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例如,如果我包含 'chrono' 或 'type_traits' 它无法找到标题并给我一个错误,但如果我使用 lamdas 或 auto/decltype 它编译得很好。我正在使用带有标志的 Xcode 4.5.1,C++ Language Dialect=C++11[-std=c++11] 和 C++ Standard Library = libc++[LLVM C++ standard library with C++11 support]