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What is the fastest integer division supporting division by zero no matter what the result is?
...nspired by some of the comments I got rid of the branch on my Pentium and gcc compiler using
int f (int x, int y)
{
y += y == 0;
return x/y;
}
The compiler basically recognizes that it can use a condition flag of the test in the addition.
As per request the assembly:
.globl f
...
How do you validate a URL with a regular expression in Python?
...with @Swarf since even urlparse({}) where the input is not even a string succeeds without a visible error
– RubenLaguna
Oct 10 '18 at 12:59
...
What is the list of supported languages/locales on Android?
...uwait)]
ar_LB [Arabic (Lebanon)]
ar_LY [Arabic (Libya)]
ar_MA [Arabic (Morocco)]
ar_MR [Arabic (Mauritania)]
ar_OM [Arabic (Oman)]
ar_PS [Arabic (Palestine)]
ar_QA [Arabic (Qatar)]
ar_SA [Arabic (Saudi Arabia)]
ar_SD [Arabic (Sudan)]
ar_SO [Arabic (Somalia)]
ar_SS [Arabic (South Sudan)]
ar_SY [Arabi...
CSS media queries: max-width OR max-height
... derived from:
CSS media queries by Mozilla Contributors (licensed under CC-BY-SA 2.5). Some code samples were used with minor alterations to (hopefully) increase clarity of explanation.
share
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i...
Is a `=default` move constructor equivalent to a member-wise move constructor?
...:
movable::move
nonmovable::copy
http://coliru.stacked-crooked.com/a/420cc6c80ddac407
Update: But if you comment out the line has_nonmovable(has_nonmovable &&) = default;, then copy will be used for both members: http://coliru.stacked-crooked.com/a/171fd0ce335327cd - prints:
movable::co...
How do you calculate the average of a set of circular data? [closed]
...s doesn't make starblue's answer wrong, it's just an exceptional case, as occurs in many geomteric problems.
– SmacL
Jan 29 '09 at 14:31
5
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Supabase 拓展：App 接入 Supabase 后端服务（Auth + PostgreSQL + Storage...
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DaffyMenu 扩展：弹出菜单扩展，为组件添加弹出式菜单功能 · App Inventor 2 中文网
...建 Apps 首页 教育 中文教育版 各版本对比 App上架指南 入门必读 IoT专题 AI2拓展 Aia Store 关于 关于我们 发布日志 服务条款 ...
Is multiplication and division using shift operators in C actually faster?
... to do its job. This is not the case. You actually get better code from gcc -O3 on x86 with return i*10 than from the shift version. As someone who looks at compiler output a lot (see many of my asm / optimization answers), I'm not suprised. There are times when it can help to hand-hold the compi...
How does the compilation/linking process work?
...ompilation
Compilation refers to the processing of source code files (.c, .cc, or
.cpp) and the creation of an 'object' file. This step doesn't create
anything the user can actually run. Instead, the compiler merely
produces the machine language instructions that correspond to the
source code file t...