31cbe0f240
C++98 and C++03 are effectively aliases as far as Clang is concerned. As such, allowing both std=c++98 and std=c++03 as Lit parameters is just slightly confusing, but provides no value. It's similar to allowing both std=c++17 and std=c++1z, which we don't do. This was discovered because we had an internal bot that ran the test suite under both c++98 AND c++03 -- one of which is redundant. Differential Revision: https://reviews.llvm.org/D80926
45 lines
1.8 KiB
C++
45 lines
1.8 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++03, c++11, c++14
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// <variant>
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// template <class ...Types> class variant;
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// template <class T>
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// variant& operator=(T&&) noexcept(see below);
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#include <variant>
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#include <string>
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#include <memory>
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#include "variant_test_helpers.h"
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int main(int, char**)
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{
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static_assert(!std::is_assignable<std::variant<int, int>, int>::value, "");
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static_assert(!std::is_assignable<std::variant<long, long long>, int>::value, "");
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static_assert(std::is_assignable<std::variant<char>, int>::value == VariantAllowsNarrowingConversions, "");
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static_assert(std::is_assignable<std::variant<std::string, float>, int>::value == VariantAllowsNarrowingConversions, "");
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static_assert(std::is_assignable<std::variant<std::string, double>, int>::value == VariantAllowsNarrowingConversions, "");
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static_assert(!std::is_assignable<std::variant<std::string, bool>, int>::value, "");
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static_assert(!std::is_assignable<std::variant<int, bool>, decltype("meow")>::value, "");
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static_assert(!std::is_assignable<std::variant<int, const bool>, decltype("meow")>::value, "");
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static_assert(!std::is_assignable<std::variant<int, const volatile bool>, decltype("meow")>::value, "");
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static_assert(!std::is_assignable<std::variant<bool>, std::true_type>::value, "");
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static_assert(!std::is_assignable<std::variant<bool>, std::unique_ptr<char> >::value, "");
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static_assert(!std::is_assignable<std::variant<bool>, decltype(nullptr)>::value, "");
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return 0;
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}
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