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What is a void pointer in C++? [duplicate]
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A void* does not mean anything. It is a pointer, but the type that it points to is not known.
It's not that it can return "anything". A function that returns a void* generally is doing one of the following:
It is dealing in unformatted memory. This is what operato...
How to wait for 2 seconds?
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--Example 2
DECLARE @Delay2 DATETIME
SELECT @Delay2 = dateadd(SECOND, 2, convert(DATETIME, 0))
WAITFOR DELAY @Delay2
A note on waiting for TIME vs DELAY:
Have you ever noticed that if you accidentally pass WAITFOR TIME a date that already passed, even by just a second, it will never return? Che...
How to change the font on the TextView?
...en of information. To support such use of
typography, Ice Cream Sandwich introduced a new type family named
Roboto, created specifically for the requirements of UI and
high-resolution screens.
The current TextView framework offers Roboto in thin, light, regular
and bold weights, along w...
How do I get an animated gif to work in WPF?
...bool _isInitialized;
private GifBitmapDecoder _gifDecoder;
private Int32Animation _animation;
public int FrameIndex
{
get { return (int)GetValue(FrameIndexProperty); }
set { SetValue(FrameIndexProperty, value); }
}
private void Initialize()
{
_gi...
Java recursive Fibonacci sequence
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There are 2 issues with your code:
The result is stored in int which can handle only a first 48 fibonacci numbers, after this the integer fill minus bit and result is wrong.
But you never can run fibonacci(50).
The code
fibonacci(n - 1) + fibonacci(n - 2)
is very wrong.
The problem i...
How to split a sequence into two pieces by predicate?
How do I split a sequence into two lists by a predicate?
6 Answers
6
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How to make an alert dialog fill 90% of screen size?
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Try wrapping your custom dialog layout into RelativeLayout instead of LinearLayout. That worked for me.
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How to get all subsets of a set? (powerset)
... is 2 ** len(A), so that could clearly be seen in the for loop.
I need to convert the input (ideally a set) into a list because by a set is a data structure of unique unordered elements, and the order will be crucial to generate the subsets.
selector is key in this algorithm. Note that selector ha...
What is the “right” JSON date format?
...is a non-standard hack/extension.
I would use a format that can be easily converted to a Date object in JavaScript, i.e. one that can be passed to new Date(...). The easiest and probably most portable format is the timestamp containing milliseconds since 1970.
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Does C# have extension properties?
...r extension method string GetData(this MyClass instance) as it stores data into the class.
I hope that C#7 will provide a full featured extension everything (properties and fields), however on that point, only time will tell.
And feel free to contribute as the software of tomorrow will come from ...