diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae37.C')
-rw-r--r-- | gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae37.C | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae37.C b/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae37.C new file mode 100644 index 0000000..e89106a --- /dev/null +++ b/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae37.C @@ -0,0 +1,36 @@ +// PR c++/51213 +// { dg-do compile { target c++11 } } + +class C { + typedef int type; +}; + +template<int> +struct I; + +template<> +struct I<2> { }; + +template<class T, class = typename T::type> +auto f(int) -> char; + +template<class> +auto f(...) -> char (&)[2]; + +static_assert(sizeof(f<C>(0)) == 2, "Ouch"); + +typedef int testf[sizeof(f<C>(0)) == 2 ? 1 : -1]; + +I<sizeof(f<C>(0))> vf; + +template<class T> +auto g(int) -> decltype(typename T::type(), char()); + +template<class> +auto g(...) -> char (&)[2]; + +static_assert(sizeof(g<C>(0)) == 2, "Ouch"); + +typedef int testg[sizeof(g<C>(0)) == 2 ? 1 : -1]; + +I<sizeof(g<C>(0))> vg; |