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Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C
...n they're not as fast :)
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Low Memory (32-bit int, 32-bit machine)(from here):
unsigned int
reverse(register unsigned int x)
{
x = (((x & 0xaaaaaaaa) >> 1) | ((x & 0x55555555) << 1));
x = (((x & 0xcccccccc) >> 2) | ((x & 0x33333333) << 2));
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Table is marked as crashed and should be repaired
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Run this from your server's command line:
mysqlcheck --repair --all-databases
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phpmyadmin logs out after 1440 secs
... if I can add to this, also change in config.default.php line 698 from $cfg['LoginCookieValidity'] = 1440; to $cfg['LoginCookieValidity'] = 36000;
– mstation
Mar 21 '16 at 5:16
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LinkedBlockingQueue vs ConcurrentLinkedQueue
...mes in, and inefficiencies when it's empty (due to waking up unnecessarily from sleeps).
From the docs for BlockingQueue:
BlockingQueue implementations are designed to be used primarily for producer-consumer queues
I know it doesn't strictly say that only blocking queues should be used for pr...
How to load a tsv file into a Pandas DataFrame?
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Note: As of 17.0 from_csv is discouraged: use pd.read_csv instead
The documentation lists a .from_csv function that appears to do what you want:
DataFrame.from_csv('c:/~/trainSetRel3.txt', sep='\t')
If you have a header, you can pass head...
Is it possible to create a File object from InputStream
Is there any way to create a java.io.File object from an java.io.InputStream ?
7 Answers
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C# “internal” access modifier when doing unit testing
...nalsVisibleTo , we can test functions that we don't want to declare public from the testing project. This makes me think that I should just always use internal because at least each project (should?) have its own testing project. Can you guys tell me why I shouldn't do this? When should I use pri...
Is there an easy way to create ordinals in C#?
... feminine; maybe some language has also a neutral case (distinguing things from men/animals)
– M.Turrini
Jun 9 '09 at 9:42
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How do I get the full path to a Perl script that is executing?
... are provided by the Cwd module and tell you where the script is being run from
The module FindBin provides the $Bin & $RealBin variables that usually are the path to the executing script; this module also provides $Script & $RealScript that are the name of the script
__FILE__ is the actual ...
Can you delete multiple branches in one command with Git?
...n on git branch -D/-d works fine for me. Might want to update yours (maybe from the most recent git.git contrib directory).
– Cascabel
Sep 8 '10 at 23:04
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