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
71 lines
1.6 KiB
C++
71 lines
1.6 KiB
C++
//===----------------------------------------------------------------------===//
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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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//
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// UNSUPPORTED: libcpp-has-no-threads
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// UNSUPPORTED: c++03
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// <future>
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// class packaged_task<R(ArgTypes...)>
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// future<R> get_future();
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#include <future>
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#include <cassert>
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#include "test_macros.h"
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class A
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{
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long data_;
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public:
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explicit A(long i) : data_(i) {}
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long operator()(long i, long j) const {return data_ + i + j;}
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};
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int main(int, char**)
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{
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{
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std::packaged_task<double(int, char)> p(A(5));
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std::future<double> f = p.get_future();
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p(3, 'a');
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assert(f.get() == 105.0);
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}
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#ifndef TEST_HAS_NO_EXCEPTIONS
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{
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std::packaged_task<double(int, char)> p(A(5));
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std::future<double> f = p.get_future();
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try
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{
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f = p.get_future();
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assert(false);
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}
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catch (const std::future_error& e)
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{
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assert(e.code() == make_error_code(std::future_errc::future_already_retrieved));
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}
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}
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{
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std::packaged_task<double(int, char)> p;
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try
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{
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std::future<double> f = p.get_future();
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assert(false);
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}
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catch (const std::future_error& e)
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{
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assert(e.code() == make_error_code(std::future_errc::no_state));
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}
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}
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#endif
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return 0;
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}
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