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EXC_BAD_ACCESS signal received
...e some error in your memory management. You said you've been working on iPhone development for a few weeks, but not whether you are experienced with Objective C in general. If you've come from another background it can take a little while before you really internalise the memory management rules - u...
Linux command (like cat) to read a specified quantity of characters
...1
Note that, if you want to specify the input file name, dd has old-fashioned argument parsing, so you would do:
dd count=5 bs=1 if=filename
Note also that dd verbosely announces what it did, so to toss that away, do:
dd count=5 bs=1 2>&-
or
dd count=5 bs=1 2>/dev/null
...
What does functools.wraps do?
In a comment on this answer to another question , someone said that they weren't sure what functools.wraps was doing. So, I'm asking this question so that there will be a record of it on StackOverflow for future reference: what does functools.wraps do, exactly?
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Xcode 4 - detach the console/log window
...out keyboard shortcuts for that yet.
I usually keep the Debugging tab and one other tab in a separate window, for debugging tasks, and all my other editing tabs in a different window (and the debugging window on a separate monitor with the simulator). With the settings above it also means that, whi...
A variable modified inside a while loop is not remembered
...
echo -e $lines | while read line
...
done
The while loop is executed in a subshell. So any changes you do to the variable will not be available once the subshell exits.
Instead you can use a here string to re-write the while loop to be in the main shell proces...
Output array to CSV in Ruby
...nd any good documentation on how to write an array into a CSV file. Can anyone tell me how to do this?
6 Answers
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Android Game Keeps Getting Hacked [closed]
...been through this several times now, we release a game (for cheap) and someone hacks it and puts it up on a mirror. We setup Google Alerts for all our apps, so we get told daily who's doing the hacking. So far, we have implemented the licensing service as Google has suggested, our salt is randomly...
Left-pad printf with spaces
...en you know how wide you want the column, but the data changes (well, it's one way you can do it).
If you know you want exactly 40 spaces then some text, just save the 40 spaces in a constant and print them. If you need to print multiple lines, either use multiple printf statements like the one ab...
IIS7 Cache-Control
...s.google.com/speed/docs/best-practices/caching Do not set it to more than one year in the future, as that violates the RFC guidelines.
– foxontherock
Jun 26 '13 at 13:13
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JUnit confusion: use 'extends TestCase' or '@Test'?
... The new @Test annotation is org.junit.jupiter.api.Test (the "old" JUnit 4 one was org.junit.Test), but it works pretty much the same as the JUnit 4 one.
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