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4e3e15ad99
Summary: Libc++ still uses per-feature configuration macros when configuring for C++11. However libc++ requires a feature-complete C++11 compiler so there is no reason to check individual features. This patch starts the process of removing the feature specific macros and replacing their usage with `_LIBCPP_CXX03_LANG`. This patch removes the __config macros: * _LIBCPP_HAS_NO_TRAILING_RETURN * _LIBCPP_HAS_NO_TEMPLATE_ALIASES * _LIBCPP_HAS_NO_ADVANCED_SFINAE * _LIBCPP_HAS_NO_DEFAULT_FUNCTION_TEMPLATE_ARGS * _LIBCPP_HAS_NO_STATIC_ASSERT As a drive I also changed our C++03 static_assert to use _Static_assert if available. I plan to commit this without review if nobody voices an objection. Reviewers: mclow.lists Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D24895 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@282347 91177308-0d34-0410-b5e6-96231b3b80d8
82 lines
2.7 KiB
C++
82 lines
2.7 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <memory>
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// template <class Alloc>
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// struct allocator_traits
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// {
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// template <class T> using rebind_traits = allocator_traits<rebind_alloc<T>>;
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// ...
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// };
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#include <memory>
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#include <type_traits>
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#include "test_macros.h"
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template <class T>
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struct ReboundA {};
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template <class T>
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struct A
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{
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typedef T value_type;
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template <class U> struct rebind {typedef ReboundA<U> other;};
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};
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template <class T, class U>
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struct ReboundB {};
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template <class T, class U>
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struct B
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{
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typedef T value_type;
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template <class V> struct rebind {typedef ReboundB<V, U> other;};
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};
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template <class T>
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struct C
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{
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typedef T value_type;
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};
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template <class T, class U>
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struct D
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{
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typedef T value_type;
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};
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template <class T>
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struct E
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{
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typedef T value_type;
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template <class U> struct rebind {typedef ReboundA<U> otter;};
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};
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int main()
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{
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#if TEST_STD_VER >= 11
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static_assert((std::is_same<std::allocator_traits<A<char> >::rebind_traits<double>, std::allocator_traits<ReboundA<double> > >::value), "");
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static_assert((std::is_same<std::allocator_traits<B<int, char> >::rebind_traits<double>, std::allocator_traits<ReboundB<double, char> > >::value), "");
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static_assert((std::is_same<std::allocator_traits<C<char> >::rebind_traits<double>, std::allocator_traits<C<double> > >::value), "");
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static_assert((std::is_same<std::allocator_traits<D<int, char> >::rebind_traits<double>, std::allocator_traits<D<double, char> > >::value), "");
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static_assert((std::is_same<std::allocator_traits<E<char> >::rebind_traits<double>, std::allocator_traits<E<double> > >::value), "");
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#else
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static_assert((std::is_same<std::allocator_traits<A<char> >::rebind_traits<double>::other, std::allocator_traits<ReboundA<double> > >::value), "");
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static_assert((std::is_same<std::allocator_traits<B<int, char> >::rebind_traits<double>::other, std::allocator_traits<ReboundB<double, char> > >::value), "");
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static_assert((std::is_same<std::allocator_traits<C<char> >::rebind_traits<double>::other, std::allocator_traits<C<double> > >::value), "");
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static_assert((std::is_same<std::allocator_traits<D<int, char> >::rebind_traits<double>::other, std::allocator_traits<D<double, char> > >::value), "");
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static_assert((std::is_same<std::allocator_traits<E<char> >::rebind_traits<double>::other, std::allocator_traits<E<double> > >::value), "");
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#endif
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}
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