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Why doesn't the example compile, aka how does (co-, contra-, and in-) variance work?
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slot.get will then throw an error at runtime as it was unsuccessful in converting an Animal to Dog (duh!).
In general mutability doesn't go well with co-variance and contra-variance. That is the reason why all Java collections are invariant.
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How to output something in PowerShell
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Objects also don't get blindly converted to string, but pass through a formatter which decides on what to do with them. That's why you see Get-ChildItem's output coming in a table form, for example, and results with many properties (e.g. WMI) default to Fo...
Why not use java.util.logging?
...o I would think that a massive library written in 2002 with log4j could be converted to JUL in a matter of minutes with an automated tool. (I don't know if one exist, though). So why doesn't it happen?
– peterh
Jul 6 '12 at 9:49
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What are bitwise shift (bit-shift) operators and how do they work?
...d together makes 320:
(row * 320) = (row * 256) + (row * 64)
Now we can convert that into left shifts:
(row * 320) = (row << 8) + (row << 6)
For a final result of:
memoryOffset = ((row << 8) + (row << 6)) + column
Now we get the same offset as before, except instead ...
What does Html.HiddenFor do?
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public ActionResult Edit(FormCollection collection)
{
ViewModel.ID = Convert.ToInt32(collection["ID"]);
}
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Can a C++ enum class have methods?
...an have methods (see here for the restrictions!).
I have a sample, how to convert bit mask values (as shown above) to their corresponding bit indices, that can be used along a std::bitset here: BitIndexConverter.hpp
I've found this pretty useful for enhancing readability of some 'flag' decison base...
Cannot use a CONTAINS or FREETEXT predicate on table or indexed view because it is not full-text ind
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create fulltext catalog FullTextCatalog as default
select *
from sys.fulltext_catalogs
Create full-text search index.
create fulltext index on Production.ProductDescription(Description)
key index PK_ProductDescription_ProductDescriptionID
Before you create the index, make sure:
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What techniques can be used to speed up C++ compilation times?
...older. To visualize these traces, you can use the Templight Tools that can convert these to other formats. Follow these instructions to install templight-convert. We usually use the callgrind output. You can also use the GraphViz output if your project is small:
$ templight-convert --format callgrin...
Is Fortran easier to optimize than C for heavy calculations?
...t heavily use c++ for their high performance modeling. Additionally Sandia converted one of their modeling software (LAMMPS) over from fortran to c++ adding in a number of awesome enhancements.
– Zachary Kraus
Sep 9 '15 at 3:46
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Amazon S3 - HTTPS/SSL - Is it possible? [closed]
... This is the perfect solution for web developers without a devops or sys-admin team. Sure, your assets won't have an elegant domain, but how many customers inspect the html or underlying requests and tsk tsk tsk at the domain url? Not many! Getting your static assets out of you application and...