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What's “requestCode” used for on PendingIntent?

...sed to retrieve the same pending intent instance later on (for cancelling, etc). Yes, my guess is the alarms will override each other. I would keep the request codes unique. share | improve this an...
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How can I join elements of an array in Bash?

... +1. What about printf -v bar ",%s" "${foo[@]}". It is one fork less (actually clone). It is even forking reading a file: printf -v bar ",%s" $(<infile). – TrueY Jun 8 '13 at 22:55 ...
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How dangerous is it to access an array out of bounds?

...isk), possibly bringing down the entire system. A lot of malware (viruses, etc.) exploits buffer overruns to gain unauthorized access to the system. (One historical example: I've heard that on some old systems with core memory, repeatedly accessing a single memory location in a tight loop could li...
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Build fat static library (device + simulator) using Xcode and SDK 4+

...cript to let you auto-include Bundles (i.e. include PNG files, PLIST files etc from your library!) - see below (scroll to bottom) now supports iPhone5 (using Apple's workaround to the bugs in lipo). NOTE: the install instructions have changed (I can probably simplify this by changing the script in f...
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Doing something before program exit

...t this works great for normal termination of the script, but it won't get called in all cases (e.g. fatal internal errors). share | improve this answer | follow ...
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Which characters make a URL invalid?

... @techiferous, Yeah, I forgot to allow "%" escaped characters. It should've looked more like: /^([!#$&-;=?-[]_a-z~]|%[0-9a-fA-F]{2})+$/ Was there anything else that you found it should've been accepting? (Just to be clear, that regex only checks ...
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What's the best way of scraping data from a website? [closed]

...settle for "not too bad". I agree, it's doable in PHP (and FORTRAN, C, VB, etc.) but unless your problem is really really simple then it would be a much better idea to use the right tools for the job. And again, unless you have an incredibly simple problem to solve ... what does it matter that reg...
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ExecutorService, how to wait for all tasks to finish

...sDone() if asked.) This avoids all the manual shutdown, awaitTermination, etc... and allows you to reuse this ExecutorService neatly for multiple cycles, if desired. There are a few related questions on SO: How to wait for all threads to finish Return values from java threads invokeAll() not wil...
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Safely remove migration In Laravel

... I accidentally created a migration with a bad name (command: php artisan migrate:make). I did not run (php artisan migrate) the migration, so I decided to remove it. My steps: Manually delete the migration file under app/database/mig...
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Version of Apache installed on a Debian machine

...: APR 1.2.7, APR-Util 1.2.7 Compiled using: APR 1.2.7, APR-Util 1.2.7 ... etc ... If it does not work for you, run the command with sudo. share | improve this answer | fol...