Eric Fiselier
6d7a2cb57d
[libcxx] Use __decltype instead of __typeof__
Summary: Both clang and GCC provide C++11 decltype semantics as __decltype in c++03 mode. We should use this instead of __typeof__ when availble. GCC added __decltype in 4.6.0, and AFAIK clang provided __decltype ever since 3.3. Unfortunately `__has_builtin(__decltype)` doesn't work for clang so we need to check the compiler version instead. Reviewers: mclow.lists Reviewed By: mclow.lists Subscribers: cfe-commits Differential Revision: http://reviews.llvm.org/D10426 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@239662 91177308-0d34-0410-b5e6-96231b3b80d8
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