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C# Error: Parent does not contain a constructor that takes 0 arguments
...ct the situation, you need to add an explicit call:
public Child(int i) : base(i)
{
Console.WriteLine("child");
}
Or, you can just add a parameterless parent constructor:
protected Parent() { }
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Difference between shadowing and overriding in C#?
...shadow
Console.WriteLine(((A)clB).Bar()); // output 1
Suppose you have a base class and you use the base class in all your code instead of the inherited classes, and you use shadow, it will return the values the base class returns instead of following the inheritance tree of the real type of the o...
Proper stack and heap usage in C++?
...There is no absolute divide between data on the stack and data on the heap based on how you declare it. For example:
std::vector<int> v(10);
In the body of a function, that declares a vector (dynamic array) of ten integers on the stack. But the storage managed by the vector is not on the st...
Configuring diff tool with .gitconfig
...cmd = "diffmerge --merge --result=\"$MERGED\" \"$LOCAL\" \"$(if test -f \"$BASE\"; then echo \"$BASE\"; else echo \"$LOCAL\"; fi)\" \"$REMOTE\""
trustExitCode = false
[diff]
tool = diffmerge
[difftool "diffmerge"]
cmd = diffmerge \"$LOCAL\" \"$REMOTE\"
So, you see, you're d...
Why is HttpClient BaseAddress not working?
Consider the following code, where the BaseAddress defines a partial URI path.
4 Answers
...
performSelector may cause a leak because its selector is unknown
...uments these methods as "inherently unsafe"
The idea of sending messages based on a named selector is not, however, an "inherently unsafe" feature. This idea has been used successfully for a long time in Objective-C as well as many other programming languages.
1 All Objective-C methods have two...
How to dynamically change header based on AngularJS partial view?
...arJS partial views, and I want to update the page title and h1 header tags based on the included view. These are out of scope of the partial view controllers though, and so I can't figure out how to bind them to data set in the controllers.
...
How can I get PHPUnit MockObjects to return different values based on a parameter?
...
Do whatever processing you want in the callback() and return the result based on your $args as appropriate.
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How to detect internet speed in JavaScript?
...e.end - measure.start;
return measure;
}
/**
* Requires that we pass a base url to the worker
* The worker will measure the download time needed to get
* a ~0KB and a 100KB.
* It will return a string that serializes this informations as
* pipe separated values
*/
onmessage = function(e) {
...
Why should I avoid std::enable_if in function signatures
...in a detail namespace or in a helper class) that receives a dummy argument based on the same compile-time condition that you use in the enable_if.
template<typename T>
T fun(T arg)
{
return detail::fun(arg, typename some_template_trait<T>::type() );
}
namespace detail {
temp...