Compiler Error CS0210
You must provide an initializer in a fixed or using
statement declaration
You must declare and initialize the variable in a fixed statement. For more information, see Unsafe Code and Pointers.
The following sample generates CS0210:
C#
// CS0210a.cs
// compile with: /unsafe
class Point
{
public int x, y;
}
public class MyClass
{
unsafe public static void Main()
{
Point pt = new Point();
fixed (int i) // CS0210
{
}
// try the following lines instead
/*
fixed (int* p = &pt.x)
{
}
fixed (int* q = &pt.y)
{
}
*/
}
}
The following sample also generates CS0210 because the using
statement has no initializer.
C#
// CS0210b.cs
using System.IO;
class Test
{
static void Main()
{
using (StreamWriter w) // CS0210
// Try this line instead:
// using (StreamWriter w = new StreamWriter("TestFile.txt"))
{
w.WriteLine("Hello there");
}
}
}
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