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C++ compiling on Windows and Linux: ifdef switch [duplicate]
...de only for one operating system and not the other. Is there a standard #ifdef that once can use?
7 Answers
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Android global variable
How can I create global variable keep remain values around the life cycle of the application regardless which activity running.
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Entity Framework 5 Updating a Record
I have been exploring different methods of editing/updating a record within Entity Framework 5 in an ASP.NET MVC3 environment, but so far none of them tick all of the boxes I need. I'll explain why.
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Correct way to quit a Qt program?
...nherits quit() which is a public slot of QCoreApplication, so there is no difference between QApplication::quit() and QCoreApplication::quit().
As we can read in the documentation of QCoreApplication::quit() it "tells the application to exit with return code 0 (success).". If you want to exit becau...
How does MongoDB sort records when no sort order is specified?
When we run a Mongo find() query without any sort order specified, what does the database internally use to sort the results?
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How do I add a class to a given element?
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If you're only targeting modern browsers:
Use element.classList.add to add a class:
element.classList.add("my-class");
And element.classList.remove to remove a class:
element.classList.remove("my-class");
If you need t...
What are “connecting characters” in Java identifiers?
...t i = Character.MIN_CODE_POINT; i <= Character.MAX_CODE_POINT; i++)
if (Character.isJavaIdentifierStart(i) && !Character.isAlphabetic(i))
System.out.print((char) i + " ");
}
prints
$ _ ¢ £ ¤ ¥ ؋ ৲ ৳ ৻ ૱ ௹ ฿ ៛ ‿ ⁀ ⁔ ₠ ₡ ₢ ₣ ₤ ₥ ₦ ₧ ...
RESTful API methods; HEAD & OPTIONS
...out the communication options available on the request/response chain identified by the Request-URI. This method allows the client to determine the options and/or requirements associated with a resource, or the capabilities of a server, without implying a resource action or initiating a resource ret...
When to use IComparable Vs. IComparer
...mparer<T> is implemented on a type that is capable of comparing two different objects while IComparable<T> is implemented on types that are able to compare themselves with other instances of the same type.
I tend to use IComparable<T> for times when I need to know how another inst...
onclick() and onblur() ordering issue
...e a few a drawbacks. Most notably I often click then drag off the button if I've misclicked, which prevents onclick being called - if the button performs a non-Pure function (delete, post etc) you might want to preserve this and go with the flag approach.
– Brizee
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