Compiler Error CS0023
Operator 'operator' cannot be applied to operand of type 'type'
An attempt was made to apply an operator to a variable whose type was not designed to work with the operator. For more information, see Types and C# Operators.
The following sample generates CS0023:
// CS0023.cs
namespace x
{
public class a
{
public static void Main()
{
string s = "hello";
s = -s; // CS0023, minus operator not allowed on strings
}
}
}
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