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Is Dvorak typing appropriate for programming? [closed]
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definitely write down and test passwords before switching if you are relying on the muscle memory to type them.
– Evgeny
Dec 4 '10 at 21:33
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Functional programming - is immutability expensive? [closed]
...sing primitives, which may have to be boxed/unboxed. You're not trying to test the overhead of wrapping primitive objects, you're trying to test immutability.
You've chosen an algorithm where in-place operation is unusually effective (and provably so). If you want to show that there exist algorith...
How do pointer to pointers work in C?
...e a pointer to a 2 dimensional array instead.
Why it's dangerous?
void test()
{
double **a;
int i1 = sizeof(a[0]);//i1 == 4 == sizeof(double*)
double matrix[ROWS][COLUMNS];
int i2 = sizeof(matrix[0]);//i2 == 240 == COLUMNS * sizeof(double)
}
Here is an example of a pointer to a 2 dime...
What is Rack middleware?
...-19 22:39:26] INFO WEBrick::HTTPServer#start: pid=16121 port=9292
Let's test our new JSON server by either curling or visiting the url http://localhost:9292/hello.json and voila:
$ curl http://localhost:9292/hello.json
{ message: "Hello!" }
It works. Great! That's the basis for every web frame...
Is main() really start of a C++ program?
...t doesn't affect program semantics, such as startup performance comparison testing.
– ThomasMcLeod
Jan 24 '11 at 19:21
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show 4 more comment...
Are Exceptions in C++ really slow
...red around memory, and complex operations to run (basically a dynamic_cast test for each handler)
So, mostly cache misses, and thus not trivial compared to pure CPU code.
Note: for more details, read the TR18015 report, chapter 5.4 Exception Handling (pdf)
So, yes, exceptions are slow on the exc...
Output of git branch in tree like fashion
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Tested on Ubuntu:
sudo apt install git-extras
git-show-tree
This produces an effect similar to the 2 most upvoted answers here.
Source: http://manpages.ubuntu.com/manpages/bionic/man1/git-show-tree.1.html
Also, if you...
PHP: Move associative array element to beginning of array
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@andrewtweber No, I don't, but I did some testing and found that, compared to Emil's approach, it is 3x faster and takes half as much memory. I also found that it takes 20% more time than moving the same element to the end of the array.
– Mark E...
Android: How to stretch an image to the screen width while maintaining aspect ratio?
...another subclassed workaround, but you should (in theory, I haven't really tested it much!) be able to use it anywhere you ImageView. To use it set layout_width="match_parent", and layout_height="wrap_content". It is quite a lot more general than the accepted solution too. E.g. you can do fit-to-hei...
Count occurrences of a char in plain text file
...e and customize, this is about three times (sorry, edit! botched the first test) faster than Vereb's answer.
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