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Get underlying NSData from UIImage
...ct with init(data: originalData), that originalData will be converted into raw data in some kind of internal format. These data can be retrieved later with
let rawData = myImage.cgImage?.dataProvider?.data as Data?
However because the rawData is raw, it is going to be even larger than when using ...
Bitwise operation and usage
...n.
As a concrete example, imagine some one gives you a file that contains raw data that was captured directly by telecommunication hardware. In this case, in order to find the frames, you will need to read the raw bytes in the file and try to find some kind of synchronization words, by scanning th...
How do I pass a unique_ptr argument to a constructor or a function?
...bject pointed to, or by what means that ownership is managed, so passing a raw pointer is both perfectly safe, and the most flexible form, since regardless of ownership a client can always produce a raw pointer (either by calling the get method or from the address-of operator &).
For instance t...
Should sorting logic be placed in the model, the view, or the controller? [closed]
...everything but the sorting logic to a single third model. docs.google.com/drawings/d/…
– rightfold
Dec 11 '15 at 14:03
...
Laravel Eloquent Sum of relation's column
...y AS paid_sum' => function ($query) {
$query->select(DB::raw("SUM(amount_total) as paidsum"))->where('status', 'paid');
}
]);
it returns
"paid_sum_count" => "320.00"
in Deals attribute.
This it now the sum which i wanted to get not the count.
...
How to break out of a loop from inside a switch?
...r.
Otherwise, stop looping forever.
End.
Code
while True:
choice = raw_input('What do you want? ')
if choice == 'restart':
continue
else:
break
print 'Break!'
Versus:
Initialize the user's choice.
Loop while the user's choice is the word 'restart'.
Ask the user...
Fastest way to convert Image to Byte array
...about CPU resources, pick a format which doesn't bother compressing - just raw ARGB pixels, for example. But of course that will lead to a larger byte array.
Note that if you pick a format which does include compression, there's no point in then compressing the byte array afterwards - it's almost c...
std::shared_ptr of this
...g. Usually, when you are accepting new entities, you should usually accept raw pointers. Smart pointer can have their own meaning for swapping children between parents, but for general usage, you should accept raw pointers.
...
boost Composite keys - C/C++ - 清泛网 - 专注C/C++及内核技术
...call chained pointers. Such a chained pointer is defined by induction as a raw or smart pointer or iterator to the actual element, to a reference wrapper of the element or to another chained pointer; that is, chained pointers are arbitrary compositions of pointer-like types ultimately dereferencing ...
Type erasure techniques
...
I would also consider (similar to void*) the use of "raw storage": char buffer[N].
In C++0x you have std::aligned_storage<Size,Align>::type for this.
You can store anything you want in there, as long as it's small enough and you deal with the alignment properly.
...