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How to determine if a type implements a specific generic interface type
...also be done with the following LINQ query:
bool isBar = foo.GetType().GetInterfaces().Any(x =>
x.IsGenericType &&
x.GetGenericTypeDefinition() == typeof(IBar<>));
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imp...
How to get an enum which is created in attrs.xml in code
...6 in your example
if (a.hasValue(R.styleable.IconView_icon)) {
int value = a.getInt(R.styleable.IconView_icon, 0));
}
a.recycle();
}
If you want the value into an enum you would need to either map the value into a Java enum yourself, e.g.:
private enum Format {
enum_name_...
Why does sizeof(x++) not increment x?
...ype. The size is determined from the type of the operand. The result is an integer. If the type of the operand is a variable length array type, the operand is evaluated; otherwise, the operand is not evaluated and the result is an integer constant.
...
How to send password securely over HTTP?
...ser:password@your.domain.com/login (Chrome, for example will automatically convert it into Authorization header)
IMPORTANT:
As pointed out by @zaph in his comment below, sending sensitive info as GET query is not good idea as it will most likely end up in server logs.
...
SQL ON DELETE CASCADE, Which Way Does the Deletion Occur?
...have CourseID on table Category?
Maybe you should restructure your schema into this,
CREATE TABLE Categories
(
Code CHAR(4) NOT NULL PRIMARY KEY,
CategoryName VARCHAR(63) NOT NULL UNIQUE
);
CREATE TABLE Courses
(
CourseID INT NOT NULL PRIMARY KEY,
BookID INT NOT NULL,
CatCode CHAR(4) ...
Check whether number is even or odd
...
You can use the modulus operator, but that can be slow. If it's an integer, you can do:
if ( (x & 1) == 0 ) { even... } else { odd... }
This is because the low bit will always be set on an odd number.
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Shorthand way for assigning a single field in a record, while copying the rest of the fields?
... updating record fields. In GHCi you can do --
> data Foo = Foo { a :: Int, b :: Int, c :: String } -- define a Foo
> let foo = Foo { a = 1, b = 2, c = "Hello" } -- create a Foo
> let updateFoo x = x { c = "Goodbye" } -- function to update Foos
> updateFoo foo ...
How does '20 seconds' work in Scala?
...0.seconds()*.
Second, an "implicit conversion" is applied. Since 20 is an Int and Int has no seconds method, the compiler searches for an implicit conversion that takes an Int and returns something that does have a seconds method, with the search constrained by the scope of your method call.
You h...
Difference between Math.Floor() and Math.Truncate()
... Here's the reference.
For completeness, Math.Round rounds to the nearest integer. If the number is exactly midway between two integers, then it rounds towards the even one. Reference.
See also: Pax Diablo's answer. Highly recommended!
...
Do you need to dispose of objects and set them to null?
...s Dispose() needs to implement any logic? Does it have to do something? Or internally when Dispose() is called signals GC that is good to go? I checked the source code for the TextWriter for example and Dispose has no implementation.
– Mihail Georgescu
Jan 27...