| // RUN: %clang_cc1 -std=c++26 -fsyntax-only %s -verify=nontemplate |
| // RUN: %clang_cc1 -std=c++2c -verify=cxx26,nontemplate -fsyntax-only -Wpre-c++26-compat %s |
| // RUN: %clang_cc1 -std=c++23 -verify=cxx23,nontemplate -fsyntax-only -Wc++26-extensions %s |
| |
| void decompose_array() { |
| constexpr int arr[4] = {1, 2, 3, 6}; |
| // cxx26-warning@+3 {{structured binding packs are incompatible with C++ standards before C++2c}} |
| // cxx23-warning@+2 {{structured binding packs are a C++2c extension}} |
| // nontemplate-error@+1 {{pack declaration outside of template}} |
| auto [x, ...rest, y] = arr; |
| |
| // cxx26-warning@+4 {{structured binding packs are incompatible with C++ standards before C++2c}} |
| // cxx23-error@+3 {{decomposition declaration cannot be declared 'constexpr'}} |
| // cxx23-warning@+2 {{structured binding packs are a C++2c extension}} |
| // nontemplate-error@+1 {{pack declaration outside of template}} |
| constexpr auto [x_c, ...rest_c, y_c] = arr; |
| } |
