alias

So in C++, I'm used to being able to do: typedef int PeerId; This allows me to make a type more self-documenting, but additionally also allows me to make PeerId represent a different type at any time without changing all of the code. I could even turn PeerId into a class if I wanted. This kind of extensibility is what I want to have in C#, however I am having trouble figuring out how to create an alias for 'int' in C#. I think I can use the using statement, but it only has scope in the current file I believe, so that won't work (The alias needs to be accessible between multiple files without

I am using MacOSX Snow Leopard 10.6.8.... I am the only user on this machine and I should be admin. I trying to edit my bash_profile to give it this simple alias: alias server=' open http://localhost:8000 && python -m SimpleHTTPServer' however when I use the terminal and type: vim ~/. bash_profile and paste in this alias I get message saying I cant save due to permissions. So then I show all hidden files and go to fix the permissions on this file but the file is all grayed out.... I cant change anything. What can I do?? You need to open it with sudo. sudo vim ~/.bash_profile The file appears

Linux03 /Linux基本命令 1.Linux命令行的组成结构 2.Linux系统命令操作语法格式 命令 空格 参数 空格 【文件或路径】需要处理的内容 rm -rf /tmp/* ls -la /home 1.一般情况下，【参数】是可选的，一些情况下【文件或路径】也是可选的 2.参数 > 同一个命令，跟上不同的参数执行不同的功能 3.执行linux命令，添加参数的目的是让命令更加贴切实际工作的需要 4.linux命令，参数之间，普遍应该用一个或多个空格分割 3.创建一个目录 /boy windows下： 鼠标右击 > 新建文件夹 Linux下： make directory > mk dir > mkdir ------------------------------- mkdir /boy ------------------------------- cd / mkdir oldboy #递归创建a/b c/d mkdir -p a/b c/d #递归创建test/a,b,c,d四个目录 mkdir -p test/{a,b,c,d} #递归创建文件夹a/b/c/d/e mkdir -p a/b/c/d/e 4.查看目录 /boy #显示/boy下的内容 ls /boy 5.改变当前的目录/位置 cd /home cd ~ cd - 6.打印当前工作目录

1.设置静态ip 　　vim /etc/sysconfig/network-scripts/ifcfg-ens33 　　将BOOTPROTO=dhcp修改为BOOTPROTO=static 　　ONBOOT=no修改为ONBOOT=yes 新增 　　IPADDR=192.168.80.129 　　PREFIX=24　　　　#NETMASK=255.255.255.0 　　GATEWAY=192.168.80.2 　　DNS1=114.114.114.114 　　DNS2=8.8.8.8 之后重启网络服务 　　systemctl restart network 2.关闭NetworkManager 　　systemctl status NetworkManager 　　systemctl stop NetworkManager 　　systemctl disable NetworkManager 3.关闭selinux 　　vim /etc/selinux/config 　　将SELINUX=enforcing注释掉，并添加SELINUX=disabled，之后重启电脑即可 4.修改主机名 　　hostnamectl set-hostname centos2 5.修改yum源为阿里云 　　cd /etc/yum.repos.d 　　wget http://mirrors.aliyun

Given a C++11 enum class, nested inside several long- and ugly-named namespaces: namespace long_and_ugly { enum class colour { red, green, blue }; } Can aliases be made of the enumeration values? With clang++ 3.5, it is possible to do what follows: using long_and_ugly::colour; // take all the values into the current namespace using long_and_ugly::colour::red; // take only 'red' into the current namespace function_taking_colour_argument( red ); // instead of fully referring to the value g++ 4.9, however, complains. I can't copy its error message because I can't access the code, but it

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: The docker command has a ps sub-command that emits very long lines: $ docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 6e8ec8a16da4 waisbrot/wait:latest "/wait" 4 minutes ago Exited (0) 4 minutes ago wait-for-janus-test 9dbf0739561f whoop/downsampler:master "./run.bash" 4 minutes ago Up 4 minutes 0.0.0.0:32855->4369/tcp, 0.0.0.0:32854->9100/tcp, 0.0.0.0:32853->9101/tcp, 0.0.0.0:32852->9102/tcp, 0.0.0.0:32851->9103/tcp, 0.0.0.0:32850->9104/tcp, 0.0.0.0:32849->9105/tcp, 0.0.0.0:32848->9106/tcp, 0.0.0.0:32847->9107/tcp, 0.0.0

I found one source which successfully overrode Time.strftime like this: class Time alias :old_strftime :strftime def strftime #do something old_strftime end end The trouble is, strftime is an instance method. I need to override Time.now - a class method - in such away that any caller gets my new method, while the new method still calls the original .now method. I've looked at alias_method and have met with no success. This is kinda hard to get your head around sometimes, but you need to open the "eigenclass" which is the singleton associated with a specific class object. the syntax for this is