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What is Bit Masking?
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Masking is the act of applying a mask to a value. This is accomplished by doing:
Bitwise ANDing in order to extract a subset of the bits in the value
Bitwise ORing in order to set a subset of the bits in the value
Bitwise XORing in order to toggle a subset of the bits in the value
Below is a...
Object of custom type as dictionary key
...urning Banana() is not recommended :)
User defined classes have __hash__ by default that calls id(self), as you noted.
There is some extra tips from the documentation.:
Classes which inherit a __hash__()
method from a parent class but change
the meaning of __cmp__() or __eq__()
such tha...
Lambda capture as const reference?
Is it possible to capture by const reference in a lambda expression?
8 Answers
8
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Where can I locate themes for VS2012
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As mentioned by ElYusubov below, this is more easily done via NuGet.
– David Yates
Jun 14 '13 at 15:11
add a comm...
Why did Rails4 drop support for “assets” group in the Gemfile
...n bundle exec rake assets:precompile
And why?
I found this in Guide:
By default Rails assumes that assets have been precompiled and will be
served as static assets by your web server.
(Source: http://edgeguides.rubyonrails.org/asset_pipeline.html#in-production)
But many time you have to u...
.Net HttpWebRequest.GetResponse() raises exception when http status code 400 (bad request) is return
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The contents of the stream returned by GetResponseStream() on the response attached to the WebException is just the name of the status code (e.g. "Bad Request") rather than the response actually returned by the server. Is there any way to get this information?
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How to Rotate a UIImage 90 degrees?
...ageOrientationUp (portrait) that I would like to rotate counter-clockwise by 90 degrees (to landscape). I don't want to use a CGAffineTransform . I want the pixels of the UIImage to actually shift position. I am using a block of code (shown below) originally intended to resize a UIImage to do ...
How do I convert a Vector of bytes (u8) to a string
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To convert a slice of bytes to a string slice (assuming a UTF-8 encoding):
use std::str;
//
// pub fn from_utf8(v: &[u8]) -> Result<&str, Utf8Error>
//
// Assuming buf: &[u8]
//
fn main() {
let buf = &[0x41u8, 0x41...
ruby send method passing multiple parameters
Trying to create objects and call methods dynamically by
2 Answers
2
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Why isn't sizeof for a struct equal to the sum of sizeof of each member?
... corrected in hardware, for a modest performance-degradation.
Or corrected by emulation in software, for a severe performance-degradation.
In addition, atomicity and other concurrency-guarantees might be broken, leading to subtle errors.
Here's an example using typical settings for an x86 process...