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Difference between malloc and calloc?
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calloc() gives you a zero-initialized buffer, while malloc() leaves the memory uninitialized.
For large allocations, most calloc implementations under mainstream OSes will get known-zeroed pages from the OS (e.g. via POSIX mm...
Can someone give an example of cosine similarity, in a very simple, graphical way?
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I am really glad this was useful to you, Alex. Sorry for the delay in responding. I haven't visited StackOverflow in a while. Actually this is an example of an "inner product space". There's a basic discussion on wikipedia.
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What is the difference between exit() and abort()?
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abort() exits your program without calling functions registered using atexit() first, and without calling objects' destructors first. exit() does both before exiting your program. It does not call destructors for automatic objects though. So
A a;
void test() ...
MySQL join with where clause
...s the subset of user_category_subscriptions with a user_id of 1 to join to all of the rows in categories. This will give you all of the rows in categories, while only the categories that this particular user has subscribed to will have any information in the user_category_subscriptions columns. Of c...
Is it possible for intellij to organize imports the same way as in Eclipse?
I'm working on a project where all the team members are using Eclipse and I'm the only IDEA user. This creates a lot of noise from imports rearrangements. The order in which eclipse imports is: Java, Javax, Org, Com, everything else in alphabetical order. Is it possible to configure IDEA to follow t...
What is “stdafx.h” used for in Visual Studio?
A file named stdafx.h is automatically generated when I start a project in Visual Studio 2010. I need to make a cross-platform C++ library, so I don't/can't use this header file.
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Are static fields inherited?
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3 in all cases, since the static int total inherited by SomeDerivedClass is exactly the one in SomeClass, not a distinct variable.
Edit: actually 4 in all cases, as @ejames spotted and pointed out in his answer, which see.
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javax vs java package
...rlier versions (which would be useful). Note from many years later: it actually ended up being in java after all.
I believe there are restrictions on the java package - I think classloaders are set up to only allow classes within java.* to be loaded from rt.jar or something similar. (There's certai...
Add a common Legend for combined ggplots
I have two ggplots which I align horizontally with grid.arrange . I have looked through a lot of forum posts, but everything I try seem to be commands that are now updated and named something else.
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How to change line-ending settings
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true or false are only two options, the installer has three
– qwertymk
May 2 '12 at 18:13
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