forked from OSchip/llvm-project
33 lines
651 B
C++
33 lines
651 B
C++
|
// 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
|