17 lines · cpp
1// RUN: not %clang_cc1 -std=c++17 -fsyntax-only -ferror-limit 1 %s 2>&1 | FileCheck %s2 3#error Error 14#error Error 25// CHECK: fatal error: too many errors emitted, stopping now6 7namespace rdar39051732 {8 9 template<class T> struct A {10 template <class U> A(T&, ...);11 };12 // Deduction guide triggers constructor instantiation.13 template<class T> A(const T&, const T&) -> A<T&>;14 15}16 17