移位大二进制文件? [英] Bit Shift Large Binary File?

问题描述

在C中对大量二进制数据进行位移的最佳或推荐方法是什么?我有一个200K的二进制文件，我想先左移，然后再右移全部.

What is the best or recommended method for bit shifting a large amount of binary data in C? I have a 200K binary file and I want to left, then right shift the entire lot.

推荐答案

如果您的操作系统支持，请使用内存映射文件.然后做一点移位，它将非常非常有效率.

If your OS can support it use a memory mapped file. Then do a bit shift It'll be very very efficient.

有关更多信息，请参见以下答案:内存的优点是什么映射的文件?

See this answer for more info: What are the advantages of memory-mapped files?

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