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How to initialize a private static const map in C++?
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map<int,int> create_map() {
map<int, int> m;
m[1] = 2; // etc.
return m;
}
}
map<int, int> const A::m = create_map();
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Questions every good Java/Java EE Developer should be able to answer? [closed]
... you are able to reason about classes, objects, inheritance, polymorphism, etc. It's actually much better than a candidate who knows the answer by heart but doesn't understand why
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What is “vectorization”?
...GE
Vectorization describes the absence of any explicit looping, indexing, etc., in the code - these things are taking place, of course, just “behind the scenes” in optimized, pre-compiled C code. Vectorized code has many advantages, among which are:
vectorized code is more concise and easier ...
why is plotting with Matplotlib so slow?
...e, you don't need to re-draw things like the axes boundaries, tick labels, etc.
2) In your case, there are a lot of subplots with a lot of tick labels. These take a long time to draw.
Both these can be fixed by using blitting.
To do blitting efficiently, you'll have to use backend-specific co...
When to use ref and when it is not necessary in C#
...hod's probably trying to do too much. That's not always the case (TryParse etc are the canonical examples of reasonable use of out) but using ref/out should be a relative rarity.
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Why CancellationToken is separate from CancellationTokenSource?
... many scenarios (such as deep library stacks, parallel computation, async, etc) and thus was designed with many complex use cases in mind. It is a design intended to encourage successful patterns and discourage anti-patterns without sacrificing performance.
If the door was left open for misbehav...
How do I intercept a method call in C#?
...wing answer that what should be avoided were Aspect, JointPoint, PointCut, etc. According to Interception documentation from CastleWindsor, none of those are required to accomplish what is asked.
Configure generic registration of an Interceptor, based on the presence of an attribute:
public class ...
Unit testing void methods?
...e could actually return three or more different states (Good, Normal, Bad, etc). In those cases, you'd just use
public StateEnum TrySendEmailToCustomer()
However, while the Try-Paradigm somewhat answers this question on how to test a void return, there are other considerations too. For example,...
When using the Java debugger in Intellij what does “Drop Frame” mean?
... have occurred - e. g. network traffic, file manipulations, console output etc. - cannot be rewound.
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Git: show more context when using git add -i or git add -e?
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git-meld-index runs meld -- or any other git difftool (kdiff3, diffuse, etc.) -- to allow you to interactively stage changes to the git index (also known as the git staging area).
This is similar to the functionality of git add -p, and git add --interactive.
In some cases meld is easier / ...