| // No PCH: |
| // RUN: %clang_cc1 -pedantic -std=c++1z -include %s -verify %s |
| // |
| // With PCH: |
| // RUN: %clang_cc1 -pedantic -std=c++1z -emit-pch %s -o %t |
| // RUN: %clang_cc1 -pedantic -std=c++1z -include-pch %t -verify %s |
| |
| #ifndef HEADER |
| #define HEADER |
| |
| template<typename T> auto decomp(const T &t) { |
| auto &[a, b] = t; |
| return a + b; |
| } |
| |
| struct Q { int a, b; }; |
| constexpr int foo(Q &&q) { |
| auto &[a, b] = q; |
| return a * 10 + b; |
| } |
| |
| #else |
| |
| int arr[2]; |
| int k = decomp(arr); |
| |
| static_assert(foo({1, 2}) == 12); |
| |
| // expected-error@12 {{cannot decompose non-class, non-array type 'const int'}} |
| int z = decomp(10); // expected-note {{instantiation of}} |
| |
| #endif |
