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Enable remote connections for SQL Server Express 2012

...iscovered was here: How do I configure SQL Server Express to allow remote tcp/ip connections on port 1433? Run SQL Server Configuration Manager. Go to SQL Server Network Configuration > Protocols for SQLEXPRESS. Make sure TCP/IP is enabled. So far, so good, and entirely expected. But then: ...
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Object-orientation in C

...r; /* derived class members */ }; struct derived d; struct base *base_ptr = (struct base *)&d; // upcast struct derived *derived_ptr = (struct derived *)base_ptr; // downcast To get polymorphism (i.e. virtual functions), you use function pointers, and optionally function pointer tables,...
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boost多索引容器multi_index_container实战 - C/C++ - 清泛网 - 专注C/C++及内核技术

... boost多索引容器multi_index_container性能测试 原文地址:http://blog.csdn.net/gongxinheng/archive/2010/03/27/5421914.aspx by: HengStar 2010/3/27 我是一名游戏开发程序员,研究C++ Boost库已经有一小段时日了,学的越多愈发愈感觉出它的强大,每次...
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How do you detect/avoid Memory leaks in your (Unmanaged) code? [closed]

... In C++: use RAII. Smart pointers like std::unique_ptr, std::shared_ptr, std::weak_ptr are your friends. share | improve this answer | follow ...
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Is there a way for multiple processes to share a listening socket?

...ix domain socket and use libancillary to send over the descriptor. See: https://www.linuxquestions.org/questions/programming-9/how-to-share-socket-between-processes-289978/ For creating AF_UNIX Sockets: http://docs.sun.com/app/docs/doc/817-4415/portmapper-51908?a=view For example code: ht...
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When to use “new” and when not to, in C++? [duplicate]

... @Andrew Grant If you must use new use shared_ptr or unique_prt. that were introduced in c++11 STL <memory> shared pointers will do book keeping of delete automatically. note for arrays default deleter provided by shared_ptr calls delete, not delete[] therefore us...
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what happens when you type in a URL in browser [closed]

... extremely rough and oversimplified sketch, assuming the simplest possible HTTP request (no HTTPS, no HTTP2, no extras), simplest possible DNS, no proxies, single-stack IPv4, one HTTP request only, a simple HTTP server on the other end, and no problems in any step. This is, for most contemporary int...
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RabbitMQ and relationship between channel and connection

..., channel is one. I found it very helpful in rounding out my understanding https://www.rabbitmq.com/tutorials/amqp-concepts.html Some applications need multiple connections to an AMQP broker. However, it is undesirable to keep many TCP connections open at the same time because doing so consumes sys...
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How many system resources will be held for keeping 1,000,000 websocket open? [closed]

...ebSockets since WebSockets are fundamentally long-lived TCP sockets with a HTTP-like handshake and minimal framing for messages. The real question is: could a single server handle 1,000,000 simultaneous socket connections and what server resources would this consume? The answer is complicated by se...
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How to open a specific port such as 9090 in Google Compute Engine

... On my instance, I only have allow http and allow https I've added a new firewall rule but I can't seem to find it. I'm also on the free tier, if it helps. – A. L Aug 3 '17 at 6:48 ...