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How to determine an interface{} value's “real” type?
...
I'm going to offer up a way to return a boolean based on passing an argument of a reflection Kinds to a local type receiver (because I couldn't find anything like this).
First, we declare our anonymous type of type reflect.Value:
type AnonymousType reflect.Value
Then w...
Timer function to provide time in nano seconds using C++
...en RDTSC and your system's built-in clock facilities (which will likely be based on clock(), clock_gettime() and/or QueryPerformanceCounter.
Note that the RDTSC instruction is x86-specific. QueryPerformanceCounter is Windows only. And clock_gettime() is POSIX only. Below I introduce two new cloc...
现实版《道士下山》：道长老梁的四面人生 - 轻松一刻 - 清泛网 - 专注C/C++...
...空拍下来，发到微博上。有一天，他连着发了11张天空的图片，每张都配上了一句自己写的诗，“山水悠然道写意，云天一色画无边。”
终南山上有山泉，滋养了各种野生果树。老梁熟悉每一种果子。他挖山药豆、采槐花、吃...
C/C++ NaN constant (literal)?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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In Java, what is the best way to determine the size of an object?
... with piles of data rows. I give the user a summary of the number of rows based on types of data, but I want to make sure that I don't read in too many rows of data and cause OutOfMemoryError s. Each row translates into an object. Is there an easy way to find out the size of that object programm...
How do I find which rpm package supplies a file I'm looking for?
...86_64 : The GNU versions of grep pattern matching utilities.
Repo : base
Matched from:
Filename : /bin/grep
You may prefer the output and speed of the repoquery tool, available in the yum-utils package.
sudo yum install yum-utils
repoquery --whatprovides '*bin/grep'
grep-0:2.5.1-55.el5....
ASP.NET Identity's default Password Hasher - How does it work and is it secure?
...);
Buffer.BlockCopy(buffer2, 0, dst, 0x11, 0x20);
return Convert.ToBase64String(dst);
}
Verifying:
public static bool VerifyHashedPassword(string hashedPassword, string password)
{
byte[] buffer4;
if (hashedPassword == null)
{
return false;
}
if (password == nu...
OpenSSH升级后不能登录的问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...v packagekit-media.repo packagekit-media.repo.bak
配置源
vi CentOS-Base.repo
[base]
name=CentOS-$releasever - Base - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/6.7/os/$basearch/
http://mirrors.aliyuncs.com/centos/6.7/os/$basearch/
#mirro...
Java 理论与实践: 线程池与工作队列 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...使用 wait() 和 notify() 方法，这两个方法都难于使用。如果编码不正确，那么可能丢失通知，导致线程保持空闲状态，尽管队列中有工作要处理。使用这些方法时，必须格外小心；即便是专家也可能在它们上面出错。而最好使用现...
How to find the type of an object in Go?
...
Based on a barebones benchmark, the reflect approach is surprisingly more efficient gist.github.com/mrap/7f08c9549289b6aea2923c27888e7e3e
– Mike Rapadas
Apr 6 '17 at 20:53
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