How to tell whether a variable has been initialized in C#?

Question

I know this is a dumb question and I guess it must have been asked before. However I am unable to find an answer to my question. Here is some sample code (which of course does not compile) to outline my problem: ``` class test { int[] val1; string val2; static bool somefunction(test x, test y) { dosomestuff() test result; while(result is nothing) { if(somecondition){result=new test(something);} } } } ``` The problem which I have is in the following line: ``` while(result is nothing) ``` This is the syntax from VB, which of course is not what the C# compiler accepts. Could somebody tell me how to resolve the problem?

Accepted Answer

The syntax you are looking for is:

```
while (result == null)
```

You also have to set `result = null;` to start with also

How to tell whether a variable has been initialized in C#?

Solution

Problem