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What is memory fragmentation?
...(because each of the large blocks it has allocated from the OS, for malloc etc. to sub-divide, has something left in it, even though most of each block is now unused).
Tactics to prevent memory fragmentation in C++ work by allocating objects from different areas according to their size and/or their ...
Using @property versus getters and setters
...e plenty of ways to do this in Python (getattr, setattr, __getattribute__, etc..., but a very concise and clean one is:
def set_email(self, value):
if '@' not in value:
raise Exception("This doesn't look like an email address.")
self._email = value
def get_email(self):
return s...
Would it be beneficial to begin using instancetype instead of id?
...
alloc, init, etc. are automatically promoted to instancetype by the compiler. That isn't to say there's no benefit; there is, but it isn't this.
– Steven Fisher
Feb 5 '13 at 19:17
...
Best way to organize jQuery/JavaScript code (2013) [closed]
...erent files, one for each functionality. For example sidebar.js, canvas.js etc. Then you can join them together for production using Grunt, together with Usemin you can have something like this:
In your html:
<!-- build:js scripts/app.js -->
<script src="scripts/sidebar.js"></script...
What exactly is a reentrant function?
...able and correct (no dangling pointers, no contradicting member variables, etc.).
7.3. Make sure all your objects are correctly encapsulated
No one else should have access to their internal data:
// bad
int & MyObject::getCounter()
{
return this->counter;
}
// ...
Why does Python code run faster in a function?
... until a dictionary is requested (e.g. via locals(), or inspect.getframe() etc.). Looking up an array element by a constant integer is much faster than searching a dict.
– dmw
Jun 28 '12 at 21:53
...
Java naming convention for static final variables [duplicate]
...s ChatMessage {
private final Logger logger = LoggerFactory.getLogger(getClass());
}
You wouldn't name it LOGGER in this scenario, so why should you name it all uppercase if it was static final? Its context, or intention, is the same in both circumstances.
Note: I reversed my position on pack...
What does auto&& tell us?
...g T&& may remove ownership from the caller (if a move ctor exists, etc.).
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How do Mockito matchers work?
...exception (or require non-zero or non-null values).
doReturn and doAnswer (etc) do not invoke the actual method and are often a useful alternative.
If you had called a mock method in the middle of stubbing (e.g. to calculate an answer for an eq matcher), Mockito would check the stack length against...
How can I exclude all “permission denied” messages from “find”?
... as standard output is going), or 2>&- which closes standard error, etc. See Redirections for the remaining gory details. (The code above is generic POSIX-like shell, not specific to bash.)
– Jonathan Leffler
Oct 25 '13 at 18:12
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