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error: ‘NULL’ was not declared in this scope
I get this message when compiling C++ on gcc 4.3
6 Answers
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What's the difference between deadlock and livelock?
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Taken from http://en.wikipedia.org/wiki/Deadlock:
In concurrent computing, a deadlock is a state in which each member of a group of actions, is waiting for some other member to release a lock
A livelock is similar to a deadlock,
except that the states of the
processes involved in the live...
iOS: How does one animate to new autolayout constraint (height)
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Git submodule update
...led having a detached head — it means the HEAD file points directly to a commit, not to a symbolic reference.
The issue is that you generally don’t want to work in a detached head environment, because it’s easy to lose changes.
If you do an initial submodule update, commit in that submodul...
Best Practice for Forcing Garbage Collection in C#
...ards to freeing up memory / garbage collection etc:
http://msdn.microsoft.com/en-us/library/66x5fx1b.aspx
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How to find the files that are created in the last hour in unix
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I still think the first example comment needs a revision. "change time" is the file status, not the file data
– KC Baltz
May 14 at 22:30
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Keep CMD open after BAT file executes
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Depending on how you are running the command, you can put /k after cmd to keep the window open.
cmd /k my_script.bat
Simply adding cmd /k to the end of your batch file will work too. Credit to Luigi D'Amico who posted about this in the comments below.
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Default filter in Django admin
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@Greg How do you completely remove the functionality of the filter and the filter tab out of the admin page?
– user5117926
Jul 16 '15 at 4:43
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How do I change screen orientation in the Android emulator?
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See developer.android.com/guide/developing/tools/…
– Mirko N.
Jan 2 '10 at 13:59
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How do I trap ctrl-c (SIGINT) in a C# console app
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Actually, that article recommends P/Invoke, and CancelKeyPress is mentioned only briefly in the comments. A good article is codeneverwritten.com/2006/10/…
– bzlm
Aug 21 '10 at 7:55
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