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What is a memory fence?
...g.
Absent memory fences or serializing instructions, the processor is free to reorder memory accesses. Some processor architectures have restrictions on how much they can reorder; Alpha is known for being the weakest (i.e., the one which can reorder the most).
A very good treatment of the ...
编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...
...(...)
{
}
}
函数_CxxThrowException的第二个参数是指向_ThrowInfo类型的对象的指针。_ThrowInfo也是编译器内部的一种数据类型。它是一个结构体，包含了所抛出的异常对象的各种相关的详细信息。其形式如下：
typedef const struct _s__Th...
What's a Good Javascript Time Picker? [closed]
... implemented it yet.
It's very "alpha", so there might be some bugs. Feel free to send me patches/pull requests. Have manually tested in IE 6&8, FF, Chrome and Opera (Latest stable on Linux for the latter ones).
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Can I arrange repositories into folders on Github?
...izing organizations has come to light due to the following announcement of free private repos for users: https://blog.github.com/2019-01-07-new-year-new-github/
Organization private repos are still not free. So using organizations to separate repos will result in your organization's inability to ut...
Node.js Logging
...ger;
You can then use this like:
var logger = require('./log');
logger.info('log to file');
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C# Events and Thread Safety
... before this question was asked (!)
(My test set-up may be flawed so feel free to download the source code and inspect it yourself. Any feedback is much appreciated.)
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What does map(&:name) mean in Ruby?
...erts it into a Proc.
This is very useful when you want to do things point-free style. An example is to check if there is any string in an array that is equal to the string "foo". There is the conventional way:
["bar", "baz", "foo"].any? { |str| str == "foo" }
And there is the point-free way:
["...
Best ways to teach a beginner to program? [closed]
...rry about memory management yet, but you can get used to having a bit more freedom and less handholding from the language interpreter. Python enforces whitespace and indenting, which is nice most of the time but not always. C# and Java let you manage your own whitespace while remaining strongly-type...
Create a matrix of scatterplots (pairs() equivalent) in ggplot2
...e better than facet_grid in limiting the plotted area, given the scales = 'free' parameter is supplied.
require(ggplot2)
require(dplyr)
require(tidyr)
gatherpairs <- function(data, ...,
xkey = '.xkey', xvalue = '.xvalue',
ykey = '.ykey', yvalue ...
Is it good practice to NULL a pointer after deleting it?
...eleting the object(s) it points to.
It can help catch many references to freed memory (assuming your platform faults on a deref of a null pointer).
It won't catch all references to free'd memory if, for example, you have copies of the pointer lying around. But some is better than none.
It will ma...