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How can I use interface as a C# generic type constraint?
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The closest you can do (except for your base-interface approach) is "where T : class", meaning reference-type. There is no syntax to mean "any interface".
This ("where T : class") is used, for example, in WCF to limit clients to service contracts (interfaces).
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How to suppress “unused parameter” warnings in C?
... parameters. (Note that this works on any compiler.)
For example:
void f(int x) {
UNUSED(x);
...
}
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Change text color of one word in a TextView
...first + next, BufferType.SPANNABLE);
Spannable s = (Spannable)t.getText();
int start = first.length();
int end = start + next.length();
s.setSpan(new ForegroundColorSpan(0xFFFF0000), start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
you have to use spannable this will also allows you to increase so...
Function pointers, Closures, and Lambda
I am just now learning about function pointers and, as I was reading the K&R chapter on the subject, the first thing that hit me was, "Hey, this is kinda like a closure." I knew this assumption is fundamentally wrong somehow and after a search online I didn't find really any analysis of this compari...
Why is it impossible to override a getter-only property and add a setter? [closed]
... { return _currentBar; }
}
Since Bar cannot be set as per the BaseClass interface, BarProvider assumes that caching is a safe thing to do - Since Bar cannot be modified. But if set was possible in a derivation, this class could be serving stale values if someone modified the _source object's Bar ...
ng-app vs. data-ng-app, what is the difference?
...follows:
Strip x- and data- from the front of the element/attributes. Convert the :, -, or _-delimited name to camelCase. Here are some equivalent
examples of elements that match ngBind:
based on above statement below all are valid directives
1. ng-bind
2. ng:bind
3. ng_bind
4. data-ng...
How to fix error “Updating Maven Project”. Unsupported IClasspathEntry kind=4?
...question in the package explorer pane, and then choosing 'Configure'-> 'Convert to Maven Project')
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App Inventor 2 扩展 · App Inventor 2 中文网
...reate extension components
3.1 Practice creating a sample component
3.2 Convert your sample component to an extension
3.2.2 Test your extension
3.3 Details on creating extensions
3.3.1 When you start to build
3.3.2 Requesting permissions for the extensions you define
3.2.3 Using external li...
How to count the number of set bits in a 32-bit integer?
..., you may need to adjust it to work for a particular language (e.g. using uint32_t for C++ and >>> in Java):
int numberOfSetBits(uint32_t i)
{
// Java: use int, and use >>> instead of >>
// C or C++: use uint32_t
i = i - ((i >> 1) & 0x55555555);
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When would you use delegates in C#? [closed]
...here takes a delegate as a parameter. Since delegates are just function pointers when you pass the method name into the .Where(delegate) that becomes the delegate. Since inMyFamily returns a boolean type it is actually considered a predicate. Predicates are just delegates that return booleans.
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