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How does HashSet compare elements for equality?
...ng instead of just equality comparisons, you should use SortedSet<T> from .NET 4 - which allows you to specify an IComparer<T> instead of an IEqualityComparer<T>. This will use IComparer<T>.Compare - which will delegate to IComparable<T>.CompareTo or IComparable.Compare...
How big can a MySQL database get before performance starts to degrade
...formance again, at least to a certain degree. For example 37 signals went from 32 GB RAM to 128GB of RAM for the Basecamp database server.
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Error Code: 1005. Can't create table '…' (errno: 150)
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This could also happen when exporting your database from one server to another and the tables are listed in alphabetical order by default.
So, your first table could have a foreign key of another table that is yet to be created. In such cases, disable foreign_key_checks and cr...
Uncaught SyntaxError: Unexpected token :
...s your browser's reaction to the unexpected top line <!DOCTYPE html> from the server.
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AutoLayout with hidden UIViews?
...: if the gap between the two views are x, in order for the view B to start from view A position, we must also change the gap constraint constant to 0, too, right?
– kernix
Mar 7 '14 at 9:14
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Creating an empty file in C#
...mmunication. In this case, it can help to have the file creation be atomic from the outside world's point of view (particularly if the thing being triggered is going to delete the file to "consume" the trigger).
So it can help to create a junk name (Guid.NewGuid.ToString()) in the same directory as...
How do I check if a type provides a parameterless constructor?
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Short and Sweet. +1 from the future.
– TaterJuice
Jan 9 '16 at 0:08
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Maximum filename length in NTFS (Windows XP and Windows Vista)?
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199 on Windows XP NTFS, I just checked.
This is not theory but from just trying on my laptop. There may be mitigating effects, but it physically won't let me make it bigger.
Is there some other setting limiting this, I wonder? Try it for yourself.
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How do I best silence a warning about unused variables?
...ot all the values passed to functions are utilised. Hence I get a warning from GCC telling me that there are unused variables.
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How costly is .NET reflection?
...of the reflection I see on a day to day basis is used to populate entities from data readers or other repository type structures I decided to benchmark performance specifically on reflection when it is used to get or set an objects properties.
I devised a test which I think is fair since it caches ...