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Difference between 'struct' and 'typedef struct' in C++?
...struct Foo x;
Any time you want to refer to a Foo, you'd always have to call it a struct Foo. This gets annoying fast, so you can add a typedef:
struct Foo { ... };
typedef struct Foo Foo;
Now struct Foo (in the tag namespace) and just plain Foo (in the ordinary identifier namespace) both refe...
What are Transient and Volatile Modifiers?
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Actually, the JLS permits static and transient to be used together. The problem is it makes little sense, because typical serialization mechanisms don't persist statics anyway.
– Stephen C
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ASP.NET Web API Authentication
...rom a client application while using the ASP.NET Web API . I have watched all the videos on the site and also read this forum post .
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Why is there no GIL in the Java Virtual Machine? Why does Python need one so bad?
I'm hoping someone can provide some insight as to what's fundamentally different about the Java Virtual Machine that allows it to implement threads nicely without the need for a Global Interpreter Lock (GIL), while Python necessitates such an evil.
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Java Generics (Wildcards)
...f bounded wildcards. An unbounded wildcard looks like <?>, and basically means <? extends Object>. It loosely means the generic can be any type. A bounded wildcard (<? extends T> or <? super T>) places a restriction on the type by saying that it either has to extend a spec...
How to handle AccessViolationException
...ing a COM object (MODI) from within my .net application. The method I am calling throws a System.AccessViolationException, which is intercepted by Visual Studio. The odd thing is that I have wrapped my call in a try catch, which has handlers for AccessViolationException, COMException and everythin...
C/C++ macro string concatenation
...rings you can just do:
#define STR3 STR1 STR2
The preprocessor automatically concatenates adjacent strings.
EDIT:
As noted below, it's not the preprocessor but the compiler that does the concatenation.
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How can I save an image to the camera roll?
...ng 4.3) and am not sure how to save an image to the device's camera roll. All that I have done so far is set up an IBAction for the button to save the image. What library method or function can I use to save an image to the user's camera roll?
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Android: What's the difference between Activity.runOnUiThread and View.post?
...ivity.
In both cases, if not on UI thread, Handler#post(Runnable) will be called behind the scenes.
As CommonsWare mentioned in the comment, there is a difference between the two - when called on Ui thread, Activity#runOnUiThread will call the run method directly, while View#post will post the runna...
How do I squash two non-consecutive commits?
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Initially, I read it as "rebase D onto A, squash D into A, then rebase B onto DA". It's not clear from the answer that this can be done by reordering lines in a text editor.
– Victor Sergienko
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