| // RUN: %clang_cc1 -std=c++17 -verify %s | |
| // RUN: %clang_cc1 -std=c++20 -verify %s | |
| namespace GH61356 { | |
| template <typename T, bool b> | |
| class boo {void foo();}; | |
| template <typename T> | |
| class boo<T, true>; | |
| template<typename T> | |
| void boo<T, true>::foo(){} // expected-error{{out-of-line definition of 'foo' from class 'boo<T, true>' without definition}} | |
| } |