byte []到byte * ...最快的方法是什么？ [英] byte[] to byte*... What is the fastest way?
问题描述
主题说明了一切...我想使用byte []并将其用作byte *所以我
可以将指针递增到迭代它。
C＃中最快的方法是什么？
谢谢
ThunderMusic
Hi,
The subject says it all... I want to use a byte[] and use it as byte* so I
can increment the pointer to iterate through it.
What is the fastest way of doing so in C#?
Thanks
ThunderMusic
推荐答案
ThunderMusic，
使用不安全的代码：
byte [] bytes = ...;
不安全
{
固定（字节* p =字节） ）
{
//在这里使用指针。
}
}
事实上，这是唯一的方法，因为你需要在阵列的位置固定
以防止引用移动。
您是否有理由需要指针，或者您只是想寻找一种更快的方式来迭代数组？
-
- Nicholas Paldino [.NET / C＃MVP]
- mv*@spam.guard.caspershouse.com
" ThunderMusic" < No ************************* @ NoSpAm.com写信息
新闻：％2 **** ************ @ TK2MSFTNGP04.phx.gbl ...
ThunderMusic,
Use unsafe code:
byte[] bytes = ...;
unsafe
{
fixed (byte* p = bytes)
{
// Work with pointer here.
}
}
As a matter of fact, that''s the only way to do it, as you need to pin
down the location of the array to prevent the reference from moving around.
Is there a reason you need the pointer, or are you just looking for a
faster way to iterate through the array?
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com
"ThunderMusic" <No*************************@NoSpAm.comwrote in message
news:%2****************@TK2MSFTNGP04.phx.gbl...
主题说这一切...我想使用byte []并将其用作byte *所以我
可以递增指针以迭代它。
在C＃中这样做的最快方法是什么？
谢谢
ThunderMusic
Hi,
The subject says it all... I want to use a byte[] and use it as byte* so I
can increment the pointer to iterate through it.
What is the fastest way of doing so in C#?
Thanks
ThunderMusic
>主题说明了一切...我想使用byte []并将其用作byte *所以我
>The subject says it all... I want to use a byte[] and use it as byte* so I
>可以递增指针以迭代它。
在C＃中这样做的最快方法是什么？
>can increment the pointer to iterate through it.
What is the fastest way of doing so in C#?
固定报表？
Mattias
-
Mattias Sj？gren [C＃MVP] mattias @ mvps.org
http：/ /www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
请回复到新闻组。
The fixed statement?
Mattias
--
Mattias Sj?gren [C# MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.
" ThunderMusic" < No ************************* @ NoSpAm.com写信息
新闻：％2 **** ************ @ TK2MSFTNGP04.phx.gbl ...
Hi,
"ThunderMusic" <No*************************@NoSpAm.comwrote in message
news:%2****************@TK2MSFTNGP04.phx.gbl...
主题说这一切...我想使用byte []并将其用作byte *所以我
可以递增指针以迭代它。
在C＃中这样做的最快方法是什么？
Hi,
The subject says it all... I want to use a byte[] and use it as byte* so I
can increment the pointer to iterate through it.
What is the fastest way of doing so in C#?
出于好奇，为什么要这样做？
使用像
for（int i = 0; i< buffer.Lengh; i ++
buffer [i] .....
Out of curiosity, why you want to do that?
What is wrong with using a indexer like
for( int i=0; i< buffer.Lengh; i++
buffer[i] .....
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