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Best way to parse command-line parameters? [closed]
...ing a List).
Note also that this approach allows for concatenation of multiple command line arguments - even more than two!
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What is the copy-and-swap idiom?
...y that, but unqualified calls to swap will use our custom swap operator, skipping over the unnecessary construction and destruction of our class that std::swap would entail.)
An in-depth explanation
The goal
Let's consider a concrete case. We want to manage, in an otherwise useless class, a dyn...
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock'
...the mysql server. If you do not have mysql server installed on the address/IP address you mentioned with '-h', the above error will pop up. This is because it is not able to connect to MySQL server through the socket mysql.sock 2) If Mysql-server is already installed, it should be running.If it's no...
App Inventor 2 拓展参考文档 · App Inventor 2 中文网
...程 IoT专题 AI2拓展 ChatGPT接入 Aia Store 开通VIP 搜索 App Inventor 2 拓展参考文档
中文网拓展
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How do you sign a Certificate Signing Request with your Certification Authority?
...cConstraints = CA:FALSE
keyUsage = digitalSignature, keyEncipherment
subjectAltName = @alternate_names
nsComment = "OpenSSL Generated Certificate"
####################################################################
[ alternate_names ]
DNS.1 = example.com
DNS.2 =...
高并发服务端分布式系统设计概要 - C/C++ - 清泛网 - 专注C/C++及内核技术
...作：（1）管理系统全局配置，发送全局控制信息；（2）监控各个group的工作状态，提供心跳服务，若发现宕机，通知该group发起分布式选举产生新的Group Master；（3）处理Client端首次到达的请求，找出负责处理该请求的group并将此...
HttpListener Access Denied
... edited May 8 '19 at 11:58
Håkon K. Olafsen
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answered Nov 6 '10 at 21:44
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How to filter rows in pandas by regex
...ted Jun 4 '18 at 12:10
Jean-François Corbett
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answered Feb 20 '18 at 11:35
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How to validate an email address using a regular expression?
... that validates MOST email addresses correctly, assuming they don't use an IP address as the server part.
75 Answers
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Java current machine name and logged in user?
...he Java API says that getHostName() will return
the host name for this IP address, or if the operation is not allowed by the security check, the textual representation of the IP address.
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