diff options
Diffstat (limited to 'libcxx/test/std/utilities/memory/pointer.traits/pointer.traits.functions')
-rw-r--r-- | libcxx/test/std/utilities/memory/pointer.traits/pointer.traits.functions/pointer_to.pass.cpp | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/libcxx/test/std/utilities/memory/pointer.traits/pointer.traits.functions/pointer_to.pass.cpp b/libcxx/test/std/utilities/memory/pointer.traits/pointer.traits.functions/pointer_to.pass.cpp new file mode 100644 index 00000000000..a8ad936c936 --- /dev/null +++ b/libcxx/test/std/utilities/memory/pointer.traits/pointer.traits.functions/pointer_to.pass.cpp @@ -0,0 +1,48 @@ +//===----------------------------------------------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is dual licensed under the MIT and the University of Illinois Open +// Source Licenses. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +// <memory> + +// template <class Ptr> +// struct pointer_traits +// { +// static pointer pointer_to(<details>); +// ... +// }; + +#include <memory> +#include <cassert> + +template <class T> +struct A +{ +private: + struct nat {}; +public: + typedef T element_type; + element_type* t_; + + A(element_type* t) : t_(t) {} + + static A pointer_to(typename std::conditional<std::is_void<element_type>::value, + nat, element_type>::type& et) + {return A(&et);} +}; + +int main() +{ + { + int i = 0; + A<int> a = std::pointer_traits<A<int> >::pointer_to(i); + assert(a.t_ == &i); + } + { + (std::pointer_traits<A<void> >::element_type)0; + } +} |