Why do I get the error Unsafe code may only appear if compiling with unsafe

Question

Why do I get the following error      Unsafe code may only appear if compiling with  unsafe     I work in C  and Visual Studio 2008 for programming on Windows nbsp CE

User · Answer

Probably because you re using unsafe code   Are you doing something with pointers or unmanaged assemblies somewhere

User · Answer

To use unsafe code blocks  open the properties for the project  go to the Build tab and check the Allow unsafe code checkbox  then compile and run   class myclass        public static void Main string   args                  unsafe                         int iData   10               int  pData    amp iData               Console WriteLine  Data is     iData                Console WriteLine  Address is      int pData                         Output   Data is 10 Address is 1831848

User · Answer

Here is a screenshot

User · Answer

To use unsafe code blocks  the project has to be compiled with the  unsafe switch on   Open the properties for the project  go to the Build tab and check the Allow unsafe code checkbox

User · Answer

Search your code for unsafe blocks or statements  These are only valid is compiled with  unsafe

User · Answer

For everybody who uses Rider you have to select your project Right Click Properties Configurations Then select Debug and Release and check  Allow unsafe code  for both

[c#] Why do I get the error "Unsafe code may only appear if compiling with /unsafe"?

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