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What is move semantics?
...erence to a string
{
data = that.data;
that.data = nullptr;
}
What have we done here? Instead of deeply copying the heap data, we have just copied the pointer and then set the original pointer to null (to prevent 'delete[]' from source object's destructor from releasing our...
C++对象布局及多态探索之菱形结构虚继承 - C/C++ - 清泛网 - 专注C/C++及内核技术
...lea ecx,[ebp+FFFFF7F0h]
03 0042399B call 0041DE60
04 004239A0 mov byte ptr [ebp+FFFFF7FAh],51h
05 004239A7 mov byte ptr [ebp+FFFFF7F4h],52h
06 004239AE mov byte ptr [ebp+FFFFF7F9h],52h
07 004239B5 mov eax,dword ptr [ebp+FFFFF7F0h]
08 004239BB mov ecx,dword ptr [eax+4]
09 004239BE mov b...
Difference in make_shared and normal shared_ptr in C++
...understand why make_shared is more efficient than directly using shared_ptr .
8 Answers
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Is std::unique_ptr required to know the full definition of T?
...rary require that they be instantiated with complete types. However shared_ptr and unique_ptr are partial exceptions. Some, but not all of their members can be instantiated with incomplete types. The motivation for this is to support idioms such as pimpl using smart pointers, and without risking und...
Keep-alive header clarification
...-aware devices and the server's OS will recognize the connection by this.
HTTP works with request-response: client connects to server, performs a request and gets a response. Without keep-alive, the connection to an HTTP server is closed after each response. With HTTP keep-alive you keep the underl...
Is there any use for unique_ptr with array?
std::unique_ptr has support for arrays, for instance:
17 Answers
17
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What is the difference between a port and a socket?
...ve me (see comments) so here's a real sample. I connected a web browser to http://dilbert.com and then ran netstat -an -p tcp. The last six lines of the output contain two examples of the fact that address and port are not enough to uniquely identify a socket. There are two distinct connections betw...
SEH stack 结构探索（1）--- 从 SEH 链的最底层（线程第1个SEH结构）说起 -...
...itializeExceptionChain (772e9cdf)
772e9d0a ff750c push dword ptr [ebp+0Ch]
772e9d0d ff7508 push dword ptr [ebp+8]
772e9d10 e806000000 call ntdll32!__RtlUserThreadStart (772e9d1b)
772e9d15 cc int 3
772e9d16 90 nop
772e9d17 90 ...
How do I pass a unique_ptr argument to a constructor or a function?
...o move semantics in C++11 and I don't know very well how to handle unique_ptr parameters in constructors or functions. Consider this class referencing itself:
...
linux 下巧妙使用squid代理服务器 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...主配置文件是/etc/squid/squid.conf ，最基本的设置如下。
http_port 192.168.16.1:8080
cache_mem 64 MB
cache_dir ufs /var/spool/squid 4096 16 256
cache_effective_user squid
cache_effective_group squid
dns_nameservers 61.144.56.101
cache_access_log /var/log/squid/access...