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How to run a program without an operating system?
...res some extra hardware and software support, but on emulators it can be a free convenient option. Example.
Here we will do a BIOS example as it is simpler on x86. But note that it is not the most robust method.
main.S
.code16
mov $msg, %si
mov $0x0e, %ah
loop:
lodsb
or %al, %al
...
Is it possible to apply CSS to half of a character?
...
Now on GitHub as a Plugin!
Feel free to fork and improve.
Demo | Download Zip | Half-Style.com (Redirects to GitHub)
Pure CSS for a Single Character
JavaScript used for automation across text or multiple characters
Preserves Text Accessibility for scre...
How does PHP 'foreach' actually work?
... track of which array element you are currently at. If this element is now freed, you are left with a dangling pointer (usually resulting in a segfault).
There are different ways of solving this issue. PHP 5 and PHP 7 differ significantly in this regard and I'll describe both behaviors in the follo...
What is Node.js? [closed]
...figure out how screwed it really is).
Node.js is SINGLE THREADED and LOCK FREE. Node.js, as a very deliberate design choice only has a single thread per process. Because of this, it's fundamentally impossible for multiple threads to access data simultaneously. Thus, no locks are needed. Threads are...
Programmer Puzzle: Encoding a chess board state throughout a game
...mistake. See Chess punctuation.
Additionally you could also need to store free text as the moves are described.
I am assuming that the moves are sufficient so there will be no annotations.
Algebraic Notation
We could simply store the the text of the move here (“e4”, “Bxb5”, etc). Includi...
What are the underlying data structures used for Redis?
...r a char * that allows you to store the length of the string and number of free bytes as a prefix.
Because the length of the string is stored, strlen is an O(1) operation. Also, because the length is known, Redis strings are binary safe. It is perfectly legal for a string to contain the null charac...
data.table vs dplyr: can one do something well the other can't or does poorly?
...processing time. We optimise dplyr for expressiveness on medium data;
feel free to use data.table for raw speed on bigger data.
The flexibility of dplyr also means that you can easily tweak performance
characteristics using the same syntax. If the performance of dplyr with
the data frame backend is...
How do I pass a unique_ptr argument to a constructor or a function?
...library function.
If you take a unique_ptr by value, you can move from it freely. But movement doesn't actually happen because of std::move. Take the following statement:
std::unique_ptr<Base> newPtr(std::move(oldPtr));
This is really two statements:
std::unique_ptr<Base> &&...
Reference: mod_rewrite, URL rewriting and “pretty links” explained
... coming in on that port and returning a response. A web server is entirely free to respond to any request in any way it sees fit/in any way you have configured it to respond. This response is not a file, it's an HTTP response which may or may not have anything to do with physical files on any disk. ...
Ukkonen's suffix tree algorithm in plain English
...g sections may contain inaccuracies (or worse). If you encounter any, feel free to edit.
Prerequisites
The starting point of the following explanation assumes you're familiar with the content and use of suffix trees, and the characteristics of Ukkonen's algorithm, e.g. how you're extending the suf...