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When can I use a forward declaration?
I am looking for the definition of when I am allowed to do forward declaration of a class in another class's header file:
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Change working directory in my current shell context when running Node script
I am trying to change the working directory of my Node.js script when it is run from a bin script. I have something like the following:
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In which situations do we need to write the __autoreleasing ownership qualifier under ARC?
I'm trying to complete the puzzle.
3 Answers
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Why invoke Thread.currentThread.interrupt() in a catch InterruptException block?
...catch the InterruptException and swallow it, you essentially prevent any higher level methods/thread groups from noticing the interrupt. Which may cause problems.
By calling Thread.currentThread().interrupt(), you set the interrupt flag of the thread, so higher level interrupt handlers will notice ...
Visual Studio 2010 annoyingly opens documents in wrong MDI pane
Visual Studio's MDI is currently causing me a lot of frustration. Here is my basic layout:
5 Answers
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how does multiplication differ for NumPy Matrix vs Array classes?
The numpy docs recommend using array instead of matrix for working with matrices. However, unlike octave (which I was using till recently), * doesn't perform matrix multiplication, you need to use the function matrixmultipy(). I feel this makes the code very unreadable.
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npm install vs. update - what's the difference?
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The difference between npm install and npm update handling of package versions specified in package.json:
{
"name": "my-project",
"version": "1.0", // install update
"dependencies": { // ---------...
vector::at vs. vector::operator[]
I know that at() is slower than [] because of its boundary checking, which is also discussed in similar questions like C++ Vector at/[] operator speed or ::std::vector::at() vs operator[] << surprising results!! 5 to 10 times slower/faster! . I just don't understand what the at() met...
Why isn't Python very good for functional programming? [closed]
I have always thought that functional programming can be done in Python. Thus, I was surprised that Python didn't get much of a mention in this question, and when it was mentioned, it normally wasn't very positive. However, not many reasons were given for this (lack of pattern matching and algebra...
What is the most pythonic way to check if an object is a number?
Given an arbitrary python object, what's the best way to determine whether it is a number? Here is is defined as acts like a number in certain circumstances .
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