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How can I determine whether a 2D Point is within a Polygon?
...float for everything. macOS only knows points and a point can translate to one pixel, but depending on monitor resolution, it might translate to something else. On retina screens half a point (0.5/0.5) is pixel. Still, I never noticed that macOS UIs are significantly slower than other UIs. After all...
Example for boost shared_mutex (multiple reads/one write)?
...< boost::shared_mutex > lock(_access);
// do work here, without anyone having exclusive access
}
void conditional_writer()
{
boost::upgrade_lock< boost::shared_mutex > lock(_access);
// do work here, without anyone having exclusive access
if (something) {
boost::upgrade_to_...
Only one expression can be specified in the select list when the subquery is not introduced with EXI
...lumn is it supposed to compare A_ID to? Your subquery must only return the one column needed for the comparison to the column on the other side of the IN. So the query needs to be of the form:
SELECT * From ThisTable WHERE ThisColumn IN (SELECT ThatColumn FROM ThatTable)
You also want to add sort...
How do I programmatically “restart” an Android app?
Firstly, I know that one should not really kill/restart an application on Android. In my use case I want to factory-reset my application in a specific case where a server sends a specific information to the client.
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Is there still any reason to learn AWK?
I am constantly learning new tools, even old fashioned ones, because I like to use the right solution for the problem.
24 A...
How can I split and trim a string into parts all on one line?
...you get an exception. if line does not contain ';' you'll have a list with one string corresponding to the trimmid line
– Cédric Rup
Jan 28 at 13:30
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How does lock work exactly?
... line. since it's just a ref to begin with, what good does making another one do?
– priehl
Sep 25 '14 at 17:47
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Using two values for one switch case statement
... @trig lol. I'm doing that kind of thing a lot lately - blaming iPhone thumb typing. Cheers
– Bohemian♦
May 23 '13 at 12:17
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How do I get Windows to go as fast as Linux for compiling C++?
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This one, thanks to the Win vs. Lin subject is more of a fanboy magnet. Also the question is rather nuanced unlike direct ones which just ask for commands or methods of usage.
– Noufal Ibrahim
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How to recover stashed uncommitted changes
... but there were some changes which were very important among those stashed ones. Is there any way to get back those changes?
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