diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae34.C')
-rw-r--r-- | gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae34.C | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae34.C b/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae34.C new file mode 100644 index 0000000..615a2bc --- /dev/null +++ b/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae34.C @@ -0,0 +1,27 @@ +// PR c++/52422 +// { dg-do compile { target c++11 } } + +template<class T> +struct add_rval_ref +{ + typedef T&& type; +}; + +template<> +struct add_rval_ref<void> +{ + typedef void type; +}; + +template<class T> +typename add_rval_ref<T>::type create(); + +template<class T, class U, + class = decltype( (create<T>().*create<U>())() ) +> +auto f(int) -> char(&)[1]; + +template<class, class> +auto f(...) -> char(&)[2]; + +static_assert(sizeof(f<void, void>(0)) != 1, ""); |