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What is the most effective way for float and double comparison?
....
//
// See the following article for more details on ULP:
// http://www.cygnus-software.com/papers/comparingfloats/comparingfloats.htm.
static const size_t kMaxUlps = 4;
// Constructs a FloatingPoint from a raw floating-point number.
//
// On an Intel CPU, passing a non-normalized NA...
Do sessions really violate RESTfulness?
...tication (using HTTP 401 would be incorrect as we probably wouldn't supply Www-Authenticate to a client, as HTTP specs require :) ). It should also be noted that Set-Cookie is only a recommendation for client. Its contents may be or may not be saved (for example, if cookies are disabled), while Auth...
What are the effects of exceptions on performance in Java?
...st too long to post here. So let me summarize here and refer you to http://www.fuwjax.com/how-slow-are-java-exceptions/ for the gritty details.
The real question here is not "How slow are 'failures reported as exceptions' compared to 'code that never fails'?" as the accepted response might have you...
How to strip HTML tags from a string in SQL Server?
...lt;li>
ALTER FUNCTION [dbo].[udf_StripHTML]
--by Patrick Honorez --- www.idevlop.com
--inspired by http://stackoverflow.com/questions/457701/best-way-to-strip-html-tags-from-a-string-in-sql-server/39253602#39253602
(
@HTMLText varchar(MAX)
)
RETURNS varchar(MAX)
AS
BEGIN
DECLARE @Start int
DE...
Why do we need RESTful Web Services?
...eginner but this is the best link to start with REST from scratch! http://www.codeproject.com/Articles/21174/Everything-About-REST-Web-Services-What-and-How-Pa
Just to pull you in,
Think of what a "traditional web service" is. It is an interface with
exposed "methods." Clients know the metho...
What are the most interesting equivalences arising from the Curry-Howard Isomorphism?
...ut extensions of C-H:
"A Judgmental Reconstruction of Modal Logic" http://www.cs.cmu.edu/~fp/papers/mscs00.pdf - this is a great place to start because it starts from first principles and much of it is aimed to be accessible to non-logicians/language theorists. (I'm the second author though, so I'...
How to allocate aligned memory only using the standard library?
...nction is now a part of the C11 specification: open-std.org/jtc1/sc22/wg14/www/docs/n1516.pdf (page 346)
– skagedal
Sep 5 '13 at 22:15
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how to draw smooth curve through N points using javascript HTML5 canvas?
...through all the sample points, but it is much more complicated (see http://www.cartogrammar.com/blog/actionscript-curves-update/)
Here is the the drawing code for the approximation method:
// move to the first point
ctx.moveTo(points[0].x, points[0].y);
for (i = 1; i < points.length - 2...
Secure hash and salt for PHP passwords
...s as suggested in first answer.
More explanation is available at- http://www.pivotalsecurity.com/blog/password-hashing-salt-should-it-be-random/
Recently I had a discussion whether password hashes salted with random
bits are more secure than the one salted with guessable or known
salts. Le...
counting number of directories in a specific directory
... -c ^d
11
$ ls -l .vim
total 52
drwxrwxr-x 3 anossovp anossovp 4096 Aug 29 2012 after
drwxrwxr-x 2 anossovp anossovp 4096 Aug 29 2012 autoload
drwxrwxr-x 13 anossovp anossovp 4096 Aug 29 2012 bundle
drwxrwxr-x 2 anossovp anossovp 4096 Aug 29 2012 colors
drwxrwxr-x 2 anossovp anossovp 4096 ...