| // PR c++/57874 | |
| // { dg-do compile { target c++11 } } | |
| namespace NX | |
| { | |
| struct X {}; | |
| void foo(X) {} | |
| } | |
| namespace NY | |
| { | |
| struct Y {}; | |
| } | |
| template<class T> | |
| auto ADLfoo(T&&) -> decltype((foo(T{}), short())); | |
| char ADLfoo(...); | |
| static_assert(sizeof(ADLfoo(NY::Y{})) == 1, ""); | |
| static_assert(sizeof(ADLfoo(NX::X{})) == 2, ""); |