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Expand a random range from 1–5 to 1–7
... big, very fast. Powers of 5 and 7 grow quickly. Hence, performance will start to degrade noticeably after generating lots of random numbers, due to bignum arithmetic. But remember here, my goal was to maximize the usage of random bits, not to maximize performance (although that is a secondary go...
Simple example of threading in C++
Can someone post a simple example of starting two (Object Oriented) threads in C++.
7 Answers
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Match whole string
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Use the start and end delimiters: ^abc$
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Specify format for input arguments argparse python
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Then use that as type:
parser.add_argument("-s",
"--startdate",
help="The Start Date - format YYYY-MM-DD",
required=True,
type=valid_date)
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Convert string in base64 to image and save on filesystem in Python
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Starting with
img_data = b'iVBORw0KGgoAAAANSUhEUgAABoIAAAaCCAYAAAABZu+EAAAqOElEQVR42uzBAQEAAACAkP6v7ggK\nAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\nAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...
Compelling examples of custom C++ allocators?
...custom allocator
(which derives from std::allocator), I think it is a good starting
point to write own allocators. Feel free to use this piece of code
in whatever way you want:
#include <memory>
#include <stdio.h>
namespace mmap_allocator_namespace
{
// See StackOverflow repli...
Loading/Downloading image from URL on Swift
...ionHandler: completion).resume()
}
Create a method to download the image (start the task)
func downloadImage(from url: URL) {
print("Download Started")
getData(from: url) { data, response, error in
guard let data = data, error == nil else { return }
print(response?.suggested...
How do I shutdown, restart, or log off Windows via a bat file?
... a workstation. But in this environment, I cannot use the power options in Start Menu. I need an alternative way to shutdown or restart.
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Why does HTML think “chucknorris” is a color?
...[RGB(192, 192, 0)]
Which gives a light yellow gold colour. As the string starts off as 9 characters, we keep the second C this time around hence it ends up in the final colour value.
I originally encountered this when someone pointed out you could do color="crap" and, well, it comes out brown.
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What's the difference between Spring Data's MongoTemplate and MongoRepository?
... which I can do complex queries using spring-data and mongodb. I have been starting by using the MongoRepository but struggled with complex queries to find examples or to actually understand the Syntax.
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