Move <optional> into include/experimental, and into the std::experimental namespace, since it's not part of C++14, but of an upcoming TS
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@194867 91177308-0d34-0410-b5e6-96231b3b80d8
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@@ -12,24 +12,22 @@
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// class bad_optional_access;
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// bad_optional_access& operator=(const bad_optional_access&);
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#include <optional>
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#include <experimental/optional>
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#include <string>
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#include <cstring>
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#include <type_traits>
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#include <cassert>
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#if _LIBCPP_STD_VER > 11
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#endif // _LIBCPP_STD_VER > 11
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int main()
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{
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#if _LIBCPP_STD_VER > 11
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static_assert(std::is_nothrow_copy_assignable<std::bad_optional_access>::value, "");
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using std::experimental::bad_optional_access;
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static_assert(std::is_nothrow_copy_assignable<bad_optional_access>::value, "");
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const std::string s1("one message");
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const std::string s2("another message");
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std::bad_optional_access e1(s1);
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std::bad_optional_access e2(s2);
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bad_optional_access e1(s1);
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bad_optional_access e2(s2);
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assert(std::strcmp(e1.what(), e2.what()) != 0);
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e1 = e2;
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assert(std::strcmp(e1.what(), e2.what()) == 0);
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