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What is a smart pointer and when should I use one?
...ue_ptr, std::shared_ptr and std::weak_ptr.
There was also std::auto_ptr. It was very much like a scoped pointer, except that it also had the "special" dangerous ability to be copied — which also unexpectedly transfers ownership.
It was deprecated in C++11 and removed in C++17, so you shouldn't u...
How to change the opacity (alpha, transparency) of an element in a canvas element after it has been
...s> element, I would like to load an image file (PNG, JPEG, etc.), draw it to the canvas completely transparently, and then fade it in. I have figured out how to load the image and draw it to the canvas, but I don't know how to change its opacity once it as been drawn.
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What's the difference between git clone --mirror and git clone --bare
The git clone help page has this to say about --mirror :
7 Answers
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How to have conditional elements and keep DRY with Facebook React's JSX?
...JSX? Here is an example using a banner that should be in the component if it has been passed in. What I want to avoid is having to duplicate HTML tags in the if statement.
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Difference between numpy.array shape (R, 1) and (R,)
...turn (R,) . This will make matrix multiplication more tedious since explicit reshape is required. For example, given a matrix M , if we want to do numpy.dot(M[:,0], numpy.ones((1, R))) where R is the number of rows (of course, the same issue also occurs column-wise). We will get matrices ar...
Downloading a Google font and setting up an offline site that uses it
I have a template and it has a reference to a Google font like this:
11 Answers
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Why is Go so slow (compared to Java)?
...re designed to run fast themselves and produce code that's OK (there is a bit of optimisation). gccgo uses GCC's existing optimisation passes, and might provide a more pointful comparison with C, but gccgo isn't feature-complete yet.
Benchmark figures are almost entirely about quality of implementa...
How do I make my GUI behave well when Windows font scaling is greater than 100%
...inst assuming DPI-awareness is easy.
I generally avoid DPI-aware scaling with TForm.Scaled = True. DPI awareness is only important to me when it becomes important to customers who call me and are willing to pay for it. The technical reason behind that point of view is that DPI-awareness or not, y...
What is the difference between 'git pull' and 'git fetch'?
What are the differences between git pull and git fetch ?
36 Answers
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String comparison using '==' vs. 'strcmp()'
It seems that PHP's === operator is case sensitive. So is there a reason to use strcmp() ?
13 Answers
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