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C++ Lock-free Hazard Pointer（冒险指针） - C/C++ - 清泛网 - 专注C/C++及内核技术
...
++cnt_;
return this;
}
void Deref() {
if (--cnt_ == 0) {
delete this;
}
}
private:
std::unique_ptr<T> ptr_;
std::atomic_uint32_t cnt_;
};
仔细观察可以发现：
每一次的读取操作对应引用计数中增加的数值 1；
当所有的...
Difference between Destroy and Delete
...
answered Mar 31 '14 at 9:03
user740584user740584
...
What kind of leaks does automatic reference counting in Objective-C not prevent or minimize?
...e-C mailing list, where he lists many advantages of ARC over Objective-C 2.0 garbage collection. I've run into several of the GC issues he describes.
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Sort an Array by keys based on another Array?
...dress'] = '123 fake st';
$customer['name'] = 'Tim';
$customer['dob'] = '12/08/1986';
$customer['dontSortMe'] = 'this value doesnt need to be sorted';
$properOrderedArray = array_merge(array_flip(array('name', 'dob', 'address')), $customer);
//Or:
$properOrderedArray = array_replace(array_flip(array...
Are multiple `.gitignore`s frowned on?
...
answered Jul 22 '10 at 9:01
Jakub NarębskiJakub Narębski
254k5858 gold badges205205 silver badges227227 bronze badges
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How to convert std::string to LPCWSTR in C++ (Unicode)
... int slength = (int)s.length() + 1;
len = MultiByteToWideChar(CP_ACP, 0, s.c_str(), slength, 0, 0);
wchar_t* buf = new wchar_t[len];
MultiByteToWideChar(CP_ACP, 0, s.c_str(), slength, buf, len);
std::wstring r(buf);
delete[] buf;
return r;
}
std::wstring stemp = s2ws(myStr...
How do I script a “yes” response for installing programs?
...s"?
– Nathan Basanese
Dec 9 '15 at 10:16
1
Be careful with yes as it is known to max out the CPU....
Convert list to tuple in Python
...
30
You might have done something like this:
>>> tuple = 45, 34 # You used `tuple` as a v...
UIScrollView Scrollable Content Size Ambiguity
...tentView);
In this contentView, set top, bottom, left and right margins to 0 (of course from the scrollView which is the superView); Set also align center horizontally and vertically;
Finished.
Now you can add all your views in that contentView, and the contentSize of the scrollView will be autom...
Create a hexadecimal colour based on a string with JavaScript
...ingle word) and from that somehow generate a hexadecimal value between #000000 and #FFFFFF , so I can use it as a colour for a HTML element.
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