Initialize to None
ns at null.com
Sun Sep 6 04:09:36 UTC 2020
On Sunday, 6 September 2020 at 03:56:51 UTC, Steven Schveighoffer
> On 9/5/20 11:42 PM, N.S. wrote:
>> I'd like to check whether a variable is initialized or not.
>> And I'd also like to uninitialize a variable that is already
>> initialized. Thanks!
>> int x = void;
>> if (x == void)
> There isn't a way to check this.
>> writeln("x not initialized");
>> // OK, use x
>> // Uninitialize x
>> x = void;
> When you set the initial value of x to void, it means "don't do
> anything, let whatever data is already on the stack be the
> value of x".
> So "uninitialize" doesn't really mean anything. It would
> technically mean "do nothing".
Do I have to create additional variable bool x_is_valid? Problem
is I got many variables. Thanks.
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