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Purpose of ESI & EDI registers?
...
There are a few operations you can only do with DI/SI (or their extended counterparts, if you didn't learn ASM in 1985). Among these are
REP STOSB
REP MOVSB
REP SCASB
Which are, respectively, operations for repeated (= mass) storing, loading and scanning. What y...
B-Tree vs Hash Table
...scaling can be inefficient.
There are indeed scalable hashing algorithms. Don't ask me how that works - its a mystery to me too. AFAIK they evolved from scalable replication where re-hashing is not easy.
Its called RUSH - Replication Under Scalable Hashing, and those algorithms are thus called RUSH...
Why would adding a method add an ambiguous call, if it wouldn't be involved in the ambiguity
...e found a bug in overload resolution. The bug reproduces in C# 4 and 5; it does not reproduce in the "Roslyn" version of the semantic analyzer. I've informed the C# 5 test team, and hopefully we can get this investigated and resolved before the final release. (As always, no promises.)
A correct ana...
Image comparison - fast algorithm
... the hardest to implement.
Keypoint Matching
Better than picking 100 random points is picking 100 important points. Certain parts of an image have more information than others (particularly at edges and corners), and these are the ones you'll want to use for smart image matching. Google "keypoi...
Why Does OAuth v2 Have Both Access and Refresh Tokens?
...n is compromised, because it is short-lived, the attacker has a limited window in which to abuse it.
Refresh tokens, if compromised, are useless because the attacker requires the client id and secret in addition to the refresh token in order to gain an access token.
Having said that, because every...
How can I know if a process is running?
...
This is a way to do it with the name:
Process[] pname = Process.GetProcessesByName("notepad");
if (pname.Length == 0)
MessageBox.Show("nothing");
else
MessageBox.Show("run");
You can loop all process to get the ID for later manipulatio...
Difference between if () { } and if () : endif;
... are the same but the second one is great if you have MVC in your code and don't want to have a lot of echos in your code. For example, in my .phtml files (Zend Framework) I will write something like this:
<?php if($this->value): ?>
Hello
<?php elseif($this->asd): ?>
Your name is:...
How to programmatically determine the current checked out Git branch [duplicate]
...rect solution is to take a peek at contrib/completions/git-completion.bash does that for bash prompt in __git_ps1. Removing all extras like selecting how to describe detached HEAD situation, i.e. when we are on unnamed branch, it is:
branch_name="$(git symbolic-ref HEAD 2>/dev/null)" ||
branch_...
PHP how to get local IP of system
...hat I wanted, because my servers are behind a load balancer so getHostName doesn't return the sites domain name.
– Yep_It's_Me
May 2 '18 at 2:29
...
How to 'grep' a continuous stream?
...eBSD, Mac OS X etc.)
tail -f file | grep --line-buffered my_pattern
You don't need to do this for GNU grep (used on pretty much any Linux) as it will flush by default (YMMV for other Unix-likes such as SmartOS, AIX or QNX).
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