How to use unsafe code in safe contex?

Question

I need to use SecureString for a Microsoft's class and i found the following code on the internet:

public static class SecureStringExt {     public static SecureString ConvertToSecureString(this string password)     {         if (password == null)             throw new ArgumentNullException("password");          unsafe //Red highlighted line         {             fixed (char* passwordChars = password)             {                 var securePassword = new SecureString(passwordChars, password.Length);                 securePassword.MakeReadOnly();                 return securePassword;             }         }     } } 

The only problem is that the unsafe keyword keeps throwing me error saying Cannot use unsafe construct in safe context. Unfortunately i couldn't find why is this happening...

Note: The above code runs in LINQPad but not in VS2013 (with resharper).

Answer 1

I am not sure if you need unsafe code in that case (see answer of @mybirthname).

But when unsafe code is needed, it can be enabled in Project properties.

• In the main menu, click Project and then <ProjectName> properties...
• Click on the Build page.
• Select Allow unsafe code.

Or one can specify /unsafe compiler option explicitly.