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4513f0f022
Re-apply the change which was reverted in r363764 as-is after breakages being resolved. Thanks Eric Fiselier for working hard on this. See also: https://bugs.llvm.org/show_bug.cgi?id=42330 Differential Revision: https://reviews.llvm.org/D44865 llvm-svn: 363993
53 lines
1.7 KiB
C++
53 lines
1.7 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++98, 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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int main(int, char**)
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{
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std::variant<int, int> v1;
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std::variant<long, long long> v2;
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std::variant<char> v3;
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v1 = 1; // expected-error {{no viable overloaded '='}}
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v2 = 1; // expected-error {{no viable overloaded '='}}
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v3 = 1; // expected-error {{no viable overloaded '='}}
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std::variant<std::string, float> v4;
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std::variant<std::string, double> v5;
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std::variant<std::string, bool> v6;
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v4 = 1; // expected-error {{no viable overloaded '='}}
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v5 = 1; // expected-error {{no viable overloaded '='}}
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v6 = 1; // expected-error {{no viable overloaded '='}}
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std::variant<int, bool> v7;
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std::variant<int, bool const> v8;
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std::variant<int, bool volatile> v9;
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v7 = "meow"; // expected-error {{no viable overloaded '='}}
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v8 = "meow"; // expected-error {{no viable overloaded '='}}
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v9 = "meow"; // expected-error {{no viable overloaded '='}}
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std::variant<bool> v10;
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std::variant<bool> v11;
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std::variant<bool> v12;
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v10 = std::true_type(); // expected-error {{no viable overloaded '='}}
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v11 = std::unique_ptr<char>(); // expected-error {{no viable overloaded '='}}
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v12 = nullptr; // expected-error {{no viable overloaded '='}}
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}
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