大约有 5,100 项符合查询结果（耗时：0.0231秒） [XML]
Undefined behavior and sequence points
...any explicit definition of behavior.
3 : permissible undefined behavior ranges from ignoring the situation completely with unpredictable results, to behaving during translation or program execution in a documented manner characteristic of the environment (with or with-
out the issuance of a diagn...
What is move semantics?
...op and discuss a simplified version of unique_ptr. First, we encapsulate a raw pointer and overload the operators -> and *, so our class feels like a pointer:
template<typename T>
class unique_ptr
{
T* ptr;
public:
T* operator->() const
{
return ptr;
}
T&a...
Understanding the Use of ColorMatrix and ColorMatrixColorFilter to Modify a Drawable's Hue
...
The possbile value range for brightness is wrong. It should be between -255 and 255 or converted afterwards.
– woodii
Jan 2 at 16:03
...
How well is Unicode supported in C++11?
... cannot be converted to UTF-8 because UTF-8 cannot encode any value in the range 0xD800-0xDFFF.
Still on the UCS-2 front, there is no way to read from an UTF-16 byte stream into an UTF-16 string with these facets. If you have a sequence of UTF-16 bytes you can't deserialize it into a string of char...
git merge: apply changes to code that moved to a different file
...the -1 option. The normal mode of operation for format-patch is a revision range, like origin/master..master, so you can easily prepare a patch series.
– Cascabel
Aug 16 '10 at 17:31
...
Is there a way to detect if an image is blurry?
...ropy (Krotkov86)
FM = entropy(Image);
case 'HISR' % Histogram range (Firestone91)
FM = max(Image(:))-min(Image(:));
case 'LAPE' % Energy of laplacian (Subbarao92a)
LAP = fspecial('laplacian');
FM = imfilter(Image, LAP, 'replicate', 'conv');
FM = mea...
How do you fix a bad merge, and replay your good commits onto a fixed merge?
...rting from the root commit. If
instead you just want to rewrite the commit range HEAD~5..HEAD, then you can
pass that as an additional argument to filter-branch, as pointed out in
this answer:
git filter-branch --index-filter \
'git rm --cached --ignore-unmatch <file>' HEAD~5..HEAD
Again, a...
What does “dereferencing” a pointer mean?
...at you would need a variable called x, and the code asks the compiler to arrange where it should be stored, ensuring the address will be available via &x.
Dereferencing and accessing a structure data member
In C, if you have a variable that is a pointer to a structure with data members, you ca...
What Haskell representation is recommended for 2D, unboxed pixel arrays with millions of pixels?
...and I don't understand repa code well. From what I see it has very limited range of ready to use matrix and array algorithms written on top of it, but at least it is possible to express important algorithms by the means of the library. For example, there are already routines for matrix multiplicatio...
What is the scope of variables in JavaScript?
...@RobG It is highly rated because it is useful and comprehensible to a wide range of programmers, minor catachresis notwithstanding. The link you have posted, while useful to some professionals, is incomprehensible to most people writing Javascript today. Feel free to fix any nomenclature issues by e...