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Is it possible to make a type only movable and not copyable?
... the new struct or enum is itself Copy. If not, the compiler will print an error message. It can also only exist if the type doesn't have a Drop implementation.
To answer the question you didn't ask... "what's up with moves and copy?":
Firstly I'll define two different "copies":
a byte copy, w...
Remove duplicates in the list using linq
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This is the error I get when I try to use Distinct Comparer: "LINQ to Entities does not recognize the method 'System.Linq.IQueryable1[DataAccess.HR.Dao.CCS_LOCATION_TBL] Distinct[CCS_LOCATION_TBL](System.Linq.IQueryable1[DataAccess.HR.Da...
How do I test a file upload in rails?
... I get a "uninitialized constant ActionController::TestUploadedFile" error when I run a test with this code. Anything else I would need to require in the file?
– Vini.g.fer
May 21 '15 at 18:21
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Why generate long serialVersionUID instead of a simple 1L?
...ated very-large-number serialVersionUID (or the "expected" number from the error message). Otherwise, if you are keeping track of everything yourself, 0, 1, 2... is better.
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Unstaged changes left after git reset --hard
...ld be to institute a naming policy on your Git server (hooks) or sniff out errors in advance.
– ingyhere
Mar 3 '18 at 0:58
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Open another application from your own (intent)
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I tried this and got an error recommending to use the FLAG_ACTIVITY_NEW_TASK flag. I added this line before startActivity and it worked: intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
– david-hoze
Aug 21 '13 a...
Post parameter is always null
...the object to a string and then try and convert it and you'll see the JSON error. Check you're headers also.
– Nick Turner
May 13 '19 at 23:18
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How do I mock a service that returns promise in AngularJS Jasmine unit test?
... >= 200 && code <= 299) ? resolve({ code }) : reject({ code, error:true })
);
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How do you simulate Mouse Click in C#?
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I'm getting an error with this code: A call to PInvoke function 'MyForm!MyForm.Form1::mouse_event' has unbalanced the stack. This is likely because the managed PInvoke signature does not match the unmanaged target signature. Check that the ...
Java: How to convert List to Map
...tring.valueOf(i % 3), i -> i));
When running this code, you'll get an error saying java.lang.IllegalStateException: Duplicate key 1. This is because 1 % 3 is the same as 4 % 3 and hence have the same key value given the key mapping function. In this case you can provide a merge operator.
Here'...