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Difference between std::result_of and decltype
I have some trouble understanding the need for std::result_of in C++0x. If I understood correctly, result_of is used to obtain the resulting type of invoking a function object with certain types of parameters. For example:
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What are conventions for filenames in Go?
I could find the conventions for naming packages in Go: no underscore between words, everything lowercase.
4 Answers
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How do I update an entity using spring-data-jpa?
Well the question pretty much says everything. Using JPARepository how do I update an entity?
9 Answers
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Purpose of Django setting ‘SECRET_KEY’
...s.djangoproject.com/en/dev/ref/settings/#secret-key ), but I was looking for a more in-depth explanation of this, and why it is required.
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Reading a file line by line in Go
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NOTE: The accepted answer was correct in early versions of Go. See the highest voted answer contains the more recent idiomatic way to achieve this.
There is function ReadLine in package bufio.
Please note that if the line does not fit into the read buff...
How to merge dictionaries of dictionaries?
I need to merge multiple dictionaries, here's what I have for instance:
29 Answers
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What Makes a Good Unit Test? [closed]
...(There's a version with C#-Nunit too.. but I have this one.. its agnostic for the most part. Recommended.)
Good Tests should be A TRIP (The acronymn isn't sticky enough - I have a printout of the cheatsheet in the book that I had to pull out to make sure I got this right..)
Automatic : Invoking o...
Scala: Abstract types vs generics
...e, but there's a distinction about what abstraction principle you can use for what kinds of things. And you could argue that this distinction is fairly arbitrary.
The Scala Way
We decided to have the same construction principles for all three sorts of members.
So you can have abstract fields as we...
What exactly is Heroku?
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Heroku is a cloud platform as a service. That means you do not have to worry about infrastructure; you just focus on your application.
In addition to what Jonny said, there are a few features of Heroku:
Instant Deployment with Git push - build o...
Permanently Set Postgresql Schema Path
...er)
ALTER ROLE <your_login_role> SET search_path TO a,b,c;
Two important things to know about:
When a schema name is not simple, it needs to be wrapped in double quotes.
The order in which you set default schemas a, b, c matters, as it is also the order in which the schemas will be looked...