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Should we pass a shared_ptr by reference or by value?
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This question has been discussed and answered by Scott, Andrei and Herb during Ask Us Anything session at C++ and Beyond 2011. Watch from 4:34 on shared_ptr performance and correctness.
Shortly, there is no reason to pass by value, unless the goal is to sha...
What are the advantages of using nullptr?
...n write this:
template<typename T>
void f(T *ptr); //function to handle non-nullptr argument
void f(nullptr_t); //an overload to handle nullptr argument!!!
1. In C++, NULL is defined as #define NULL 0, so it is basically int, that is why f(int) is called.
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Search in all files in a project in Sublime Text 3
...tabs.
The keyboard shortcut is Ctrl⇧+F on non-Mac (regular) keyboards,
and ⌘⇧+F on a Mac.
You'll be presented with three boxes: Find, Where and Replace. It's a regular Find/Find-replace search where Where specifies a file or directory to search. I for example often use a file name or . for...
How to convert jsonString to JSONObject in Java
... @Gubatron Thanks dude you are right i have just downloaded it and make jar so now its working fine.
– Mr. Sajid Shaikh
Mar 10 '11 at 5:45
3
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Do Java arrays have a maximum size?
...es makes no sense unless we are willing to downvote answers that are plain and simply wrong. Does the difference of five bytes actually matter in the real world, NO, of course not. But it concerns me that people are willing to give an answer "authoritatively" without even trying it to see if it rea...
Continuously read from STDOUT of external process in Ruby
I want to run blender from the command line through a ruby script, which will then process the output given by blender line by line to update a progress bar in a GUI. It's not really important that blender is the external process whose stdout I need to read.
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EF LINQ include multiple and nested entities
... bool operator other list
Update
To learn more, download LinqPad and look through the samples.
I think it is the quickest way to get familiar with Linq and Lambda.
As a start - the difference between Select and Include is that that with a Select you decide what you want to return (aka pro...
Parsing query strings on Android
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Since Android M things have got more complicated. The answer of android.net.URI.getQueryParameter() has a bug which breaks spaces before JellyBean.
Apache URLEncodedUtils.parse() worked, but was deprecated in L, and removed in M.
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Easy way to write contents of a Java InputStream to an OutputStream
... but I suspect I'm just missing something which would make my life easier (and the code clearer).
23 Answers
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Does a valid XML file require an XML declaration?
...ere it says it "should" be used -- which means it is recommended, but not mandatory. In XML 1.1, however, the declaration is mandatory. See section 2.8 of the XML 1.1 Recommendation, where it says "MUST" be used. It even goes on to state that if the declaration is absent, that automatically implies ...