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What is a reasonable code coverage % for unit tests (and why)? [closed]
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GishuGishu
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Alternatives to gprof [closed]
... was an attempt to remedy the limitations of pc-only sampling.
that timing functions is more important than capturing time-consuming lines of code.
The reason for that myth is that gprof was not able to capture stack samples, so instead it times functions, counts their invocations, and tries to capt...
Colors in JavaScript console
...36px 121px hsl(653.4, 100%, 50%), -38px 122px hsl(658.8, 100%, 50%), -39px 123px hsl(664.2, 100%, 50%), -41px 124px hsl(669.6, 100%, 50%), -42px 125px hsl(675, 100%, 50%), -43px 126px hsl(680.4, 100%, 50%), -45px 127px hsl(685.8, 100%, 50%), -46px 128px hsl(691.2, 100%, 50%), -47px 129px hsl(696.6, ...
Understanding __get__ and __set__ and Python descriptors
...al methods:
__get__ (non-data descriptor method, for example on a method/function)
__set__ (data descriptor method, for example on a property instance)
__delete__ (data descriptor method)
These descriptor objects can be used as attributes on other object class definitions. (That is, they live in...
PHP parse/syntax errors; and how to solve them
... trying to dereference constants (before PHP 5.6) as arrays:
$var = const[123];
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At least PHP interprets that const as a constant name.
If you meant to access an array variable (which is the typical cause here), then add the leading $ sigil - so it becomes a $varname.
You are trying to...
Programmatically Lighten or Darken a hex color (or rgb, and blend colors)
... and accepts standard RGB colors in the form of strings. For example: "rgb(123,45,76)" or "rgba(45,15,74,0.45)".
Shades colors to white or black by percentage.
Blends colors together by percentage.
Does Hex2RGB and RGB2Hex conversion at the same time, or solo.
Accepts 3 digit (or 4 digit w/ alpha) H...
廉价共享存储解决方案1-drbd+ha+nfs - 更多技术 - 清泛网 - 专注C/C++及内核技术
...gfs2,cman实现双主分布式文件存储方案
http://blog.sae.sina.com.cn/archives/3609
2.1搭建实验环境了
所需要的软件
REHL 6.4
drbd-8.4.6.tar.gz
drbd-utils-8.9.3.tar.gz （注意：drbd和drbd-utils的版本要对应起来）
2.2安装操作系统，配置...
What does the `forall` keyword in Haskell/GHC do?
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123
Can anybody completely explain the forall keyword in clear, plain English?
No. (Well, may...
In Java, what is the best way to determine the size of an object?
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123
You should use jol, a tool developed as part of the OpenJDK project.
JOL (Java Object Layo...
List comprehension vs map
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10000 loops, best of 3: 181/118/123 usec per loop ^^^^^^^^^^^^^^^^^^
for list(<generator>), probably optimized
% python3 -mtimeit -s 'xs=range(1000)' 'f=lambda x:x' 'z=list(f(x) for x in xs)' ...