问题描述
我有问题的理解FEATURE_PAL编译指令是指在.NET 4.0中源$ C $ C什么。它几乎是用在访问非托管code每类。
I am having problem with understanding what FEATURE_PAL compiler directive means in .net 4.0 source code. It is used almost in every class that access unmanaged code.
推荐答案
PAL =平台适配层。这是第一个，也是最重要的CLR的细节，从操作系统实现绝缘的。你的确看到它用在源$ C $ c中的参考源副本的.NET 4类。它出现在任何code，有对底层操作系统实现一个很强的依赖性，这种绕过code，因为它不能在一个操作系统Windows以外的工作。
PAL = Platform Adaptation Layer. It is first and foremost a detail of the CLR, insulating it from the operating system implementation. You'll indeed see it used in the Reference Source copy of the source code for the .NET 4 classes. It appears in any code that has a strong dependency on the underlying operating system implementation, bypassing such code since it cannot work on an operating system other than Windows.
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