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Difference between a Structure and a Union
...good example to give the difference between a struct and a union ?
Basically I know that struct uses all the memory of its member and union uses the largest members memory space. Is there any other OS level difference?
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Passing a method as a parameter in Ruby
...ightedknn(data, vec1, k = 5, weightf = gaussian)
...
weight = weightf.call(dist)
...
end
Just note that you can't set a default argument in a block declaration like that. So you need to use a splat and setup the default in the proc code itself.
Or, depending on your scope of all this, it...
RRSet of type CNAME with DNS name foo.com. is not permitted at apex in zone bar.com
...
As per RFC1912 section 2.4:
A CNAME record is not allowed to coexist with any other data. In
other words, if suzy.podunk.xx is an alias for sue.podunk.xx, you
can't also have an MX record for suzy.podunk.edu, or an A record, or
even a TXT record. Especially do not try t...
How to match, but not capture, part of a regex?
...avaScript, yay! would be nice to have a JS friendly method, but not bad at all, +0.5 (rounding up ;D )
– GiantCowFilms
Mar 27 '15 at 2:37
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JavaScript closures vs. anonymous functions
...ing what is a closure in JS and what isn't. We just want to make sure we really understand it correctly.
12 Answers
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How to use '-prune' option of 'find' in sh?
... test (up to and including -prune) will return false for the stuff you actually want (ie: the stuff you don't want to prune out).
Here's an example:
find . -name .snapshot -prune -o -name '*.foo' -print
This will find the "*.foo" files that aren't under ".snapshot" directories. In this example, -na...
Check variable equality against a list of values
...an use the includes method. It's the cleanest way I've seen. (Supported by all major browsers, except IE (Polyfill is in the link)
if([1,3,12].includes(foo)) {
// ...
}
share
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improve this an...
Why does an overridden function in the derived class hide other overloads of the base class?
...e word "hide"), you already know what is going on here. The phenomenon is called "name hiding". For some reason, every time someone asks a question about why name hiding happens, people who respond either say that this called "name hiding" and explain how it works (which you probably already know), ...
How to POST raw whole JSON in the body of a Retrofit request?
...String foo, String bar) {
this.foo = foo;
this.bar = bar;
}
}
Calling with:
FooResponse = foo.postJson(new FooRequest("kit", "kat"));
Will yield the following body:
{"foo":"kit","bar":"kat"}
The Gson docs have much more on how object serialization works.
Now, if you really really ...
General guidelines to avoid memory leaks in C++ [closed]
... programs? How do I figure out who should free memory that has been dynamically allocated?
29 Answers
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