, b, c); // expected-warning {{variable 'c' is uninitialized when used within its own initialization}} 130 int d; // expected-note {{initialize the variable 'd' to silence this warning}} 131 int e = (foo(d), e, b); // expected-warning {{variable 'd' is uninitialized when used here}} 132 int f; // expected-note {{initialize the variable 'f' to silence this warning}} 133 f = f + 1, 2; // expected-warning {{variable 'f' is uninitialized when used here}} 134 int h; 135 int g = (h, g, 2); // no-warning: h, g are evaluated but not used. 136} 137 138namespace member_ptr { 139struct A { 140 int x; 141 int y; 142 A(int x) : x{x} {} 143}; 144 145void test_member_ptr() { 146 int A::* px = &A::x; 147 A a{a.*px}; // expected-warning {{variable 'a' is uninitialized when used within its own initialization}} 148 A b = b; // expected-warning {{variable 'b' is uninitialized when used within its own initialization}} 149} 150} 151 152namespace const_ptr { 153void foo(int *a); 154void bar(const int *a); 155void foobar(const int **a); 156 157void test_const_ptr() { 158 int a; 159 int b; // expected-note {{initialize the variable 'b' to silence this warning}} 160 foo(&a); 161 bar(&b); 162 b = a + b; // expected-warning {{variable 'b' is uninitialized when used here}} 163 int *ptr; //expected-note {{initialize the variable 'ptr' to silence this warning}} 164 const int *ptr2; 165 foo(ptr); // expected-warning {{variable 'ptr' is uninitialized when used here}} 166 foobar(&ptr2); 167} 168} 169 170// Also test similar constructs in a field's initializer. 171struct S { 172 int x; 173 int y; 174 const int z = 5; 175 void *ptr; 176 177 S(bool (*)[1]) : x(x) {} // expected-warning {{field 'x' is uninitialized when used here}} 178 S(bool (*)[2]) : x(x + 1) {} // expected-warning {{field 'x' is uninitialized when used here}} 179 S(bool (*)[3]) : x(x + x) {} // expected-warning 2{{field 'x' is uninitialized when used here}} 180 S(bool (*)[4]) : x(static_cast<long>(x) + 1) {} // expected-warning {{field 'x' is uninitialized when used here}} 181 S(bool (*)[5]) : x(foo(x)) {} // expected-warning {{field 'x' is uninitialized when used here}} 182 183 // These don't actually require the value of x and so shouldn't warn. 184 S(char (*)[1]) : x(sizeof(x)) {} // rdar://8610363 185 S(char (*)[2]) : ptr(&ptr) {} 186 S(char (*)[3]) : x(bar(&x)) {} 187 S(char (*)[4]) : x(boo(x)) {} 188 S(char (*)[5]) : x(far(x)) {} 189 S(char (*)[6]) : x(__alignof__(x)) {} 190 191 S(int (*)[1]) : x(0), y(x ? y : y) {} // expected-warning 2{{field 'y' is uninitialized when used here}} 192 S(int (*)[2]) : x(0), y(1 + (x ? y : y)) {} // expected-warning 2{{field 'y' is uninitialized when used here}} 193 S(int (*)[3]) : x(-x) {} // expected-warning {{field 'x' is uninitialized when used here}} 194 S(int (*)[4]) : x(std::move(x)) {} // expected-warning {{field 'x' is uninitialized when used here}} 195 S(int (*)[5]) : z(std::move(z)) {} // expected-warning {{field 'z' is uninitialized when used here}} 196 S(int (*)[6]) : x(moved(std::move(x))) {} // expected-warning {{field 'x' is uninitialized when used here}} 197 S(int (*)[7]) : x(0), y(std::move((x ? x : (18, y)))) {} // expected-warning {{field 'y' is uninitialized when used here}} 198 S(int (*)[8]) : x(0), y(x ?: y) {} // expected-warning {{field 'y' is uninitialized when used here}} 199 S(int (*)[9]) : x(0), y(y ?: x) {} // expected-warning {{field 'y' is uninitialized when used here}} 200 S(int (*)[10]) : x(0), y((foo(y), x)) {} // expected-warning {{field 'y' is uninitialized when used here}} 201 S(int (*)[11]) : x(0), y(x += y) {} // expected-warning {{field 'y' is uninitialized when used here}} 202 S(int (*)[12]) : x(x += 10) {} // expected-warning {{field 'x' is uninitialized when used here}} 203 S(int (*)[13]) : x(x++) {} // expected-warning {{field 'x' is uninitialized when used here}} 204 S(int (*)[14]) : x(0), y(((x ? (y, x) : (77, y))++, sizeof(y))) {} // expected-warning {{field 'y' is uninitialized when used here}} 205 S(int (*)[15]) : x(++ref(x)) {} // expected-warning {{field 'x' is uninitialized when used here}} 206 S(int (*)[16]) : x((ref(x) += 10)) {} // expected-warning {{field 'x' is uninitialized when used here}} 207 S(int (*)[17]) : x(0), y(y ? x : x) {} // expected-warning {{field 'y' is uninitialized when used here}} 208}; 209 210// Test self-references with record types. 211class A { 212 // Non-POD class. 213 public: 214 enum count { ONE, TWO, THREE }; 215 int num; 216 static int count; 217 int get() const { return num; } 218 int get2() { return num; } 219 int set(int x) { num = x; return num; } 220 static int zero() { return 0; } 221 222 A() {} 223 A(A const &a) {} 224 A(int x) {} 225 A(int *x) {} 226 A(A *a) {} 227 A(A &&a) {} 228 ~A(); 229 bool operator!(); 230 bool operator!=(const A&); 231}; 232 233bool operator!=(int, const A&); 234 235A getA() { return A(); } 236A getA(int x) { return A(); } 237A getA(A* a) { return A(); } 238A getA(A a) { return A(); } 239A moveA(A&& a) { return A(); } 240A const_refA(const A& a) { return A(); } 241 242void setupA(bool x) { 243 A a1; 244 a1.set(a1.get()); 245 A a2(a1.get()); 246 A a3(a1); 247 A a4(&a4); 248 A a5(a5.zero()); 249 A a6(a6.ONE); 250 A a7 = getA(); 251 A a8 = getA(a8.TWO); 252 A a9 = getA(&a9); 253 A a10(a10.count); 254 255 A a11(a11); // expected-warning {{variable 'a11' is uninitialized when used within its own initialization}} 256 A a12(a12.get()); // expected-warning {{variable 'a12' is uninitialized when used within its own initialization}} 257 A a13(a13.num); // expected-warning {{variable 'a13' is uninitialized when used within its own initialization}} 258 A a14 = A(a14); // expected-warning {{variable 'a14' is uninitialized when used within its own initialization}} 259 A a15 = getA(a15.num); // expected-warning {{variable 'a15' is uninitialized when used within its own initialization}} 260 A a16(&a16.num); // expected-warning {{variable 'a16' is uninitialized when used within its own initialization}} 261 A a17(a17.get2()); // expected-warning {{variable 'a17' is uninitialized when used within its own initialization}} 262 A a18 = x ? a18 : a17; // expected-warning {{variable 'a18' is uninitialized when used within its own initialization}} 263 A a19 = getA(x ? a19 : a17); // expected-warning {{variable 'a19' is uninitialized when used within its own initialization}} 264 A a20{a20}; // expected-warning {{variable 'a20' is uninitialized when used within its own initialization}} 265 A a21 = {a21}; // expected-warning {{variable 'a21' is uninitialized when used within its own initialization}} 266 267 // FIXME: Make the local uninitialized warning consistent with the global 268 // uninitialized checking. 269 A *a22 = new A(a22->count); // expected-warning {{variable 'a22' is uninitialized when used within its own initialization}} 270 A *a23 = new A(a23->ONE); // expected-warning {{variable 'a23' is uninitialized when used within its own initialization}} 271 A *a24 = new A(a24->TWO); // expected-warning {{variable 'a24' is uninitialized when used within its own initialization}} 272 A *a25 = new A(a25->zero()); // expected-warning {{variable 'a25' is uninitialized when used within its own initialization}} 273 274 A *a26 = new A(a26->get()); // expected-warning {{variable 'a26' is uninitialized when used within its own initialization}} 275 A *a27 = new A(a27->get2()); // expected-warning {{variable 'a27' is uninitialized when used within its own initialization}} 276 A *a28 = new A(a28->num); // expected-warning {{variable 'a28' is uninitialized when used within its own initialization}} 277 278 const A a29(a29); // expected-warning {{variable 'a29' is uninitialized when used within its own initialization}} 279 const A a30 = a30; // expected-warning {{variable 'a30' is uninitialized when used within its own initialization}} 280 281 A a31 = std::move(a31); // expected-warning {{variable 'a31' is uninitialized when used within its own initialization}} 282 A a32 = moveA(std::move(a32)); // expected-warning {{variable 'a32' is uninitialized when used within its own initialization}} 283 A a33 = A(std::move(a33)); // expected-warning {{variable 'a33' is uninitialized when used within its own initialization}} 284 A a34(std::move(a34)); // expected-warning {{variable 'a34' is uninitialized when used within its own initialization}} 285 A a35 = std::move(x ? a34 : (37, a35)); // expected-warning {{variable 'a35' is uninitialized when used within its own initialization}} 286 287 A a36 = const_refA(a36); 288 A a37(const_refA(a37)); 289 290 A a38({a38}); // expected-warning {{variable 'a38' is uninitialized when used within its own initialization}} 291 A a39 = {a39}; // expected-warning {{variable 'a39' is uninitialized when used within its own initialization}} 292 A a40 = A({a40}); // expected-warning {{variable 'a40' is uninitialized when used within its own initialization}} 293 294 A a41 = !a41; // expected-warning {{variable 'a41' is uninitialized when used within its own initialization}} 295 A a42 = !(a42); // expected-warning {{variable 'a42' is uninitialized when used within its own initialization}} 296 A a43 = a43 != a42; // expected-warning {{variable 'a43' is uninitialized when used within its own initialization}} 297 A a44 = a43 != a44; // expected-warning {{variable 'a44' is uninitialized when used within its own initialization}} 298 A a45 = a45 != a45; // expected-warning 2{{variable 'a45' is uninitialized when used within its own initialization}} 299 A a46 = 0 != a46; // expected-warning {{variable 'a46' is uninitialized when used within its own initialization}} 300 301 A a47(a47.set(a47.num)); // expected-warning 2{{variable 'a47' is uninitialized when used within its own initialization}} 302 A a48(a47.set(a48.num)); // expected-warning {{variable 'a48' is uninitialized when used within its own initialization}} 303 A a49(a47.set(a48.num)); 304} 305 306bool cond; 307 308A a1; 309A a2(a1.get()); 310A a3(a1); 311A a4(&a4); 312A a5(a5.zero()); 313A a6(a6.ONE); 314A a7 = getA(); 315A a8 = getA(a8.TWO); 316A a9 = getA(&a9); 317A a10(a10.count); 318 319A a11(a11); // expected-warning {{variable 'a11' is uninitialized when used within its own initialization}} 320A a12(a12.get()); // expected-warning {{variable 'a12' is uninitialized when used within its own initialization}} 321A a13(a13.num); // expected-warning {{variable 'a13' is uninitialized when used within its own initialization}} 322A a14 = A(a14); // expected-warning {{variable 'a14' is uninitialized when used within its own initialization}} 323A a15 = getA(a15.num); // expected-warning {{variable 'a15' is uninitialized when used within its own initialization}} 324A a16(&a16.num); // expected-warning {{variable 'a16' is uninitialized when used within its own initialization}} 325A a17(a17.get2()); // expected-warning {{variable 'a17' is uninitialized when used within its own initialization}} 326A a18 = cond ? a18 : a17; // expected-warning {{variable 'a18' is uninitialized when used within its own initialization}} 327A a19 = getA(cond ? a19 : a17); // expected-warning {{variable 'a19' is uninitialized when used within its own initialization}} 328A a20{a20}; // expected-warning {{variable 'a20' is uninitialized when used within its own initialization}} 329A a21 = {a21}; // expected-warning {{variable 'a21' is uninitialized when used within its own initialization}} 330 331A *a22 = new A(a22->count); 332A *a23 = new A(a23->ONE); 333A *a24 = new A(a24->TWO); 334A *a25 = new A(a25->zero()); 335 336A *a26 = new A(a26->get()); // expected-warning {{variable 'a26' is uninitialized when used within its own initialization}} 337A *a27 = new A(a27->get2()); // expected-warning {{variable 'a27' is uninitialized when used within its own initialization}} 338A *a28 = new A(a28->num); // expected-warning {{variable 'a28' is uninitialized when used within its own initialization}} 339 340const A a29(a29); // expected-warning {{variable 'a29' is uninitialized when used within its own initialization}} 341const A a30 = a30; // expected-warning {{variable 'a30' is uninitialized when used within its own initialization}} 342 343A a31 = std::move(a31); // expected-warning {{variable 'a31' is uninitialized when used within its own initialization}} 344A a32 = moveA(std::move(a32)); // expected-warning {{variable 'a32' is uninitialized when used within its own initialization}} 345A a33 = A(std::move(a33)); // expected-warning {{variable 'a33' is uninitialized when used within its own initialization}} 346A a34(std::move(a34)); // expected-warning {{variable 'a34' is uninitialized when used within its own initialization}} 347A a35 = std::move(x ? a34 : (37, a35)); // expected-warning {{variable 'a35' is uninitialized when used within its own initialization}} 348 349A a36 = const_refA(a36); 350A a37(const_refA(a37)); 351 352A a38({a38}); // expected-warning {{variable 'a38' is uninitialized when used within its own initialization}} 353A a39 = {a39}; // expected-warning {{variable 'a39' is uninitialized when used within its own initialization}} 354A a40 = A({a40}); // expected-warning {{variable 'a40' is uninitialized when used within its own initialization}} 355 356A a41 = !a41; // expected-warning {{variable 'a41' is uninitialized when used within its own initialization}} 357A a42 = !(a42); // expected-warning {{variable 'a42' is uninitialized when used within its own initialization}} 358A a43 = a43 != a42; // expected-warning {{variable 'a43' is uninitialized when used within its own initialization}} 359A a44 = a43 != a44; // expected-warning {{variable 'a44' is uninitialized when used within its own initialization}} 360A a45 = a45 != a45; // expected-warning 2{{variable 'a45' is uninitialized when used within its own initialization}} 361 362A a46 = 0 != a46; // expected-warning {{variable 'a46' is uninitialized when used within its own initialization}} 363 364A a47(a47.set(a47.num)); // expected-warning 2{{variable 'a47' is uninitialized when used within its own initialization}} 365A a48(a47.set(a48.num)); // expected-warning {{variable 'a48' is uninitialized when used within its own initialization}} 366A a49(a47.set(a48.num)); 367 368class T { 369 A a, a2; 370 const A c_a; 371 A* ptr_a; 372 373 T() {} 374 T(bool (*)[1]) : a() {} 375 T(bool (*)[2]) : a2(a.get()) {} 376 T(bool (*)[3]) : a2(a) {} 377 T(bool (*)[4]) : a(&a) {} 378 T(bool (*)[5]) : a(a.zero()) {} 379 T(bool (*)[6]) : a(a.ONE) {} 380 T(bool (*)[7]) : a(getA()) {} 381 T(bool (*)[8]) : a2(getA(a.TWO)) {} 382 T(bool (*)[9]) : a(getA(&a)) {} 383 T(bool (*)[10]) : a(a.count) {} 384 385 T(bool (*)[11]) : a(a) {} // expected-warning {{field 'a' is uninitialized when used here}} 386 T(bool (*)[12]) : a(a.get()) {} // expected-warning {{field 'a' is uninitialized when used here}} 387 T(bool (*)[13]) : a(a.num) {} // expected-warning {{field 'a' is uninitialized when used here}} 388 T(bool (*)[14]) : a(A(a)) {} // expected-warning {{field 'a' is uninitialized when used here}} 389 T(bool (*)[15]) : a(getA(a.num)) {} // expected-warning {{field 'a' is uninitialized when used here}} 390 T(bool (*)[16]) : a(&a.num) {} // expected-warning {{field 'a' is uninitialized when used here}} 391 T(bool (*)[17]) : a(a.get2()) {} // expected-warning {{field 'a' is uninitialized when used here}} 392 T(bool (*)[18]) : a2(cond ? a2 : a) {} // expected-warning {{field 'a2' is uninitialized when used here}} 393 T(bool (*)[19]) : a2(cond ? a2 : a) {} // expected-warning {{field 'a2' is uninitialized when used here}} 394 T(bool (*)[20]) : a{a} {} // expected-warning {{field 'a' is uninitialized when used here}} 395 T(bool (*)[21]) : a({a}) {} // expected-warning {{field 'a' is uninitialized when used here}} 396 397 T(bool (*)[22]) : ptr_a(new A(ptr_a->count)) {} 398 T(bool (*)[23]) : ptr_a(new A(ptr_a->ONE)) {} 399 T(bool (*)[24]) : ptr_a(new A(ptr_a->TWO)) {} 400 T(bool (*)[25]) : ptr_a(new A(ptr_a->zero())) {} 401 402 T(bool (*)[26]) : ptr_a(new A(ptr_a->get())) {} // expected-warning {{field 'ptr_a' is uninitialized when used here}} 403 T(bool (*)[27]) : ptr_a(new A(ptr_a->get2())) {} // expected-warning {{field 'ptr_a' is uninitialized when used here}} 404 T(bool (*)[28]) : ptr_a(new A(ptr_a->num)) {} // expected-warning {{field 'ptr_a' is uninitialized when used here}} 405 406 T(bool (*)[29]) : c_a(c_a) {} // expected-warning {{field 'c_a' is uninitialized when used here}} 407 T(bool (*)[30]) : c_a(A(c_a)) {} // expected-warning {{field 'c_a' is uninitialized when used here}} 408 409 T(bool (*)[31]) : a(std::move(a)) {} // expected-warning {{field 'a' is uninitialized when used here}} 410 T(bool (*)[32]) : a(moveA(std::move(a))) {} // expected-warning {{field 'a' is uninitialized when used here}} 411 T(bool (*)[33]) : a(A(std::move(a))) {} // expected-warning {{field 'a' is uninitialized when used here}} 412 T(bool (*)[34]) : a(A(std::move(a))) {} // expected-warning {{field 'a' is uninitialized when used here}} 413 T(bool (*)[35]) : a2(std::move(x ? a : (37, a2))) {} // expected-warning {{field 'a2' is uninitialized when used here}} 414 415 T(bool (*)[36]) : a(const_refA(a)) {} 416 T(bool (*)[37]) : a(A(const_refA(a))) {} 417 418 T(bool (*)[38]) : a({a}) {} // expected-warning {{field 'a' is uninitialized when used here}} 419 T(bool (*)[39]) : a{a} {} // expected-warning {{field 'a' is uninitialized when used here}} 420 T(bool (*)[40]) : a({a}) {} // expected-warning {{field 'a' is uninitialized when used here}} 421 422 T(bool (*)[41]) : a(!a) {} // expected-warning {{field 'a' is uninitialized when used here}} 423 T(bool (*)[42]) : a(!(a)) {} // expected-warning {{field 'a' is uninitialized when used here}} 424 T(bool (*)[43]) : a(), a2(a2 != a) {} // expected-warning {{field 'a2' is uninitialized when used here}} 425 T(bool (*)[44]) : a(), a2(a != a2) {} // expected-warning {{field 'a2' is uninitialized when used here}} 426 T(bool (*)[45]) : a(a != a) {} // expected-warning 2{{field 'a' is uninitialized when used here}} 427 T(bool (*)[46]) : a(0 != a) {} // expected-warning {{field 'a' is uninitialized when used here}} 428 429 T(bool (*)[47]) : a2(a2.set(a2.num)) {} // expected-warning 2{{field 'a2' is uninitialized when used here}} 430 T(bool (*)[48]) : a2(a.set(a2.num)) {} // expected-warning {{field 'a2' is uninitialized when used here}} 431 T(bool (*)[49]) : a2(a.set(a.num)) {} 432 433}; 434 435struct B { 436 // POD struct. 437 int x; 438 int *y; 439}; 440 441B getB() { return B(); }; 442B getB(int x) { return B(); }; 443B getB(int *x) { return B(); }; 444B getB(B *b) { return B(); }; 445B moveB(B &&b) { return B(); }; 446 447B* getPtrB() { return 0; }; 448B* getPtrB(int x) { return 0; }; 449B* getPtrB(int *x) { return 0; }; 450B* getPtrB(B **b) { return 0; }; 451 452void setupB(bool x) { 453 B b1; 454 B b2(b1); 455 B b3 = { 5, &b3.x }; 456 B b4 = getB(); 457 B b5 = getB(&b5); 458 B b6 = getB(&b6.x); 459 460 // Silence unused warning 461 (void) b2; 462 (void) b4; 463 464 B b7(b7); // expected-warning {{variable 'b7' is uninitialized when used within its own initialization}} 465 B b8 = getB(b8.x); // expected-warning {{variable 'b8' is uninitialized when used within its own initialization}} 466 B b9 = getB(b9.y); // expected-warning {{variable 'b9' is uninitialized when used within its own initialization}} 467 B b10 = getB(-b10.x); // expected-warning {{variable 'b10' is uninitialized when used within its own initialization}} 468 469 B* b11 = 0; 470 B* b12(b11); 471 B* b13 = getPtrB(); 472 B* b14 = getPtrB(&b14); 473 474 (void) b12; 475 (void) b13; 476 477 B* b15 = getPtrB(b15->x); // expected-warning {{variable 'b15' is uninitialized when used within its own initialization}} 478 B* b16 = getPtrB(b16->y); // expected-warning {{variable 'b16' is uninitialized when used within its own initialization}} 479 480 B b17 = { b17.x = 5, b17.y = 0 }; 481 B b18 = { b18.x + 1, b18.y }; // expected-warning 2{{variable 'b18' is uninitialized when used within its own initialization}} 482 483 const B b19 = b19; // expected-warning {{variable 'b19' is uninitialized when used within its own initialization}} 484 const B b20(b20); // expected-warning {{variable 'b20' is uninitialized when used within its own initialization}} 485 486 B b21 = std::move(b21); // expected-warning {{variable 'b21' is uninitialized when used within its own initialization}} 487 B b22 = moveB(std::move(b22)); // expected-warning {{variable 'b22' is uninitialized when used within its own initialization}} 488 B b23 = B(std::move(b23)); // expected-warning {{variable 'b23' is uninitialized when used within its own initialization}} 489 B b24 = std::move(x ? b23 : (18, b24)); // expected-warning {{variable 'b24' is uninitialized when used within its own initialization}} 490} 491 492B b1; 493B b2(b1); 494B b3 = { 5, &b3.x }; 495B b4 = getB(); 496B b5 = getB(&b5); 497B b6 = getB(&b6.x); 498 499B b7(b7); // expected-warning {{variable 'b7' is uninitialized when used within its own initialization}} 500B b8 = getB(b8.x); // expected-warning {{variable 'b8' is uninitialized when used within its own initialization}} 501B b9 = getB(b9.y); // expected-warning {{variable 'b9' is uninitialized when used within its own initialization}} 502B b10 = getB(-b10.x); // expected-warning {{variable 'b10' is uninitialized when used within its own initialization}} 503 504B* b11 = 0; 505B* b12(b11); 506B* b13 = getPtrB(); 507B* b14 = getPtrB(&b14); 508 509B* b15 = getPtrB(b15->x); // expected-warning {{variable 'b15' is uninitialized when used within its own initialization}} 510B* b16 = getPtrB(b16->y); // expected-warning {{variable 'b16' is uninitialized when used within its own initialization}} 511 512B b17 = { b17.x = 5, b17.y = 0 }; 513B b18 = { b18.x + 1, b18.y }; // expected-warning 2{{variable 'b18' is uninitialized when used within its own initialization}} 514 515const B b19 = b19; // expected-warning {{variable 'b19' is uninitialized when used within its own initialization}} 516const B b20(b20); // expected-warning {{variable 'b20' is uninitialized when used within its own initialization}} 517 518B b21 = std::move(b21); // expected-warning {{variable 'b21' is uninitialized when used within its own initialization}} 519B b22 = moveB(std::move(b22)); // expected-warning {{variable 'b22' is uninitialized when used within its own initialization}} 520B b23 = B(std::move(b23)); // expected-warning {{variable 'b23' is uninitialized when used within its own initialization}} 521B b24 = std::move(x ? b23 : (18, b24)); // expected-warning {{variable 'b24' is uninitialized when used within its own initialization}} 522 523class U { 524 B b1, b2; 525 B *ptr1, *ptr2; 526 const B constb = {}; 527 528 U() {} 529 U(bool (*)[1]) : b1() {} 530 U(bool (*)[2]) : b2(b1) {} 531 U(bool (*)[3]) : b1{ 5, &b1.x } {} 532 U(bool (*)[4]) : b1(getB()) {} 533 U(bool (*)[5]) : b1(getB(&b1)) {} 534 U(bool (*)[6]) : b1(getB(&b1.x)) {} 535 536 U(bool (*)[7]) : b1(b1) {} // expected-warning {{field 'b1' is uninitialized when used here}} 537 U(bool (*)[8]) : b1(getB(b1.x)) {} // expected-warning {{field 'b1' is uninitialized when used here}} 538 U(bool (*)[9]) : b1(getB(b1.y)) {} // expected-warning {{field 'b1' is uninitialized when used here}} 539 U(bool (*)[10]) : b1(getB(-b1.x)) {} // expected-warning {{field 'b1' is uninitialized when used here}} 540 541 U(bool (*)[11]) : ptr1(0) {} 542 U(bool (*)[12]) : ptr1(0), ptr2(ptr1) {} 543 U(bool (*)[13]) : ptr1(getPtrB()) {} 544 U(bool (*)[14]) : ptr1(getPtrB(&ptr1)) {} 545 546 U(bool (*)[15]) : ptr1(getPtrB(ptr1->x)) {} // expected-warning {{field 'ptr1' is uninitialized when used here}} 547 U(bool (*)[16]) : ptr2(getPtrB(ptr2->y)) {} // expected-warning {{field 'ptr2' is uninitialized when used here}} 548 549 U(bool (*)[17]) : b1 { b1.x = 5, b1.y = 0 } {} 550 U(bool (*)[18]) : b1 { b1.x + 1, b1.y } {} // expected-warning 2{{field 'b1' is uninitialized when used here}} 551 552 U(bool (*)[19]) : constb(constb) {} // expected-warning {{field 'constb' is uninitialized when used here}} 553 U(bool (*)[20]) : constb(B(constb)) {} // expected-warning {{field 'constb' is uninitialized when used here}} 554 555 U(bool (*)[21]) : b1(std::move(b1)) {} // expected-warning {{field 'b1' is uninitialized when used here}} 556 U(bool (*)[22]) : b1(moveB(std::move(b1))) {} // expected-warning {{field 'b1' is uninitialized when used here}} 557 U(bool (*)[23]) : b1(B(std::move(b1))) {} // expected-warning {{field 'b1' is uninitialized when used here}} 558 U(bool (*)[24]) : b2(std::move(x ? b1 : (18, b2))) {} // expected-warning {{field 'b2' is uninitialized when used here}} 559}; 560 561struct C { char a[100], *e; } car = { .e = car.a }; 562 563// <rdar://problem/10398199> 564namespace rdar10398199 { 565 class FooBase { protected: ~FooBase() {} }; 566 class Foo : public FooBase { 567 public: 568 operator int&() const; 569 }; 570 void stuff(); 571 template <typename T> class FooImpl : public Foo { 572 T val; 573 public: 574 FooImpl(const T &x) : val(x) {} 575 ~FooImpl() { stuff(); } 576 }; 577 578 template <typename T> FooImpl<T> makeFoo(const T& x) { 579 return FooImpl<T>(x); 580 } 581 582 void test() { 583 const Foo &x = makeFoo(42); 584 const int&y = makeFoo(42u); 585 (void)x; 586 (void)y; 587 }; 588} 589 590// PR 12325 - this was a false uninitialized value warning due to 591// a broken CFG. 592int pr12325(int params) { 593 int x = ({ 594 while (false) 595 ; 596 int _v = params; 597 if (false) 598 ; 599 _v; // no-warning 600 }); 601 return x; 602} 603 604// Test lambda expressions with -Wuninitialized 605int test_lambda() { 606 auto f1 = [] (int x, int y) { int z; return x + y + z; }; // expected-warning{{variable 'z' is uninitialized when used here}} expected-note {{initialize the variable 'z' to silence this warning}} 607 return f1(1, 2); 608} 609 610namespace { 611 struct A { 612 enum { A1 }; 613 static int A2() {return 5;} 614 int A3; 615 int A4() { return 5;} 616 }; 617 618 struct B { 619 A a; 620 }; 621 622 struct C { 623 C() {} 624 C(int x) {} 625 static A a; 626 B b; 627 }; 628 A C::a = A(); 629 630 // Accessing non-static members will give a warning. 631 struct D { 632 C c; 633 D(char (*)[1]) : c(c.b.a.A1) {} 634 D(char (*)[2]) : c(c.b.a.A2()) {} 635 D(char (*)[3]) : c(c.b.a.A3) {} // expected-warning {{field 'c' is uninitialized when used here}} 636 D(char (*)[4]) : c(c.b.a.A4()) {} // expected-warning {{field 'c' is uninitialized when used here}} 637 638 // c::a is static, so it is already initialized 639 D(char (*)[5]) : c(c.a.A1) {} 640 D(char (*)[6]) : c(c.a.A2()) {} 641 D(char (*)[7]) : c(c.a.A3) {} 642 D(char (*)[8]) : c(c.a.A4()) {} 643 }; 644 645 struct E { 646 int b = 1; 647 int c = 1; 648 int a; // This field needs to be last to prevent the cross field 649 // uninitialized warning. 650 E(char (*)[1]) : a(a ? b : c) {} // expected-warning {{field 'a' is uninitialized when used here}} 651 E(char (*)[2]) : a(b ? a : a) {} // expected-warning 2{{field 'a' is uninitialized when used here}} 652 E(char (*)[3]) : a(b ? (a) : c) {} // expected-warning {{field 'a' is uninitialized when used here}} 653 E(char (*)[4]) : a(b ? c : (a+c)) {} // expected-warning {{field 'a' is uninitialized when used here}} 654 E(char (*)[5]) : a(b ? c : b) {} 655 656 E(char (*)[6]) : a(a ?: a) {} // expected-warning 2{{field 'a' is uninitialized when used here}} 657 E(char (*)[7]) : a(b ?: a) {} // expected-warning {{field 'a' is uninitialized when used here}} 658 E(char (*)[8]) : a(a ?: c) {} // expected-warning {{field 'a' is uninitialized when used here}} 659 E(char (*)[9]) : a(b ?: c) {} 660 661 E(char (*)[10]) : a((a, a, b)) {} 662 E(char (*)[11]) : a((c + a, a + 1, b)) {} // expected-warning 2{{field 'a' is uninitialized when used here}} 663 E(char (*)[12]) : a((b + c, c, a)) {} // expected-warning {{field 'a' is uninitialized when used here}} 664 E(char (*)[13]) : a((a, a, a, a)) {} // expected-warning {{field 'a' is uninitialized when used here}} 665 E(char (*)[14]) : a((b, c, c)) {} 666 E(char (*)[15]) : a(b ?: a) {} // expected-warning {{field 'a' is uninitialized when used here}} 667 E(char (*)[16]) : a(a ?: b) {} // expected-warning {{field 'a' is uninitialized when used here}} 668 }; 669 670 struct F { 671 int a; 672 F* f; 673 F(int) {} 674 F() {} 675 }; 676 677 int F::*ptr = &F::a; 678 F* F::*f_ptr = &F::f; 679 struct G { 680 F f1, f2; 681 F *f3, *f4; 682 G(char (*)[1]) : f1(f1) {} // expected-warning {{field 'f1' is uninitialized when used here}} 683 G(char (*)[2]) : f2(f1) {} 684 G(char (*)[3]) : f2(F()) {} 685 686 G(char (*)[4]) : f1(f1.*ptr) {} // expected-warning {{field 'f1' is uninitialized when used here}} 687 G(char (*)[5]) : f2(f1.*ptr) {} 688 689 G(char (*)[6]) : f3(f3) {} // expected-warning {{field 'f3' is uninitialized when used here}} 690 G(char (*)[7]) : f3(f3->*f_ptr) {} // expected-warning {{field 'f3' is uninitialized when used here}} 691 G(char (*)[8]) : f3(new F(f3->*ptr)) {} // expected-warning {{field 'f3' is uninitialized when used here}} 692 }; 693 694 struct H { 695 H() : a(a) {} // expected-warning {{field 'a' is uninitialized when used here}} 696 const A a; 697 }; 698} 699 700namespace statics { 701 static int a = a; // no-warning: used to signal intended lack of initialization. 702 static int b = b + 1; // expected-warning {{variable 'b' is uninitialized when used within its own initialization}} 703 static int c = (c + c); // expected-warning 2{{variable 'c' is uninitialized when used within its own initialization}} 704 static int e = static_cast<long>(e) + 1; // expected-warning {{variable 'e' is uninitialized when used within its own initialization}} 705 static int f = foo(f); // expected-warning {{variable 'f' is uninitialized when used within its own initialization}} 706 707 // Thes don't warn as they don't require the value. 708 static int g = sizeof(g); 709 int gg = g; // Silence unneeded warning 710 static void* ptr = &ptr; 711 static int h = bar(&h); 712 static int i = boo(i); 713 static int j = far(j); 714 static int k = __alignof__(k); 715 716 static int l = k ? l : l; // expected-warning 2{{variable 'l' is uninitialized when used within its own initialization}} 717 static int m = 1 + (k ? m : m); // expected-warning 2{{variable 'm' is uninitialized when used within its own initialization}} 718 static int n = -n; // expected-warning {{variable 'n' is uninitialized when used within its own initialization}} 719 static int o = std::move(o); // expected-warning {{variable 'o' is uninitialized when used within its own initialization}} 720 static const int p = std::move(p); // expected-warning {{variable 'p' is uninitialized when used within its own initialization}} 721 static int q = moved(std::move(q)); // expected-warning {{variable 'q' is uninitialized when used within its own initialization}} 722 static int r = std::move((p ? q : (18, r))); // expected-warning {{variable 'r' is uninitialized when used within its own initialization}} 723 static int s = r ?: s; // expected-warning {{variable 's' is uninitialized when used within its own initialization}} 724 static int t = t ?: s; // expected-warning {{variable 't' is uninitialized when used within its own initialization}} 725 static int u = (foo(u), s); // expected-warning {{variable 'u' is uninitialized when used within its own initialization}} 726 static int v = (u += v); // expected-warning {{variable 'v' is uninitialized when used within its own initialization}} 727 static int w = (w += 10); // expected-warning {{variable 'w' is uninitialized when used within its own initialization}} 728 static int x = x++; // expected-warning {{variable 'x' is uninitialized when used within its own initialization}} 729 static int y = ((s ? (y, v) : (77, y))++, sizeof(y)); // expected-warning {{variable 'y' is uninitialized when used within its own initialization}} 730 static int z = ++ref(z); // expected-warning {{variable 'z' is uninitialized when used within its own initialization}} 731 static int aa = (ref(aa) += 10); // expected-warning {{variable 'aa' is uninitialized when used within its own initialization}} 732 static int bb = bb ? x : y; // expected-warning {{variable 'bb' is uninitialized when used within its own initialization}} 733 734 735 void test() { 736 static int a = a; // no-warning: used to signal intended lack of initialization. 737 static int b = b + 1; // expected-warning {{static variable 'b' is suspiciously used within its own initialization}} 738 static int c = (c + c); // expected-warning 2{{static variable 'c' is suspiciously used within its own initialization}} 739 static int d = ({ d + d ;}); // expected-warning 2{{static variable 'd' is suspiciously used within its own initialization}} 740 static int e = static_cast<long>(e) + 1; // expected-warning {{static variable 'e' is suspiciously used within its own initialization}} 741 static int f = foo(f); // expected-warning {{static variable 'f' is suspiciously used within its own initialization}} 742 743 // Thes don't warn as they don't require the value. 744 static int g = sizeof(g); 745 static void* ptr = &ptr; 746 static int h = bar(&h); 747 static int i = boo(i); 748 static int j = far(j); 749 static int k = __alignof__(k); 750 751 static int l = k ? l : l; // expected-warning 2{{static variable 'l' is suspiciously used within its own initialization}} 752 static int m = 1 + (k ? m : m); // expected-warning 2{{static variable 'm' is suspiciously used within its own initialization}} 753 static int n = -n; // expected-warning {{static variable 'n' is suspiciously used within its own initialization}} 754 static int o = std::move(o); // expected-warning {{static variable 'o' is suspiciously used within its own initialization}} 755 static const int p = std::move(p); // expected-warning {{static variable 'p' is suspiciously used within its own initialization}} 756 static int q = moved(std::move(q)); // expected-warning {{static variable 'q' is suspiciously used within its own initialization}} 757 static int r = std::move((p ? q : (18, r))); // expected-warning {{static variable 'r' is suspiciously used within its own initialization}} 758 static int s = r ?: s; // expected-warning {{static variable 's' is suspiciously used within its own initialization}} 759 static int t = t ?: s; // expected-warning {{static variable 't' is suspiciously used within its own initialization}} 760 static int u = (foo(u), s); // expected-warning {{static variable 'u' is suspiciously used within its own initialization}} 761 static int v = (u += v); // expected-warning {{static variable 'v' is suspiciously used within its own initialization}} 762 static int w = (w += 10); // expected-warning {{static variable 'w' is suspiciously used within its own initialization}} 763 static int x = x++; // expected-warning {{static variable 'x' is suspiciously used within its own initialization}} 764 static int y = ((s ? (y, v) : (77, y))++, sizeof(y)); // expected-warning {{static variable 'y' is suspiciously used within its own initialization}} 765 static int z = ++ref(z); // expected-warning {{static variable 'z' is suspiciously used within its own initialization}} 766 static int aa = (ref(aa) += 10); // expected-warning {{static variable 'aa' is suspiciously used within its own initialization}} 767 static int bb = bb ? x : y; // expected-warning {{static variable 'bb' is suspiciously used within its own initialization}} 768 769 for (;;) { 770 static int a = a; // no-warning: used to signal intended lack of initialization. 771 static int b = b + 1; // expected-warning {{static variable 'b' is suspiciously used within its own initialization}} 772 static int c = (c + c); // expected-warning 2{{static variable 'c' is suspiciously used within its own initialization}} 773 static int d = ({ d + d ;}); // expected-warning 2{{static variable 'd' is suspiciously used within its own initialization}} 774 static int e = static_cast<long>(e) + 1; // expected-warning {{static variable 'e' is suspiciously used within its own initialization}} 775 static int f = foo(f); // expected-warning {{static variable 'f' is suspiciously used within its own initialization}} 776 777 // Thes don't warn as they don't require the value. 778 static int g = sizeof(g); 779 static void* ptr = &ptr; 780 static int h = bar(&h); 781 static int i = boo(i); 782 static int j = far(j); 783 static int k = __alignof__(k); 784 785 static int l = k ? l : l; // expected-warning 2{{static variable 'l' is suspiciously used within its own initialization}} 786 static int m = 1 + (k ? m : m); // expected-warning 2{{static variable 'm' is suspiciously used within its own initialization}} 787 static int n = -n; // expected-warning {{static variable 'n' is suspiciously used within its own initialization}} 788 static int o = std::move(o); // expected-warning {{static variable 'o' is suspiciously used within its own initialization}} 789 static const int p = std::move(p); // expected-warning {{static variable 'p' is suspiciously used within its own initialization}} 790 static int q = moved(std::move(q)); // expected-warning {{static variable 'q' is suspiciously used within its own initialization}} 791 static int r = std::move((p ? q : (18, r))); // expected-warning {{static variable 'r' is suspiciously used within its own initialization}} 792 static int s = r ?: s; // expected-warning {{static variable 's' is suspiciously used within its own initialization}} 793 static int t = t ?: s; // expected-warning {{static variable 't' is suspiciously used within its own initialization}} 794 static int u = (foo(u), s); // expected-warning {{static variable 'u' is suspiciously used within its own initialization}} 795 static int v = (u += v); // expected-warning {{static variable 'v' is suspiciously used within its own initialization}} 796 static int w = (w += 10); // expected-warning {{static variable 'w' is suspiciously used within its own initialization}} 797 static int x = x++; // expected-warning {{static variable 'x' is suspiciously used within its own initialization}} 798 static int y = ((s ? (y, v) : (77, y))++, sizeof(y)); // expected-warning {{static variable 'y' is suspiciously used within its own initialization}} 799 static int z = ++ref(z); // expected-warning {{static variable 'z' is suspiciously used within its own initialization}} 800 static int aa = (ref(aa) += 10); // expected-warning {{static variable 'aa' is suspiciously used within its own initialization}} 801 static int bb = bb ? x : y; // expected-warning {{static variable 'bb' is suspiciously used within its own initialization}} 802 } 803 } 804} 805 806namespace in_class_initializers { 807 struct S { 808 S() : a(a + 1) {} // expected-warning{{field 'a' is uninitialized when used here}} 809 int a = 42; // Note: because a is in a member initializer list, this initialization is ignored. 810 }; 811 812 struct T { 813 T() : b(a + 1) {} // No-warning. 814 int a = 42; 815 int b; 816 }; 817 818 struct U { 819 U() : a(b + 1), b(a + 1) {} // expected-warning{{field 'b' is uninitialized when used here}} 820 int a = 42; // Note: because a and b are in the member initializer list, these initializers are ignored. 821 int b = 1; 822 }; 823} 824 825namespace references { 826 int &a = a; // expected-warning{{reference 'a' is not yet bound to a value when used within its own initialization}} 827 int &b(b); // expected-warning{{reference 'b' is not yet bound to a value when used within its own initialization}} 828 int &c = a ? b : c; // expected-warning{{reference 'c' is not yet bound to a value when used within its own initialization}} 829 int &d{d}; // expected-warning{{reference 'd' is not yet bound to a value when used within its own initialization}} 830 int &e = d ?: e; // expected-warning{{reference 'e' is not yet bound to a value when used within its own initialization}} 831 int &f = f ?: d; // expected-warning{{reference 'f' is not yet bound to a value when used within its own initialization}} 832 833 int &return_ref1(int); 834 int &return_ref2(int&); 835 836 int &g = return_ref1(g); // expected-warning{{reference 'g' is not yet bound to a value when used within its own initialization}} 837 int &h = return_ref2(h); // expected-warning{{reference 'h' is not yet bound to a value when used within its own initialization}} 838 839 struct S { 840 S() : a(a) {} // expected-warning{{reference 'a' is not yet bound to a value when used here}} 841 int &a; 842 }; 843 844 void test() { 845 int &a = a; // expected-warning{{reference 'a' is not yet bound to a value when used within its own initialization}} 846 int &b(b); // expected-warning{{reference 'b' is not yet bound to a value when used within its own initialization}} 847 int &c = a ? b : c; // expected-warning{{reference 'c' is not yet bound to a value when used within its own initialization}} 848 int &d{d}; // expected-warning{{reference 'd' is not yet bound to a value when used within its own initialization}} 849 } 850 851 struct T { 852 T() // expected-note{{during field initialization in this constructor}} 853 : a(b), b(a) {} // expected-warning{{reference 'b' is not yet bound to a value when used here}} 854 int &a, &b; 855 int &c = c; // expected-warning{{reference 'c' is not yet bound to a value when used here}} 856 }; 857 858 int x; 859 struct U { 860 U() : b(a) {} // No-warning. 861 int &a = x; 862 int &b; 863 }; 864} 865 866namespace operators { 867 struct A { 868 A(bool); 869 bool operator==(A); 870 }; 871 872 A makeA(); 873 874 A a1 = a1 = makeA(); // expected-warning{{variable 'a1' is uninitialized when used within its own initialization}} 875 A a2 = a2 == a1; // expected-warning{{variable 'a2' is uninitialized when used within its own initialization}} 876 A a3 = a2 == a3; // expected-warning{{variable 'a3' is uninitialized when used within its own initialization}} 877 878 int x = x = 5; 879} 880 881namespace lambdas { 882 struct A { 883 template<typename T> A(T) {} 884 int x; 885 }; 886 A a0([] { return a0.x; }); // ok 887 void f() { 888 A a1([=] { return a1.x; }); // expected-warning{{variable 'a1' is uninitialized when used within its own initialization}} 889 A a2([&] { return a2.x; }); // ok 890 } 891} 892 893namespace record_fields { 894 bool x; 895 struct A { 896 A() {} 897 A get(); 898 static A num(); 899 static A copy(A); 900 static A something(A&); 901 }; 902 903 A ref(A&); 904 A const_ref(const A&); 905 A pointer(A*); 906 A normal(A); 907 A rref(A&&); 908 909 struct B { 910 A a; 911 B(char (*)[1]) : a(a) {} // expected-warning {{uninitialized}} 912 B(char (*)[2]) : a(a.get()) {} // expected-warning {{uninitialized}} 913 B(char (*)[3]) : a(a.num()) {} 914 B(char (*)[4]) : a(a.copy(a)) {} // expected-warning {{uninitialized}} 915 B(char (*)[5]) : a(a.something(a)) {} 916 B(char (*)[6]) : a(ref(a)) {} 917 B(char (*)[7]) : a(const_ref(a)) {} 918 B(char (*)[8]) : a(pointer(&a)) {} 919 B(char (*)[9]) : a(normal(a)) {} // expected-warning {{uninitialized}} 920 B(char (*)[10]) : a(std::move(a)) {} // expected-warning {{uninitialized}} 921 B(char (*)[11]) : a(A(std::move(a))) {} // expected-warning {{uninitialized}} 922 B(char (*)[12]) : a(rref(std::move(a))) {} // expected-warning {{uninitialized}} 923 B(char (*)[13]) : a(std::move(x ? a : (25, a))) {} // expected-warning 2{{uninitialized}} 924 }; 925 struct C { 926 C() {} // expected-note9{{in this constructor}} 927 A a1 = a1; // expected-warning {{uninitialized}} 928 A a2 = a2.get(); // expected-warning {{uninitialized}} 929 A a3 = a3.num(); 930 A a4 = a4.copy(a4); // expected-warning {{uninitialized}} 931 A a5 = a5.something(a5); 932 A a6 = ref(a6); 933 A a7 = const_ref(a7); 934 A a8 = pointer(&a8); 935 A a9 = normal(a9); // expected-warning {{uninitialized}} 936 const A a10 = a10; // expected-warning {{uninitialized}} 937 A a11 = std::move(a11); // expected-warning {{uninitialized}} 938 A a12 = A(std::move(a12)); // expected-warning {{uninitialized}} 939 A a13 = rref(std::move(a13)); // expected-warning {{uninitialized}} 940 A a14 = std::move(x ? a13 : (22, a14)); // expected-warning {{uninitialized}} 941 }; 942 struct D { // expected-note9{{in the implicit default constructor}} 943 A a1 = a1; // expected-warning {{uninitialized}} 944 A a2 = a2.get(); // expected-warning {{uninitialized}} 945 A a3 = a3.num(); 946 A a4 = a4.copy(a4); // expected-warning {{uninitialized}} 947 A a5 = a5.something(a5); 948 A a6 = ref(a6); 949 A a7 = const_ref(a7); 950 A a8 = pointer(&a8); 951 A a9 = normal(a9); // expected-warning {{uninitialized}} 952 const A a10 = a10; // expected-warning {{uninitialized}} 953 A a11 = std::move(a11); // expected-warning {{uninitialized}} 954 A a12 = A(std::move(a12)); // expected-warning {{uninitialized}} 955 A a13 = rref(std::move(a13)); // expected-warning {{uninitialized}} 956 A a14 = std::move(x ? a13 : (22, a14)); // expected-warning {{uninitialized}} 957 }; 958 D d; 959 struct E { 960 A a1 = a1; 961 A a2 = a2.get(); 962 A a3 = a3.num(); 963 A a4 = a4.copy(a4); 964 A a5 = a5.something(a5); 965 A a6 = ref(a6); 966 A a7 = const_ref(a7); 967 A a8 = pointer(&a8); 968 A a9 = normal(a9); 969 const A a10 = a10; 970 A a11 = std::move(a11); 971 A a12 = A(std::move(a12)); 972 A a13 = rref(std::move(a13)); 973 A a14 = std::move(x ? a13 : (22, a14)); 974 }; 975} 976 977namespace cross_field_warnings { 978 struct A { 979 int a, b; 980 A() {} 981 A(char (*)[1]) : b(a) {} // expected-warning{{field 'a' is uninitialized when used here}} 982 A(char (*)[2]) : a(b) {} // expected-warning{{field 'b' is uninitialized when used here}} 983 }; 984 985 struct B { 986 int a = b; // expected-warning{{field 'b' is uninitialized when used here}} 987 int b; 988 B() {} // expected-note{{during field initialization in this constructor}} 989 }; 990 991 struct C { 992 int a; 993 int b = a; // expected-warning{{field 'a' is uninitialized when used here}} 994 C(char (*)[1]) : a(5) {} 995 C(char (*)[2]) {} // expected-note{{during field initialization in this constructor}} 996 }; 997 998 struct D { 999 int a; 1000 int &b; 1001 int &c = a; 1002 int d = b; 1003 D() : b(a) {} 1004 }; 1005 1006 struct E { 1007 int a; 1008 int get(); 1009 static int num(); 1010 E() {} 1011 E(int) {} 1012 }; 1013 1014 struct F { 1015 int a; 1016 E e; 1017 int b; 1018 F(char (*)[1]) : a(e.get()) {} // expected-warning{{field 'e' is uninitialized when used here}} 1019 F(char (*)[2]) : a(e.num()) {} 1020 F(char (*)[3]) : e(a) {} // expected-warning{{field 'a' is uninitialized when used here}} 1021 F(char (*)[4]) : a(4), e(a) {} 1022 F(char (*)[5]) : e(b) {} // expected-warning{{field 'b' is uninitialized when used here}} 1023 F(char (*)[6]) : e(b), b(4) {} // expected-warning{{field 'b' is uninitialized when used here}} 1024 }; 1025 1026 struct G { 1027 G(const A&) {}; 1028 }; 1029 1030 struct H { 1031 A a1; 1032 G g; 1033 A a2; 1034 H() : g(a1) {} 1035 H(int) : g(a2) {} 1036 }; 1037 1038 struct I { 1039 I(int*) {} 1040 }; 1041 1042 struct J : public I { 1043 int *a; 1044 int *b; 1045 int c; 1046 J() : I((a = new int(5))), b(a), c(*a) {} 1047 }; 1048 1049 struct K { 1050 int a = (b = 5); 1051 int b = b + 5; 1052 }; 1053 1054 struct L { 1055 int a = (b = 5); 1056 int b = b + 5; // expected-warning{{field 'b' is uninitialized when used here}} 1057 L() : a(5) {} // expected-note{{during field initialization in this constructor}} 1058 }; 1059 1060 struct M { }; 1061 1062 struct N : public M { 1063 int a; 1064 int b; 1065 N() : b(a) { } // expected-warning{{field 'a' is uninitialized when used here}} 1066 }; 1067 1068 struct O { 1069 int x = 42; 1070 int get() { return x; } 1071 }; 1072 1073 struct P { 1074 O o; 1075 int x = o.get(); 1076 P() : x(o.get()) { } 1077 }; 1078 1079 struct Q { 1080 int a; 1081 int b; 1082 int &c; 1083 Q() : 1084 a(c = 5), // expected-warning{{reference 'c' is not yet bound to a value when used here}} 1085 b(c), // expected-warning{{reference 'c' is not yet bound to a value when used here}} 1086 c(a) {} 1087 }; 1088 1089 struct R { 1090 int a; 1091 int b; 1092 int c; 1093 int d = a + b + c; 1094 R() : a(c = 5), b(c), c(a) {} 1095 }; 1096 1097 // FIXME: Use the CFG-based analysis to give a sometimes uninitialized 1098 // warning on y. 1099 struct T { 1100 int x; 1101 int y; 1102 T(bool b) 1103 : x(b ? (y = 5) : (1 + y)), // expected-warning{{field 'y' is uninitialized when used here}} 1104 y(y + 1) {} 1105 T(int b) 1106 : x(!b ? (1 + y) : (y = 5)), // expected-warning{{field 'y' is uninitialized when used here}} 1107 y(y + 1) {} 1108 }; 1109 1110} 1111 1112namespace base_class { 1113 struct A { 1114 A (int) {} 1115 }; 1116 1117 struct B : public A { 1118 int x; 1119 B() : A(x) {} // expected-warning{{field 'x' is uninitialized when used here}} 1120 }; 1121 1122 struct C : public A { 1123 int x; 1124 int y; 1125 C() : A(y = 4), x(y) {} 1126 }; 1127} 1128 1129namespace delegating_constructor { 1130 struct A { 1131 A(int); 1132 A(int&, int); 1133 1134 A(char (*)[1]) : A(x) {} 1135 // expected-warning@-1 {{field 'x' is uninitialized when used here}} 1136 A(char (*)[2]) : A(x, x) {} 1137 // expected-warning@-1 {{field 'x' is uninitialized when used here}} 1138 1139 A(char (*)[3]) : A(x, 0) {} 1140 1141 int x; 1142 }; 1143} 1144 1145namespace init_list { 1146 int num = 5; 1147 struct A { int i1, i2; }; 1148 struct B { A a1, a2; }; 1149 1150 A a1{1,2}; 1151 A a2{a2.i1 + 2}; // expected-warning{{uninitialized}} 1152 A a3 = {a3.i1 + 2}; // expected-warning{{uninitialized}} 1153 A a4 = A{a4.i2 + 2}; // expected-warning{{uninitialized}} 1154 1155 B b1 = { {}, {} }; 1156 B b2 = { {}, b2.a1 }; 1157 B b3 = { b3.a1 }; // expected-warning{{uninitialized}} 1158 B b4 = { {}, b4.a2} ; // expected-warning{{uninitialized}} 1159 B b5 = { b5.a2 }; // expected-warning{{uninitialized}} 1160 1161 B b6 = { {b6.a1.i1} }; // expected-warning{{uninitialized}} 1162 B b7 = { {0, b7.a1.i1} }; 1163 B b8 = { {}, {b8.a1.i1} }; 1164 B b9 = { {}, {0, b9.a1.i1} }; 1165 1166 B b10 = { {b10.a1.i2} }; // expected-warning{{uninitialized}} 1167 B b11 = { {0, b11.a1.i2} }; // expected-warning{{uninitialized}} 1168 B b12 = { {}, {b12.a1.i2} }; 1169 B b13 = { {}, {0, b13.a1.i2} }; 1170 1171 B b14 = { {b14.a2.i1} }; // expected-warning{{uninitialized}} 1172 B b15 = { {0, b15.a2.i1} }; // expected-warning{{uninitialized}} 1173 B b16 = { {}, {b16.a2.i1} }; // expected-warning{{uninitialized}} 1174 B b17 = { {}, {0, b17.a2.i1} }; 1175 1176 B b18 = { {b18.a2.i2} }; // expected-warning{{uninitialized}} 1177 B b19 = { {0, b19.a2.i2} }; // expected-warning{{uninitialized}} 1178 B b20 = { {}, {b20.a2.i2} }; // expected-warning{{uninitialized}} 1179 B b21 = { {}, {0, b21.a2.i2} }; // expected-warning{{uninitialized}} 1180 1181 B b22 = { {b18.a2.i2 + 5} }; 1182 1183 struct C {int a; int& b; int c; }; 1184 C c1 = { 0, num, 0 }; 1185 C c2 = { 1, num, c2.b }; 1186 C c3 = { c3.b, num }; // expected-warning{{uninitialized}} 1187 C c4 = { 0, c4.b, 0 }; // expected-warning{{uninitialized}} 1188 C c5 = { 0, c5.c, 0 }; 1189 C c6 = { c6.b, num, 0 }; // expected-warning{{uninitialized}} 1190 C c7 = { 0, c7.a, 0 }; 1191 1192 struct D {int &a; int &b; }; 1193 D d1 = { num, num }; 1194 D d2 = { num, d2.a }; 1195 D d3 = { d3.b, num }; // expected-warning{{uninitialized}} 1196 1197 // Same as above in member initializer form. 1198 struct Awrapper { 1199 A a1{1,2}; 1200 A a2{a2.i1 + 2}; // expected-warning{{uninitialized}} 1201 A a3 = {a3.i1 + 2}; // expected-warning{{uninitialized}} 1202 A a4 = A{a4.i2 + 2}; // expected-warning{{uninitialized}} 1203 Awrapper() {} // expected-note 3{{in this constructor}} 1204 Awrapper(int) : 1205 a1{1,2}, 1206 a2{a2.i1 + 2}, // expected-warning{{uninitialized}} 1207 a3{a3.i1 + 2}, // expected-warning{{uninitialized}} 1208 a4{a4.i2 + 2} // expected-warning{{uninitialized}} 1209 {} 1210 }; 1211 1212 struct Bwrapper { 1213 B b1 = { {}, {} }; 1214 B b2 = { {}, b2.a1 }; 1215 B b3 = { b3.a1 }; // expected-warning{{uninitialized}} 1216 B b4 = { {}, b4.a2} ; // expected-warning{{uninitialized}} 1217 B b5 = { b5.a2 }; // expected-warning{{uninitialized}} 1218 1219 B b6 = { {b6.a1.i1} }; // expected-warning{{uninitialized}} 1220 B b7 = { {0, b7.a1.i1} }; 1221 B b8 = { {}, {b8.a1.i1} }; 1222 B b9 = { {}, {0, b9.a1.i1} }; 1223 1224 B b10 = { {b10.a1.i2} }; // expected-warning{{uninitialized}} 1225 B b11 = { {0, b11.a1.i2} }; // expected-warning{{uninitialized}} 1226 B b12 = { {}, {b12.a1.i2} }; 1227 B b13 = { {}, {0, b13.a1.i2} }; 1228 1229 B b14 = { {b14.a2.i1} }; // expected-warning{{uninitialized}} 1230 B b15 = { {0, b15.a2.i1} }; // expected-warning{{uninitialized}} 1231 B b16 = { {}, {b16.a2.i1} }; // expected-warning{{uninitialized}} 1232 B b17 = { {}, {0, b17.a2.i1} }; 1233 1234 B b18 = { {b18.a2.i2} }; // expected-warning{{uninitialized}} 1235 B b19 = { {0, b19.a2.i2} }; // expected-warning{{uninitialized}} 1236 B b20 = { {}, {b20.a2.i2} }; // expected-warning{{uninitialized}} 1237 B b21 = { {}, {0, b21.a2.i2} }; // expected-warning{{uninitialized}} 1238 1239 B b22 = { {b18.a2.i2 + 5} }; 1240 Bwrapper() {} // expected-note 13{{in this constructor}} 1241 Bwrapper(int) : 1242 b1{ {}, {} }, 1243 b2{ {}, b2.a1 }, 1244 b3{ b3.a1 }, // expected-warning{{uninitialized}} 1245 b4{ {}, b4.a2}, // expected-warning{{uninitialized}} 1246 b5{ b5.a2 }, // expected-warning{{uninitialized}} 1247 1248 b6{ {b6.a1.i1} }, // expected-warning{{uninitialized}} 1249 b7{ {0, b7.a1.i1} }, 1250 b8{ {}, {b8.a1.i1} }, 1251 b9{ {}, {0, b9.a1.i1} }, 1252 1253 b10{ {b10.a1.i2} }, // expected-warning{{uninitialized}} 1254 b11{ {0, b11.a1.i2} }, // expected-warning{{uninitialized}} 1255 b12{ {}, {b12.a1.i2} }, 1256 b13{ {}, {0, b13.a1.i2} }, 1257 1258 b14{ {b14.a2.i1} }, // expected-warning{{uninitialized}} 1259 b15{ {0, b15.a2.i1} }, // expected-warning{{uninitialized}} 1260 b16{ {}, {b16.a2.i1} }, // expected-warning{{uninitialized}} 1261 b17{ {}, {0, b17.a2.i1} }, 1262 1263 b18{ {b18.a2.i2} }, // expected-warning{{uninitialized}} 1264 b19{ {0, b19.a2.i2} }, // expected-warning{{uninitialized}} 1265 b20{ {}, {b20.a2.i2} }, // expected-warning{{uninitialized}} 1266 b21{ {}, {0, b21.a2.i2} }, // expected-warning{{uninitialized}} 1267 1268 b22{ {b18.a2.i2 + 5} } 1269 {} 1270 }; 1271 1272 struct Cwrapper { 1273 C c1 = { 0, num, 0 }; 1274 C c2 = { 1, num, c2.b }; 1275 C c3 = { c3.b, num }; // expected-warning{{uninitialized}} 1276 C c4 = { 0, c4.b, 0 }; // expected-warning{{uninitialized}} 1277 C c5 = { 0, c5.c, 0 }; 1278 C c6 = { c6.b, num, 0 }; // expected-warning{{uninitialized}} 1279 C c7 = { 0, c7.a, 0 }; 1280 1281 Cwrapper() {} // expected-note 3{{in this constructor}} 1282 Cwrapper(int) : 1283 c1{ 0, num, 0 }, 1284 c2{ 1, num, c2.b }, 1285 c3{ c3.b, num }, // expected-warning{{uninitialized}} 1286 c4{ 0, c4.b, 0 }, // expected-warning{{uninitialized}} 1287 c5{ 0, c5.c, 0 }, 1288 c6{ c6.b, num, 0 }, // expected-warning{{uninitialized}} 1289 c7{ 0, c7.a, 0 } 1290 {} 1291 }; 1292 1293 struct Dwrapper { 1294 D d1 = { num, num }; 1295 D d2 = { num, d2.a }; 1296 D d3 = { d3.b, num }; // expected-warning{{uninitialized}} 1297 Dwrapper() {} // expected-note{{in this constructor}} 1298 Dwrapper(int) : 1299 d1{ num, num }, 1300 d2{ num, d2.a }, 1301 d3{ d3.b, num } // expected-warning{{uninitialized}} 1302 {} 1303 }; 1304} 1305 1306namespace template_class { 1307class Foo { 1308 public: 1309 int *Create() { return nullptr; } 1310}; 1311 1312template <typename T> 1313class A { 1314public: 1315 // Don't warn on foo here. 1316 A() : ptr(foo->Create()) {} 1317 1318private: 1319 Foo *foo = new Foo; 1320 int *ptr; 1321}; 1322 1323template <typename T> 1324class B { 1325public: 1326 // foo is uninitialized here, but class B is never instantiated. 1327 B() : ptr(foo->Create()) {} 1328 1329private: 1330 Foo *foo; 1331 int *ptr; 1332}; 1333 1334template <typename T> 1335class C { 1336public: 1337 C() : ptr(foo->Create()) {} 1338 // expected-warning@-1 {{field 'foo' is uninitialized when used here}} 1339private: 1340 Foo *foo; 1341 int *ptr; 1342}; 1343 1344C<int> c; 1345// expected-note@-1 {{in instantiation of member function 'template_class::C<int>::C' requested here}} 1346 1347} 1348 1349namespace base_class_access { 1350struct A { 1351 A(); 1352 A(int); 1353 1354 int i; 1355 int foo(); 1356 1357 static int bar(); 1358}; 1359 1360struct B : public A { 1361 B(int (*)[1]) : A() {} 1362 B(int (*)[2]) : A(bar()) {} 1363 1364 B(int (*)[3]) : A(i) {} 1365 // expected-warning@-1 {{base class 'base_class_access::A' is uninitialized when used here to access 'base_class_access::A::i'}} 1366 1367 B(int (*)[4]) : A(foo()) {} 1368 // expected-warning@-1 {{base_class_access::A' is uninitialized when used here to access 'base_class_access::A::foo'}} 1369}; 1370 1371struct C { 1372 C(int) {} 1373}; 1374 1375struct D : public C, public A { 1376 D(int (*)[1]) : C(0) {} 1377 D(int (*)[2]) : C(bar()) {} 1378 1379 D(int (*)[3]) : C(i) {} 1380 // expected-warning@-1 {{base class 'base_class_access::A' is uninitialized when used here to access 'base_class_access::A::i'}} 1381 1382 D(int (*)[4]) : C(foo()) {} 1383 // expected-warning@-1 {{base_class_access::A' is uninitialized when used here to access 'base_class_access::A::foo'}} 1384}; 1385 1386} 1387 1388namespace value { 1389template <class T> T move(T t); 1390template <class T> T notmove(T t); 1391} 1392namespace lvalueref { 1393template <class T> T move(T& t); 1394template <class T> T notmove(T& t); 1395} 1396namespace rvalueref { 1397template <class T> T move(T&& t); 1398template <class T> T notmove(T&& t); 1399} 1400 1401namespace move_test { 1402int a1 = std::move(a1); // expected-warning {{uninitialized}} 1403int a2 = value::move(a2); // expected-warning {{uninitialized}} 1404int a3 = value::notmove(a3); // expected-warning {{uninitialized}} 1405int a4 = lvalueref::move(a4); 1406int a5 = lvalueref::notmove(a5); 1407int a6 = rvalueref::move(a6); 1408int a7 = rvalueref::notmove(a7); 1409 1410void test() { 1411 int a1 = std::move(a1); // expected-warning {{uninitialized}} 1412 int a2 = value::move(a2); // expected-warning {{uninitialized}} 1413 int a3 = value::notmove(a3); // expected-warning {{uninitialized}} 1414 int a4 = lvalueref::move(a4); 1415 int a5 = lvalueref::notmove(a5); 1416 int a6 = rvalueref::move(a6); 1417 int a7 = rvalueref::notmove(a7); 1418} 1419 1420class A { 1421 int a; 1422 A(int (*) [1]) : a(std::move(a)) {} // expected-warning {{uninitialized}} 1423 A(int (*) [2]) : a(value::move(a)) {} // expected-warning {{uninitialized}} 1424 A(int (*) [3]) : a(value::notmove(a)) {} // expected-warning {{uninitialized}} 1425 A(int (*) [4]) : a(lvalueref::move(a)) {} 1426 A(int (*) [5]) : a(lvalueref::notmove(a)) {} 1427 A(int (*) [6]) : a(rvalueref::move(a)) {} 1428 A(int (*) [7]) : a(rvalueref::notmove(a)) {} 1429}; 1430} 1431