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Compiler Error CS1041

Identifier expected, 'keyword' is a keyword

A reserved word for the C# language was found where an identifier was expected. Replace the keyword with a user-specified identifier.

The following sample generates CS1041:

// CS1041a.cs
class MyClass
{
   public void f(int long)   // CS1041
   // Try the following instead:
   // public void f(int i)
   {
   }

   public static void Main()
   {
   }
}

When you are importing from another programming language that does not have the same set of reserved words, you can modify the reserved identifier with the @ prefix, as demonstrated in the following sample. For more information on using the @ prefix, see 2.4.2 Identifiers.

An identifier with an @ prefix is called a verbatim identifier.

// CS1041b.cs
class MyClass
{
   public void f(int long)   // CS1041
   // Try the following instead:
   // public void f(int @long)
   {
   }

   public static void Main()
   {
   }
}
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