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How to identify platform/compiler from preprocessor macros?
...tionals.h> inside #ifdef __APPLE__, which then gives you a TARGET_OS_IPHONE #define.
– Ted Mielczarek
Aug 18 '11 at 11:51
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Restarting cron after changing crontab file?
...enever a crontab file is modified
But if you just want to make sure its done anyway,
sudo service cron reload
or
/etc/init.d/cron reload
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What's the Hi/Lo algorithm?
...@Adam: Fundamentally, nothing - it's just potentially cheaper to increment one value (the "high" part) than to generate a bunch of keys. (It's potentially much cheaper in terms of data transfer - you can "reserve" a huge number of keys with minimal bandwidth.)
– Jon Skeet
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Are there legitimate uses for JavaScript's “with” statement?
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For those still opposed, one could always use a closure: for (var i = 0; i < 3; ++i) { setTimeout ((function () { var num = i; return function () { alert (num); }; }) (), 10);}
– Thomas Eding
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How can I store my users' passwords safely?
...more invisible screw up possibilities than most programmers could tackle alone, using a standard library is almost always easiest and most secure (if not the only) available option.
The new PHP password API (5.5.0+)
If you are using PHP version 5.5.0 or newer, you can use the new simplified pass...
How to get disk capacity and free space of remote computer
I have this one-liner:
15 Answers
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Resize Google Maps marker icon image
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Yeah agree with @bbodenmiller, scaledSize might be the one you are looking for. For my project I use scaledSize and that works for me. var icon = { url: imageName, scaledSize: new google.maps.Size(8, 12) };
– user908645
Apr 16 '15 at 6:...
SQL : BETWEEN vs =
... otherwise guaranteed that your datetime values will never have a time component. Being consistent about this will make it less likely that you'll use BETWEEN by mistake instead of >= and <, and either get some data in the query that you didn't mean to, or think that you were getting an addit...
Asynchronous shell exec in PHP
... in some situations this is absolutely the best solution. it was the only one that worked for me to release a "sudo reboot" ("echo 'sleep 3; sudo reboot' | at now") from a webgui AND finish rendering the page .. on openbsd
– Kaii
Aug 13 '09 at 18:47
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How do I get the opposite (negation) of a Boolean in Python?
...True, False, True]
Do not use the bitwise invert operator ~ on booleans
One might be tempted to use the bitwise invert operator ~ or the equivalent operator function operator.inv (or one of the other 3 aliases there). But because bool is a subclass of int the result could be unexpected because it...