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Virtual functions and performance - C++
...hms and I/O.
An excellent article that talks about virtual functions (and more) is Member Function Pointers and the Fastest Possible C++ Delegates.
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How do I put two increment statements in a C++ 'for' loop?
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It IS a comma operator. The assignation ties more strongly than the comma operator, so x=i++,a++ is parsed (x=i++),a++ and not x=(i++, a++). That characteristic is misused by some libraries so that v = 1,2,3; does the intuitive things, but only because v = 1 returns a ...
Step-by-step debugging with IPython
...s, this thread shows how to accomplish everything described in the OP (and more) using
a new important debugger in Emacs called RealGUD which can operate with any debugger (including ipdb).
The Emacs package isend-mode.
The combination of these two packages is extremely powerful and allows one to ...
What are the reasons why Map.get(Object key) is not (fully) generic
...ally useful, which I doubt happens often, a getByEquals(Object key) sounds more reasonable...
– mmm
Sep 26 '12 at 12:25
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What is a practical use for a closure in JavaScript?
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Difference in months between two dates
...te (with thanks to Gary)
If using the 'average months' method, a slightly more accurate number to use for the 'average number of days per year' is 365.2425.
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What exactly is Apache Camel?
...n open source Java framework that focuses on making integration easier and more accessible to developers. It does this by providing:
concrete implementations of all the widely used Enterprise Integration Patterns (EIPs)
connectivity to a great variety of transports and APIs
easy to use D...
Starting python debugger automatically on error
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@PiotrDobrogost Good point. I think it's more helpful to know that you can pass a tb object in, though, as it better demonstrates the API. Good to know both options exist.
– davidA
Dec 18 '16 at 23:35
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Javadoc: package.html or package-info.java
...ndum: The big difference seems to be package annotations. There's a little more in the way of rationale in 7.4 Package Declarations.
Addendum: The annotation feature is also mentioned here and here.
Addendum: See also What’s package-info.java for?.
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find vs find_by vs where
...e, you'd use the following syntax:
Model.find_by(name: "Bob")
.where is more of a catch all that lets you use a bit more complex logic for when the conventional helpers won't do, and it returns an array of items that match your conditions (or an empty array otherwise).
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