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Boost智能指针——shared_ptr - C/C++ - 清泛网 - 专注C/C++及内核技术
...释放对该对象的所有权时，其所管理的的对象的内存才被自动释放。在共享对象的访问权限同时，也实现了其内存的自动管理。
boost::shared_ptr的内存管理机制：
boost::shared_ptr的管理机制其实并不复杂，就是对所管理的对象进行...
c语言编程中%g是什么格式？ - C/C++ - 清泛网 - 专注C/C++及内核技术
...中%g是什么格式？%g用来输出实数，它根据数值的大小，自动选f格式或e格式（选择输出时占宽度较小的一种），且不输出无意义的0。即%g是根据结果自动选择科学...%g用来输出实数，它根据数值的大小，自动选f格式或e格式（选...
CentOS系统下如何挂载第2块磁盘 - 更多技术 - 清泛网 - 专注C/C++及内核技术
.../home下
#mount /dev/sdb1 /home
5、 设置开机启动自动挂载
新创建的分区不能开机自动挂载，每次重启机器都要手动挂载。
设置开机自动挂载需要修改/etc/fstab文件
#vi /etc/fstab
在文件的最后增加...
HTTP POST and GET using cURL in Linux [duplicate]
...pe: application/json" -X GET http://hostname/resource | json
If you use pip and python, you can install pjson package by running this command:
pip install pjson
Usage:
curl -i -H "Accept: application/json" -H "Content-Type: application/json" -X GET http://hostname/resource | pjson
If you use...
MySQL Workbench: How to keep the connection alive
...this to take effect after changing the values.
– philip oghenerobo balogun
Jun 13 '19 at 14:06
@lepix @philip-oghenero...
Why is SCTP not much used/known
...changes is to replace SS7 protocol by some more elegant, fast and flexible IP-based protocol.
The telecom area is very conservative. The SS7 network has been used here for decades. It is very a reliable and closed network. This means a regular user has no access to it.
The IP network, in contrast,...
记一次MongoDB性能问题 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...ing，看上去和我的问题很类似，不过他的问题实质是由于自动分片导致数据迁移所致，解决方法是使用手动分片，而我并没有使用自动分片，自然不是这个原因。
…
询问了几个朋友，有人反映曾遇到过类似的问题，在他的场...
How to create a bash script to check the SSH connection?
I am in the process of creating a bash script that would log into the remote machines and create private and public keys.
1...
What is the overhead of creating a new HttpClient per call in a WebAPI client?
...I client?
Is it better to have one instance of the HttpClient for multiple calls?
7 Answers
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ERROR 2003 (HY000): Can't connect to MySQL server on '127.0.0.1' (111)
...pdate in case of MySQL replication enabled
Try to connect MySQL server on IP for which MySQL server is bind in 'my.cnfinstead oflocalhost or 127.0.0.1`.
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