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Accessing member of base class
...r in other languages. You need to specify the super keyword in order to avoid confusion between a specialised function and the base class function. For example, if you called move() or this.move() you would be dealing with the specialised Snake or Horse function, so using super.move() explicitly cal...
Why is conversion from string constant to 'char*' valid in C but invalid in C++
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Up through C++03, your first example was valid, but used a deprecated implicit conversion--a string literal should be treated as being of type char const *, since you can't modify its contents (without causing undefined behavior).
As of C++11, the implicit conversion ...
How to merge a list of lists with same type of items to a single list of items?
...(which is an IEnumerable of TResults) to an IEnumerable of TResults is the identity function (x => x). This is really just a special case where you don't need the extra step of turning each TSource into a list, because it's already a list.
– Sean
May 8 '15 a...
C++ where to initialize static const
...nst int foo::j = 4;
(*) According to the standards you must define i outside of the class definition (like j is) if it is used in code other than just integral constant expressions. See David's comment below for details.
s...
Boolean vs tinyint(1) for boolean values in MySQL
...esn't answer the question. While it's true that tinyint(1) is functionally identical to bool, the OP asked what is best to use. The answer by @dj_segfault does a proper job explaining why bool should be preferred over tinyint(1) when storing a boolean value.
– Kyle Morgan
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How to send cookies in a post request with the Python Requests library?
... Is this code supposed to place a cookie in my browser? I tried it and it didn't work for me.
– Chris Nielsen
Aug 8 '17 at 20:47
17
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What is the difference between “Form Controls” and “ActiveX Control” in Excel 2010?
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Google is full of information on this. As Hans Passant said, Form controls are built in to Excel whereas ActiveX controls are loaded separately.
Generally you'll use Forms controls, they're simpler. ActiveX controls allow for more flexible design and should be used when the job j...
Collection that allows only unique items in .NET?
...ooking for. From MSDN (emphasis added):
The HashSet<T> class provides high-performance set operations. A set is a collection that contains no duplicate elements, and whose elements are in no particular order.
Note that the HashSet<T>.Add(T item) method returns a bool -- true if the...
Should ol/ul be inside or outside?
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The short answer is that ol elements are not legally allowed inside p elements.
To see why, let's go to the spec! If you can get comfortable with the HTML spec, it will answer many of your questions and curiosities. You want to know if an ol can live inside a p. So…
4.5.1 The p element...
What's the difference between `1L` and `1`?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
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