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How to build Qt for Visual Studio 2010
...t with Visual Studio 2010, so after collecting all the bits of information and some trial and error, I would like to write my solution into a guide.
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Best way to do nested case statement logic in SQL Server
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Nice, I just tested to ensure that it short-circuits, and was suprised to find that it does. So if condition1 checked for a divide by zero, it appears that it's safe to do it in condition2. Not sure if this is guaranteed.
– Cade Roux
Feb ...
Time complexity of Euclid's Algorithm
...ow what happens over two iterations:
a', b' := a % b, b % (a % b)
Now a and b will both decrease, instead of only one, which makes the analysis easier. You can divide it into cases:
Tiny A: 2a <= b
Tiny B: 2b <= a
Small A: 2a > b but a < b
Small B: 2b > a but b < a
Equal: a ==...
Synchronization vs Lock
...in order to access the critical resource. It gives method such as park() and unpark() .
11 Answers
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Twitter image encoding challenge [closed]
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Alright, here's mine: nanocrunch.cpp and the CMakeLists.txt file to build it using CMake. It relies on the Magick++ ImageMagick API for most of its image handling. It also requires the GMP library for bignum arithmetic for its string encoding.
I based my solu...
SQL: deleting tables with prefix
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You cannot do it with just a single MySQL command, however you can use MySQL to construct the statement for you:
In the MySQL shell or through PHPMyAdmin, use the following query
SELECT CONCAT( 'DROP TABLE ', GROUP_CONCAT(table_name) , ';' )
AS statement FROM info...
RabbitMQ message size and types
...ue with two preconditions:
The thing you are sending can be converted to and from a bytestring
The consumer knows exactly what it is getting and how to convert it to the original object
Strings are pretty easy, they have a built in method for converting to and from bytes. If you know it is a s...
Hide div after a few seconds
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and you have beaten crazy Joel Coehoorn very nicely in one shot! :)
– cregox
Mar 18 '11 at 19:14
3
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How do I find out my MySQL URL, host, port and username?
I need to find my MySQL username. When I open the MySQL command line client, it only asks me for my password. I don't remember my username. And for connectivity with JDBC, I need the URL, host and port number. Where do I find all of these?
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How to reuse an ostringstream?
I'd like to clear out and reuse an ostringstream (and the underlying buffer) so that my app doesn't have to do as many allocations. How do I reset the object to its initial state?
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