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Passing by reference in C
...u're passing the value of the pointer to the method and then dereferencing it to get the integer that is pointed to.
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Positions fixed doesn't work when using -webkit-transform
I am using -webkit-transform (and -moz-transform / -o-transform) to rotate a div. Also have position fixed added so the div scrols down with the user.
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System.Data.SQLite Close() not releasing database file
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Encountered the same problem a while ago while writing a DB abstraction layer for C# and I never actually got around to finding out what the issue was. I just ended up throwing an exception when you attempted to delete a SQLite DB using my library.
Anyway, this afternoon I...
Getting the error “Java.lang.IllegalStateException Activity has been destroyed” when using tabs with
... holds a ViewPager element which in turn has some fragment pages. When I initially start the application the application, I am able to switch between tabs no problem but when I press on tab2 for the second time I get the error mentioned above. The main activity is as follows:
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Eclipse error: “The import XXX cannot be resolved”
I'm trying to work with Hibernate in Eclipse.
I'm creating a new simple project and I've downloaded a collegue project too, via CVS.
Both don't work, while on my collegue's Eclipse do.
The problem is that, for each import of an Hibernate class, Eclipse says:
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MySQL: determine which database is selected?
...t use mysql_query (or mysqli_query, even better, or use PDO, best of all) with:
SELECT DATABASE() FROM DUAL;
Addendum:
There is much discussion over whether or not FROM DUAL should be included in this or not. On a technical level, it is a holdover from Oracle and can safely be removed. If you...
How many and which are the uses of “const” in C++?
...s that look still very obscure to me, one of these is const . You can use it in so many places and with so many different effects that is nearly impossible for a beginner to come out alive. Will some C++ guru explain once forever the various uses and whether and/or why not to use them?
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When should I use the HashSet type?
I am exploring the HashSet<T> type, but I don't understand where it stands in collections.
11 Answers
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Creating a comma separated list from IList or IEnumerable
...Enumerable<string> can be converted into a string array very easily with LINQ (.NET 3.5):
IEnumerable<string> strings = ...;
string[] array = strings.ToArray();
It's easy enough to write the equivalent helper method if you need to:
public static T[] ToArray(IEnumerable<T> sourc...
How to move all files including hidden files into parent directory via *
Its must be a popular question but I could not find an answer.
7 Answers
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