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how to provide a swap function for my class?
...ms a swap, it uses the equivalent of using std::swap; swap(t, u);.
swap (www.cplusplus.com):
Many components of the standard library (within std) call swap in an unqualified manner to allow custom overloads for non-fundamental types to be called instead of this generic version: Custom overload...
What is the difference between null and undefined in JavaScript?
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The comment from Nir O. is very important. If I want to have a variable that has no value in the beginning, I write "... = null", eg "myvar = null". This way - when I mistype "if (myxar == null) {...}" - the if block is not execu...
Format numbers in django templates
...tributed humanize application does this:
{% load humanize %}
{{ my_num|intcomma }}
Be sure to add 'django.contrib.humanize' to your INSTALLED_APPS list in the settings.py file.
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C++实现一款简单完整的聊天室服务器+客户端 - C/C++ - 清泛网 - 专注C/C++及内核技术
C++实现一款简单完整的聊天室服务器+客户端Linux下select函数实现的聊天服务器消息缓冲区类MessageBuffer，接收线程将受到的消息放入缓冲区，发送线程从缓冲区中取出消息MessageBuffe...目录：
Linux下select函数实现的聊天服务器
基...
Convert pem key to ssh-rsa format
I have a certificate in der format, from it with this command I generate a public key:
8 Answers
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How to copy commits from one branch to another?
...d you can't use git rebase to move your wss branch to the right place, the command to grab a single commit from somewhere and apply it elsewhere is git cherry-pick. Just check out the branch you want to apply it on, and run git cherry-pick <SHA of commit to cherry-pick>.
Some of the ways reba...
How to limit the amount of concurrent async I/O operations?
...// let's say there is a list of 1000+ URLs
var urls = { "http://google.com", "http://yahoo.com", ... };
// now let's send HTTP requests to each of these URLs in parallel
var allTasks = new List<Task>();
var throttler = new SemaphoreSlim(initialCount: 20);
foreach (var url ...
Changing one character in a string
What is the easiest way in Python to replace a character in a string?
11 Answers
11
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Jump to matching XML tags in Vim
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There is a vim plugin called matchit.vim . You can find it here: http://www.vim.org/scripts/script.php?script_id=39 . It was created pretty much the exact purpose you describe.
Install that, place your cursor on the body of the tag (not the <>, else it'll match those) and press % to jump t...
How to get default gateway in Mac OSX
... the route that packages will take to a particular host. E.g.
route -n get www.yahoo.com
The output would be similar to:
route to: 98.137.149.56
destination: default
mask: 128.0.0.0
gateway: 5.5.0.1
interface: tun0
flags: <UP,GATEWAY,DONE,STATIC,PRCLONING>
recvpipe sen...