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What is the fastest integer division supporting division by zero no matter what the result is?
...
According to this link, you can just block the SIGFPE signal with sigaction() (I have not tried it myself, but I believe it should work).
This is the fastest possible approach if divide by zero errors are extremely rare: you only pay for the divisions by zero, ...
Can I list-initialize a vector of move-only type?
...ement new to initialize this array already in place of the vector's memory block?
Here's my function to initialize a vector of unique_ptr's using an argument pack:
#include <iostream>
#include <vector>
#include <make_unique.h> /// @see http://stackoverflow.com/questions/7038357/...
Timer function to provide time in nano seconds using C++
... build a clock you...". Typically timing code does not measure work which blocks a thread (but it can). And so typically your CPU won't throttle. But if you are measuring code involving sleep, mutex lock, condition_variable wait, etc, the rdtsc clock is likely to have inaccurate conversions to ot...
What Makes a Method Thread-safe? What are the rules?
...erent threads. You can do so by using anonymous methods, lambdas, iterator blocks or async methods.
Is that the case for static methods as well?
Absolutely not.
If a method is passed a reference object, does that break thread safety?
Maybe.
I've done some research, and there is a ...
How do I get Windows to go as fast as Linux for compiling C++?
... (or whatever) opens the file once and appends for hours, updates internal blocks, and so on. The value of optimizing the opening of the file would be wasted time.
The history of Windows benchmarking and optimization has been on how fast one can read or write long files. That's what gets optimize...
Why are elementwise additions much faster in separate loops than in a combined loop?
...equest can't be satisfied from already zeroed pages, the VirtualAlloc call blocks until it can zero enough to satisfy the request. By contrast, Linux just maps the zero page as copy-on-write as much as necessary, and on write, it copies the new zeroes to a fresh page before writing in the new data. ...
What is “callback hell” and how and why does RX solve it?
...our code and it gets particularly bad when you need to do loops, try-catch blocks and things like that.
For example, as far as I know, in JavaScript the only way to execute a series of asynchronous functions where one is run after the previous returns is using a recursive function. You can't use a ...
App Inventor 2 SQLite 拓展:超流行兼容主流SQL语法的迷你本地数据库引擎...
...g:hover { color: #3773f5 } .feedback-pop .feedback-img { display: inline-block; width: 24px; height: 24px; margin-bottom: 4px; background: url(/static/images/feedback.svg) 50% / 100% auto no-repeat; } 文档反馈 切换 目录 在线 客服 ...
In practice, what are the main uses for the new “yield from” syntax in Python 3.3?
...to-raise it's own StopIteration and because wrap.send(i) is not inside try block, it would be actually raised at this point (i.e. traceback will only report the line with wrap.send(i), not anything from inside the generator)
– Aprillion
Mar 1 '17 at 8:57
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常用Linux命令详解(持续更新) - 更多技术 - 清泛网 - 专注C/C++及内核技术
...统的磁盘使用情况 k 字节为单位显示
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/hda1 579084 318912 230756 59% /
none 0 0 0 - /proc
none 0 0 0 - /sy...
