1 // RUN: %clang_cc1 -std=c++1z -verify %s -Wpedantic 2 3 struct X { 4 X(int); 5 X(const X&) = delete; 6 }; 7 8 int array() { 9 static int arr[3] = {}; 10 auto [a, b, c] = arr; 11 static_assert(&a != &arr[0]); 12 13 using I3 = int[3]; 14 auto [a2, b2, c2] = I3{1, 2, 3}; 15 16 using X3 = X[3]; 17 auto [a3, b3, c3] = X3{1, 2, 3}; 18 19 auto &[d, e] = arr; // expected-error {{type 'int [3]' decomposes into 3 elements, but only 2 names were provided}} 20 auto &[f, g, h, i] = arr; // expected-error {{type 'int [3]' decomposes into 3 elements, but 4 names were provided}} 21 22 auto &[r0, r1, r2] = arr; 23 const auto &[cr0, cr1, cr2] = arr; 24 25 static_assert(&arr[0] == &r0); 26 static_assert(&arr[0] == &cr0); 27 28 using T = int; 29 using T = decltype(r0); 30 using U = const int; 31 using U = decltype(cr0); 32 33 return r1 + cr2; 34 } 35