| 1 | // Test this without pch. |
| 2 | // RUN: %clang_cc1 -std=c++11 -include %s -fsyntax-only -verify %s |
| 3 | |
| 4 | // Test with pch. |
| 5 | // RUN: %clang_cc1 -std=c++11 -x c++-header -emit-pch -o %t %s |
| 6 | // RUN: %clang_cc1 -std=c++11 -include-pch %t -fsyntax-only -verify %s |
| 7 | |
| 8 | // expected-no-diagnostics |
| 9 | |
| 10 | // PR25271: Ensure that default template arguments prior to a parameter pack |
| 11 | // successfully round-trip. |
| 12 | #ifndef HEADER |
| 13 | #define HEADER |
| 14 | template<unsigned T=123, unsigned... U> |
| 15 | class dummy; |
| 16 | |
| 17 | template<unsigned T, unsigned... U> |
| 18 | class dummy { |
| 19 | int field[T]; |
| 20 | }; |
| 21 | #else |
| 22 | void f() { |
| 23 | dummy<> x; |
| 24 | (void)x; |
| 25 | } |
| 26 | #endif |
| 27 | |