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Move <optional> into include/experimental, and into the std::experimental namespace, since it's not part of C++14, but of an upcoming TS

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@194867 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Marshall Clow
2013-11-15 22:42:10 +00:00
parent ec5714f27a
commit 0cdbe60481
59 changed files with 523 additions and 409 deletions
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18
test/utilities/optional/optional.nullopt/nullopt_t.pass.cpp
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@@ -12,14 +12,18 @@
// struct nullopt_t{see below};
// constexpr nullopt_t nullopt(unspecified);
#include <optional>
#include <experimental/optional>
#include <type_traits>
#if _LIBCPP_STD_VER > 11
using std::experimental::optional;
using std::experimental::nullopt_t;
using std::experimental::nullopt;
constexpr
int
test(const std::nullopt_t&)
test(const nullopt_t&)
{
return 3;
}
@@ -29,11 +33,11 @@ test(const std::nullopt_t&)
int main()
{
#if _LIBCPP_STD_VER > 11
static_assert((std::is_class<std::nullopt_t>::value), "");
static_assert((std::is_empty<std::nullopt_t>::value), "");
static_assert((std::is_literal_type<std::nullopt_t>::value), "");
static_assert((!std::is_default_constructible<std::nullopt_t>::value), "");
static_assert((std::is_class<nullopt_t>::value), "");
static_assert((std::is_empty<nullopt_t>::value), "");
static_assert((std::is_literal_type<nullopt_t>::value), "");
static_assert((!std::is_default_constructible<nullopt_t>::value), "");
static_assert(test(std::nullopt) == 3, "");
static_assert(test(nullopt) == 3, "");
#endif
}