c99a585399
Remove a bunch of LIBCPP_CXX03_LANG. This is the result of a rabbithole to re-eliminate the workaround I introduced into std::cref in D117953. It turns out that Clang's C++03 mode (the only compiler we care about C++03 for) now supports all the things we were originally eschewing via LIBCPP_CXX03_LANG; we can fully support these reference_wrapper features in C++03 mode, and un-XFAIL the relevant tests. Drive-by constexprify a few more tests. Differential Revision: https://reviews.llvm.org/D117974
30 lines
686 B
C++
30 lines
686 B
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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// <functional>
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// reference_wrapper
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// template <ObjectType T> reference_wrapper<T> ref(T& t);
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// Don't allow binding to a temp
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#include <functional>
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struct A {};
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const A source() {return A();}
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int main(int, char**)
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{
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std::reference_wrapper<const A> r = std::ref(source());
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(void)r;
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return 0;
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}
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