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Does async(launch::async) in C++11 make thread pools obsolete for avoiding expensive thread creation
...for creating a thread to handle a function call is something like 10000 or more times slower than a plain function call. So, if you're issuing a lot of small function calls, a thread pool might be a good idea.
It's quite apparent that the standard C++ library that ships with g++ doesn't have thread...
How to determine MIME type of file in android?
...3 didn't just write ID3 in the beginning of his text to mess with you even more.
– Jens
Nov 25 '12 at 14:49
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How to toggle a value in Python
... A else A
>>> x
[4, 5, 6]
Solution using itertools
If you have more than two values, the itertools.cycle() function provides a generic fast way to toggle between successive values:
>>> import itertools
>>> toggle = itertools.cycle(['red', 'green', 'blue']).next
>&gt...
What is a Java ClassLoader?
... a general class path as well as your application classes.
Since there is more than one class loader, they are represented in a tree whose root is the bootstrap class loader. Each class loader has a reference to its parent class loader. When a class loader is asked to load a class, it consults its ...
Store password in TortoiseHg
...ld never store plaintext passwords in ANY file...!! The other option (with more votes) using mercurial_keyring is the only right thing to do!
– Lars Corneliussen
Oct 27 '11 at 19:04
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How to output a multiline string in Bash?
...n this page, I created a mixed approach, which I consider the simplest and more flexible one. What do you think?
First, I define the usage in a variable, which allows me to reuse it in different contexts. The format is very simple, almost WYSIWYG, without the need to add any control characters. Thi...
Java recursive Fibonacci sequence
...ry wrong.
The problem is that the it calls fibonacci not 50 times but much more.
At first it calls fibonacci(49)+fibonacci(48),
next fibonacci(48)+fibonacci(47) and fibonacci(47)+fibonacci(46)
Each time it became fibonacci(n) worse, so the complexity is exponential.
The approach to non-recursive ...
How do I programmatically force an onchange event on an input?
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Checkout old commit and make it a new commit [duplicate]
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this works but I feel like there should be a more elegant way to do this.
– Gabriel Southern
Apr 10 '12 at 22:16
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How to test if a string is JSON or not?
...ate that tests if the JSON represents an object you'll need to do a little more.
– Michael Lang
Nov 18 '15 at 23:15
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