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Two-way encryption: I need to store passwords that can be retrieved
... = $this->getKeys($salt, $key);
if (!hash_equals(hash_hmac('sha512', $enc, $macKey, true), $mac)) {
return false;
}
$dec = mcrypt_decrypt($this->cipher, $cipherKey, $enc, $this->mode, $iv);
$data = $this->unpad($dec);
return $data;...
What's the “big idea” behind compojure routes?
...
answered Aug 16 '10 at 3:51
Michał MarczykMichał Marczyk
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...
Replacing a 32-bit loop counter with 64-bit introduces crazy performance deviations with _mm_popcnt_
...as of 7.0
– Dan M.
Sep 25 '18 at 11:51
@PeterCordes I don't think it's the execution unit as much as it is the schedul...
What is the best way to compute trending topics or tags?
...thanks!
– Drewness
Apr 23 '13 at 19:51
1
For anyone who would like it, I now have SQL queries to ...
What does Expression.Quote() do that Expression.Constant() can’t already do?
... Eric LippertEric Lippert
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11...
How can I efficiently select a Standard Library container in C++11?
...
51
I like Matthieu's answer, but I'm going to restate the flowchart as this:
When to NOT use std:...
When to use self over $this?
...
51
Also consider using static:: instead of ::self if youre on 5.3+. It may cause you untold headaches otherwise, see my answer below for why.
...
Move capture in lambda
...uld I do!!
– RnMss
Jan 29 '14 at 11:51
@RnMss Which feature do you mean? Generalized lambda capture?
...
What is a mixin, and why are they useful?
...
Jason BakerJason Baker
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cpuid汇编指令 - C/C++ - 清泛网 - 专注C/C++及内核技术
... Xeon处理器，其它情况则应该是Pentium II处理器或者是只有512KB高速缓存的Pentium II Xeon处理器。
有些情况下，如果从处理器签名上不能区分CPU，也可以使用Brand ID(在EBX的bit7:0返回）来区分CPU，比如Pentium III, Model 8、Pentium III Xeon,...