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Is the practice of returning a C++ reference variable evil?
...e function, use a smart pointer (or in general, a container):
std::unique_ptr<int> getInt() {
return std::make_unique<int>(0);
}
And now the client stores a smart pointer:
std::unique_ptr<int> x = getInt();
References are also okay for accessing things where you know the ...
How to close IPython Notebook properly?
...low command:
shell> juypter notebook list
Currently running servers:
http://localhost:8888/?token=ef12021898c435f865ec706d7c9af8607a7ba58bbee98632 :: /Users/username/jupyter-notebooks [/code]
share
|
...
How to pass objects to functions in C++?
...ment, in which case you pass by pointer, so that users can pass NULL/0/nullptr instead; apply the previous rule to determine whether you should pass by a pointer to a const argument
they are of built-in types, which can be passed by copy
they are to be changed inside the function and such changes sh...
SQL Server, convert a named instance to default instance?
... for INSTANCENAME you want to make available (i.e. SQLExpress)
Right-click TCP/IP and click Enabled
Right-click TCP/IP and go to Properties
Go to the IP Addresses tab
Scroll down to the IPAll section
Clear the field TCP Dynamic Ports (i.e. empty/blank)
Set TCP Port to 1433
Click Ok
Go to SQL Serv...
Loadbalancing web sockets
... a 2 core, 4GB RAM VM.
Also note that you can do L7 load-balancing on the HTTP path announced during the initial WebSocket handshake. In that case the load balancer has to maintain state (which source IP-port pair is going to which backend node). It will probably scale to millions of connections ne...
Download the Android SDK components for offline install
... find all the list of xml files where packages are available
Fetching https://dl-ssl.google.com/android/repository/addons_list-2.xml
Fetched Add-ons List successfully
Fetching URL: https://dl-ssl.google.com/android/repository/repository-7.xml
Validate XML: https://dl-ssl.google.com/androi...
What exception classes are in the standard C++ library
... std::ios_base::failure <ios> Input or output error
Source: http://en.cppreference.com/w/cpp/error/exception
In practice, most exceptions are custom exceptions derived from logic_error and runtime_error. Not that these are neglected, but that many exceptions are domain specific.
Kee...
How do I find which program is using port 80 in Windows? [duplicate]
...
If you want to be really fancy, download TCPView from Sysinternals:
TCPView is a Windows program that will
show you detailed listings of all TCP
and UDP endpoints on your system,
including the local and remote
addresses and state of TCP
connections. On...
TransactionScope automatically escalating to MSDTC on some machines?
... an escalation when connecting to 2005.
Check the documentation on MSDN - http://msdn.microsoft.com/en-us/library/ms172070.aspx
Promotable Transactions in SQL Server 2008
In version 2.0 of the .NET Framework
and SQL Server 2005, opening a second
connection inside a TransactionScope
w...
Django connection to PostgreSQL: “Peer authentication failed”
...eUploader: {
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