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现实版《道士下山》：道长老梁的四面人生 - 轻松一刻 - 清泛网 - 专注C/C++...
...前已经4皇冠；在“知乎”上，他解答了120个道教的相关问题，获得了7000个赞同；他还是道教题材的玄幻小说《返真》的作者，起点中文网A级签约作家……
在现实生活中，在金仙观里，却丝毫看不出他的“另类”，只是普通的...
Java Programming - Where should SQL statements be stored? [closed]
...k-in in the java world is interesting.
I hope you haven't paid $50000 pr CPU for Oracle Enterprise, and then only used the least common denominator in order to switch to Mysql any minute. As any good DBA will tell you, there are subtle differences between the different big name databases, especial...
What integer hash function are good that accepts an integer hash key?
... input results in a different output). The algorithm is fast except if the CPU doesn't have a built-in integer multiplication unit. C code, assuming int is 32 bit (for Java, replace >> with >>> and remove unsigned):
unsigned int hash(unsigned int x) {
x = ((x >> 16) ^ x) * ...
Python: split a list based on a condition?
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IMHO, if you know a way of doing it with less cpu usage (and thus less power drain), there is no reason not to use it.
– winden
Jun 4 '09 at 19:46
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Difference between malloc and calloc?
... do some tricks to speed it up. I know that FreeBSD, when it gets any idle CPU time, uses that to run a simple process that just goes around and zeroes out deallocated blocks of memory, and marks blocks thus processes with a flag. So when you do calloc, it first tries to find one of such pre-zeroed ...
ListCtrl 重绘（Custom Draw） - C/C++ - 清泛网 - 专注C/C++及内核技术
... DLL的版本必须至少是4.71。但随着IE4 的发布，这已经不是问题了。(IE会夹带着这个DLL一起发布)
Custom Draw 基础
我将会尽我所能把Custom Draw的处理描述清楚，而不是简单的引用MSDN的文档。这些例子都需要你的程序有一个ListCtrl在...
How do I detect unsigned integer multiply overflow?
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Some compilers provide access to the integer overflow flag in the CPU which you could then test but this isn't standard.
You could also test for the possibility of overflow before you perform the multiplication:
if ( b > ULONG_MAX / a ) // a * b would overflow
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What is the best algorithm for overriding GetHashCode?
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Incidentally, 31 is a shift and subtract on the CPU, which is exceedingly fast.
– Chui Tey
Aug 22 '13 at 23:14
4
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In-Place Radix Sort
...aiive representation. Addressing becomes more complex, but the ALU of your CPU has lots of time to spend during all the cache-misses anyway.
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What are the differences between json and simplejson Python modules?
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On my Win7 PC (i7 CPU), json (CPython 3.5.0) is 68%|45% faster on simple|complex dumps and 35%|17% on simple|complex loads w.r.t. simplejson v3.8.0 with C speedups using your benchmark code. Therefore, I would not use simplejson anymore with t...