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Why does the use of 'new' cause memory leaks?
...etwork connections, or whatever you fancy.
This automatic_pointer thing already exists in various forms, I've just provided it to give an example. A very similar class exists in the standard library called std::unique_ptr.
There's also an old one (pre-C++11) named auto_ptr but it's now deprecated ...
What is the correct way to create a single-instance WPF application?
...quire a dependency on the Microsoft.VisualBasic assembly. If my project already had a dependency on that assembly, I would probably advocate using the approach shown in another answer. But as it is, I do not use the Microsoft.VisualBasic assembly, and I'd rather not add an unnecessary dependency t...
What does the Java assert keyword do, and when should it be used?
...int id) {
Foo result = null;
if (id > 50) {
result = fooService.read(id);
} else {
result = new Foo(id);
}
assert result != null;
return result;
}
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How do I make an HTTP request in Swift?
I read The Programming Language Swift by Apple in iBooks, but cannot figure out how to make an HTTP request (something like cURL) in Swift. Do I need to import Obj-C classes or do I just need to import default libraries? Or is it not possible to make an HTTP request based on native Swift code?
...
What is a stack trace, and how can I use it to debug my application errors?
... in the application. Let's have a look at the stack trace:
Exception in thread "main" java.lang.NullPointerException
at com.example.myproject.Book.getTitle(Book.java:16)
at com.example.myproject.Author.getBookTitles(Author.java:25)
at com.example.myproject.Bootstrap.main(Boo...
OnChange event handler for radio button (INPUT type=“radio”) doesn't work as one value
...re set up on each of the radio buttons with the name attribute myRadios to read the variable prev which holds the currently selected radio. A comparison is done within each click handler to decide if the clicked radio is the same as the one stored in prev and if not then the currently clicked radio ...
Is there a way to detect if an image is blurry?
...nal image times that of the blurring filter. Thus, if the original image already had predominately low frequencies, how can you tell whether it was blurred?
– Chris A.
Oct 14 '11 at 14:16
...
Why does calling a method in my derived class call the base class method?
...
Please read about polymorphism in C#: Polymorphism (C# Programming Guide)
This is an example from there:
When the new keyword is used, the new class members are called instead
of the base class members that have been replace...
var functionName = function() {} vs function functionName() {}
...hose issues any more. (But as of this writing, sadly, IE8 remains in widespread use, and so using NFEs with code for the web in general is still problematic.)
Accessor Function Initializer (ES5+)
Sometimes functions can sneak in largely unnoticed; that's the case with accessor functions. Here's an...
Timer function to provide time in nano seconds using C++
...drivers may result in these routines returning
different values as the thread moves from one processor to another...
However this StackOverflow answer https://stackoverflow.com/a/4588605/34329 states that QPC should work fine on any MS OS after Win XP service pack 2.
This article shows that Win...