diff options
Diffstat (limited to 'test/std/experimental/optional/optional.relops/not_equal.pass.cpp')
-rw-r--r-- | test/std/experimental/optional/optional.relops/not_equal.pass.cpp | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/test/std/experimental/optional/optional.relops/not_equal.pass.cpp b/test/std/experimental/optional/optional.relops/not_equal.pass.cpp new file mode 100644 index 000000000000..f386c7e361ec --- /dev/null +++ b/test/std/experimental/optional/optional.relops/not_equal.pass.cpp @@ -0,0 +1,79 @@ +//===----------------------------------------------------------------------===// +// +// 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. +// +//===----------------------------------------------------------------------===// + +// <optional> + +// template <class T> constexpr bool operator!=(const optional<T>& x, const optional<T>& y); + +#include <experimental/optional> +#include <type_traits> +#include <cassert> + +#if _LIBCPP_STD_VER > 11 + +using std::experimental::optional; + +struct X +{ + int i_; + + constexpr X(int i) : i_(i) {} +}; + +constexpr bool operator == ( const X &lhs, const X &rhs ) + { return lhs.i_ == rhs.i_ ; } + +#endif + +int main() +{ +#if _LIBCPP_STD_VER > 11 + { + typedef X T; + typedef optional<T> O; + + constexpr O o1; // disengaged + constexpr O o2; // disengaged + constexpr O o3{1}; // engaged + constexpr O o4{2}; // engaged + constexpr O o5{1}; // engaged + + static_assert ( !(o1 != o1), "" ); + static_assert ( !(o1 != o2), "" ); + static_assert ( (o1 != o3), "" ); + static_assert ( (o1 != o4), "" ); + static_assert ( (o1 != o5), "" ); + + static_assert ( !(o2 != o1), "" ); + static_assert ( !(o2 != o2), "" ); + static_assert ( (o2 != o3), "" ); + static_assert ( (o2 != o4), "" ); + static_assert ( (o2 != o5), "" ); + + static_assert ( (o3 != o1), "" ); + static_assert ( (o3 != o2), "" ); + static_assert ( !(o3 != o3), "" ); + static_assert ( (o3 != o4), "" ); + static_assert ( !(o3 != o5), "" ); + + static_assert ( (o4 != o1), "" ); + static_assert ( (o4 != o2), "" ); + static_assert ( (o4 != o3), "" ); + static_assert ( !(o4 != o4), "" ); + static_assert ( (o4 != o5), "" ); + + static_assert ( (o5 != o1), "" ); + static_assert ( (o5 != o2), "" ); + static_assert ( !(o5 != o3), "" ); + static_assert ( (o5 != o4), "" ); + static_assert ( !(o5 != o5), "" ); + + } +#endif +} |