转换字节[，]为byte [] [英] Convert byte[,] to byte[]

问题描述

有谁知道的扁平化的二维数组（非锯齿状）在C＃中的一维和回来的有效途径。我知道在后端C＃必须守住它作为一维数组我只想让后端1D阵列上的手柄，如果在所有可能的。

Does anyone know of an efficient way to flatten a 2d array (non-jagged) in C# to a 1d and back again. I know in the back end C# must hold onto it as a 1d array I would just like to get a handle on the back end 1d array if at all possible.

为什么我想这样做的原因是因为我希望能够在管理code把它作为一个2D，有时我想牵手而过是一维非托管的dll进口code（数字图像处理优化的汇编是一个很好的例子）。

The reason why I would like to do this is because I would like to be able to in managed code have it as a 2d, at times I would like to hand it off as a 1d to unmanaged dll imported code (optimized assembly in digital image processing is a good example).

推荐答案

您不能从字节的托管字节[] 阵列[，] 不复制它（不，我知道的，反正）。

You can't get a managed byte[] array from a byte[,] without copying it out (not that I know of, anyway).

如果您熟悉不安全 code可以解决一个字节* 在阵列上和我认为，应该工作：

If you're comfortable with unsafe code you can fix a byte* on the array and I believe that should work:

fixed (byte* ptr = array)
{
    for (int i = 0; i < N; ++i)
    {
        byte b = ptr[i];
        // Do whatever you need.
    }
}

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