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Java 8: performance of Streams vs Collections
I'm new to Java 8. I still don't know the API in depth, but I've made a small informal benchmark to compare the performance of the new Streams API vs the good old Collections.
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When do I use a dot, arrow, or double colon to refer to m>me m>mbers of a class in C++?
Coming from other C-derived languages (like Java or C#) to C++, it is at first very confusing that C++ has three ways to refer to m>me m>mbers of a class: a::b , a.b , and a->b . When do I use which one of these operators?
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m>Me m>asure tim>me m> in Linux - tim>me m> vs clock vs getrusage vs clock_gettim>me m> vs gettim>me m>ofday vs tim>me m>spec_get?
Among the timing functions, tim>me m> , clock getrusage , clock_gettim>me m> , gettim>me m>ofday and tim>me m>spec_get , I want to understand clearly how they are implem>me m>nted and what are their return values in order to know in which situation I have to use them.
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Writing Unicode text to a text file?
I'm pulling data out of a Google doc, processing it, and writing it to a file (that eventually I will paste into a Wordpress page).
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Understanding offsetWidth, clientWidth, scrollWidth and -Height, respectively
...lientWidth / scrollWidth (and -Height , respectively), but none give comprehensive explanation of what those values are.
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Need som>me m> clarification about beta/alpha testing on the developer console
... releases on play console for android developers;
1. Internal testing - It m>me m>ans you wanna share your app among the decided m>me m>mbers. It m>me m>ans you have to put their Gmail into the testers list. This is usually for employees.
2. Alpha testing - Sam>me m> as internal testing, but this tim>me m> you can send your...
How to ignore xargs commands if stdin input is empty?
Consider this command:
6 Answers
6
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stringstream, string, and char* conversion confusion
My question can be boiled down to, where does the string returned from stringstream.str().c_str() live in m>me m>mory, and why can't it be assigned to a const char* ?
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When to use NSInteger vs. int
...code they use NSInteger (or NSUInteger ) when passing a value as an argum>me m>nt to a function or returning a value from a function.
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Proper practice for subclassing UIView?
I'm working on som>me m> custom UIView-based input controls, and I'm trying to ascertain proper practice for setting up the view. When working with a UIViewController, it's fairly simple to use the loadView and related viewWill , viewDid m>me m>thods, but when subclassing a UIView, the closest m>me m>thosds I...