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Floating point vs integer calculations on modern hardware
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why did you mix mult and div? Shouldn't it be interesting if mult is maybe (or expectedly?) much faster then div?
– Kyss Tao
Mar 28 '12 at 15:06
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ReactJS: Modeling Bi-Directional Infinite Scrolling
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This is a mix of an infinite table and an infinite scroll scenario. The best abstraction I found for this is the following:
Overview
Make a <List> component that takes an array of all children. Since we do not render them, it's...
Reset/remove CSS styles for element only
...-size: unset;
min-height: unset;
min-inline-size: unset;
min-width: unset;
mix-blend-mode: unset;
object-fit: unset;
object-position: unset;
offset-block-end: unset;
offset-block-start: unset;
offset-inline-end: unset;
offset-inline-start: unset;
opacity: unset;
order: unset;
orient: unset;
outline-...
'printf' vs. 'cout' in C++
...inting of something like 0x0424 is just crazy. This is caused by std::cout mixing state and actual values. I never saw a language where something like std::setfill would be a type (other than C++, of course). printf clearly separates arguments and actual type. I really would prefer to maintain the p...
What is a raw type and why shouldn't we use it?
...ler uses raw types.
Unchecked Error Messages
As mentioned previously, when mixing legacy code with generic code, you may encounter warning messages similar to the following:
Note: Example.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
This can happen w...
boost::flat_map and its performance compared to map and unordered_map
...tiplies the cost by some weighting factor.
Point 4 is a question of big O mixed with cache issues. Some bad-complexity containers can largely outperform low-complexity containers for small number of types (like map vs. vector, because their cache locality is good, but map fragments the memory). And...
Fast Bitmap Blur For Android SDK
...oglers, here is an algorithm that I ported from Quasimondo. It's kind of a mix between a box blur and a gaussian blur, it's very pretty and quite fast too.
Update for people encountering the ArrayIndexOutOfBoundsException problem : @anthonycr in the comments provides this information :
I found...
How should a model be structured in MVC? [closed]
...e code that is mean for production, it becomes an anti-pattern, because it mixes storage and business logic. And since Model Layer is completely unaware of the other MVC parts. This does not change depending on variation on original pattern. Even when using MVVM. There are no "multiple models" and t...
Separation of business logic and data access in django
... expressing commands; they are both valid options and it is not unusual to mix the two approaches.
The service layer
The service module has already been described by @Hedde. Here you define a separate module and each command is represented as a function.
services.py
def activate_user(user_id):
u...
正则表达式 30 分钟入门教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...e 30 Minute Regex Tutorial。由于评论里有过长的URL,所以本页排版比较...
来园子之前写的一篇正则表达式教程，部分翻译自codeproject的The 30 Minute Regex Tutorial。
由于评论里有过长的URL,所以本页排版比较混乱,推荐你到原处...