Unsafe Code C# 設定

 

To set this compiler option in the Visual Studio development environment

1. Open the project's Properties page.

2. Click the Build property page.

3. Select the Allow Unsafe Code check box.

詳參：https://docs.microsoft.com/zh-tw/dotnet/csharp/language-reference/compiler-options/unsafe-compiler-option

the following is a method declared with the unsafe modifier:

C#

unsafe static void FastCopy(byte[] src, byte[] dst, int count)
{
    // Unsafe context: can use pointers here.
}

The scope of the unsafe context extends from the parameter list to the end of the method, so pointers can also be used in the parameter list:

C#

unsafe static void FastCopy ( byte* ps, byte* pd, int count ) {...}

You can also use an unsafe block to enable the use of an unsafe code inside this block. For example:

C#

unsafe
{
    // Unsafe context: can use pointers here.
}

To compile unsafe code, you must specify the -unsafe compiler option. Unsafe code is not verifiable by the common language runtime.