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Simultaneously merge multiple data.frames in a list
...ta.frame[, 1:12]
# matchname party st district chamber senate1993 name.x v2.x v3.x v4.x senate1994 name.y
#1 ALGIERE 200 RI 026 S NA <NA> NA NA NA NA <NA>
#2 ALVES 100 RI 019 S NA <NA> NA NA NA NA ...
初窥InnoDB的Memcached插件 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...整性，我们选择从源代码安装MySQL，需要注意的是早期的版本有内存泄漏，所以推荐安装最新的稳定版，激活WITH_INNODB_MEMCACHED即可：
shell> groupadd mysql
shell> useradd -r -g mysql mysql
shell> tar zxvf mysql-<VERSION>.tar.gz
shell> cd mysql-5.6.13
sh...
Why are arrays of references illegal?
...t;T&,N> to accept initializer containing addresses = {&v1, &v2 etc})
– greggo
Sep 12 '14 at 22:26
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git push to specific branch
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I'm a bit confused, I'm using v2.10, when I type git push it tries to push all tracked branches, contrary to what you said ("the remote of the current branch is the default value").
– Roberto
Feb 22 '17 at 0:00
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How to implement the factory method pattern in C++ correctly
...&polar);
The only disadvantage is that it looks a bit verbose:
Vec2 v2(Vec2::Cartesian(3.0f, 4.0f));
But the good thing is that you can immediately see what coordinate type you're using, and at the same time you don't have to worry about copying. If you want copying, and it's expensive (as ...
What is the rationale for all comparisons returning false for IEEE754 NaN values?
... unknown
Even .NET does not provide a bool? operator==(double v1, double v2) operator, so you are still stuck with the silly (NaN == NaN) = false result.
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AngularJS : Prevent error $digest already in progress when calling $scope.$apply()
...d $timeout etc. -- has been left off.)
window.gapi.client.load('oauth2', 'v2', function() {
var request = window.gapi.client.oauth2.userinfo.get();
request.execute(function(response) {
// This happens outside of angular land, so wrap it in a timeout
// with an implied apply...
AES Encryption for an NSString on the iPhone
...y look over the "Data format" page tonight to make sure it's up to date on v2.0 (the main docs are up to date, but I can't remember if I revised the data format page).
– Rob Napier
Aug 14 '12 at 22:48
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When I catch an exception, how do I get the type, file, and line number?
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Source (Py v2.7.3) for traceback.format_exception() and called/related functions helps greatly. Embarrassingly, I always forget to Read the Source. I only did so for this after searching for similar details in vain. A simple question,...
驯服Linux OOM Killer（优质英文资料翻译） - 操作系统(内核) - 清泛网 - 专注IT技能提升
...动进行更大程度的控制。
为什么是 OOM Killer？
主要发行版内核设置/proc/sys/vm/overcommit_memory的默认值 为零，这意味着进程可以请求比系统中当前可用的内存更多的内存。这是基于试探法完成的，即分配的内存不会立即使用，并...