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What is the purpose of the “final” keyword in C++11 for functions?
...For example:
struct Base1 final { };
struct Derived1 : Base1 { }; // ill-formed because the class Base1
// has been marked final
It is also used to mark a virtual function so as to prevent it from being overridden in the derived classes:
struct Base2 {
virtual...
difference between offsetHeight and clientHeight
... differ extremely for elements that are not visible like for example a <FORM> where OffsetHeight may be the real size of the FORM while ClientHeight may be zero.
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How to trim whitespace from a Bash variable?
...
To generalize the solution to handle all forms of whitespace, replace the space character in the tr and sed commands with [[:space:]]. Note that the sed approach will only work on single-line input. For approaches that do work with multi-line input and also use bash...
What's the difference between compiled and interpreted language?
...r program, called "the interpreter", then examines "something else" and performs whatever actions are called for. Depending on the language and its implementation, there are a variety of forms of "something else". From more popular to less popular, "something else" might be
Binary instructions ...
What are the differences between Chosen and Select2?
... history and frequency along with a ton of other useful stats to make an informed decision about which project may "maintained" vs. "undergoing active development."
– cfx
May 18 '14 at 6:19
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test a file upload using rspec - rails
...esponse.should be_success
end
In case you were expecting the file in the form of params['upload']['datafile']
it "can upload a license" do
file = Hash.new
file['datafile'] = @file
post :uploadLicense, :upload => file
response.should be_success
end
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Naming conventions for abstract classes
...eBase , System.Configuration.ConfigurationValidatorBase , System.Windows.Forms.ButtonBase , and, of course, System.Collections.CollectionBase .
...
What does “coalgebra” mean in the context of programming?
...= mappend (a, b)
op (Right ()) = mempty
We can actually use this transformation repeatedly to combine all the τⁿ → τ functions into a single one, for any algebra. (In fact, we can do this for any number of functions a → τ, b → τ and so on for any a, b,….)
This lets us talk about ...
How to print a date in a regular format?
... the str() function. It is most of the time the most common human readable format and is used to ease display. So str(datetime.datetime(2008, 11, 22, 19, 53, 42)) gives you '2008-11-22 19:53:42'.
The alternative representation that is used to represent the object nature (as a data). It can be get u...
Obfuscated C Code Contest 2006. Please explain sykes2.c
... 2-3 3
1 0-1 7
0 6-7 4
0 4-5 4
0 2-3 3
0 0-1 7
or in tabular form
00005577
11775577
11775577
11665577
22773377
22773377
44443377
Note that the author used the null terminator for the first two table entries (sneaky!).
This is designed after a seven-segment display, with 7s as blank...