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Convert Decimal to Double
...casts, while C# has both implicit and explicit ones.
In C# the conversion from decimal to double is explicit as you lose accuracy. For instance 1.1 can't be accurately expressed as a double, but can as a decimal (see "Floating point numbers - more inaccurate than you think" for the reason why).
In...
What is the easiest way to initialize a std::vector with hardcoded elements?
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If "list-initialization of an aggregate from an object of the same type" is your thing, probably there are bigger problems in your codebase... I can think of no application where it would justify the debugging problems.
– Adam Erickson
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how to get the current working directory's absolute path from irb
...do is get the current working directory's absolute path. Is this possible from irb? Apparently from a script it's possible using File.expand_path(__FILE__)
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How do I calculate square root in Python?
... If you want your Python 2.x code to behave like 3.x w.r.t. division write from __future__ import division - then 1/2 will evaluate to 0.5 and for backwards compatibility, 1//2 will evaluate to 0.
And for the record, the preferred way to calculate a square root is this:
import math
math.sqrt(x)
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How to hash a password
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UPDATE: THIS ANSWER IS SERIOUSLY OUTDATED. Please use the recommendations from the https://stackoverflow.com/a/10402129/251311 instead.
You can either use
var md5 = new MD5CryptoServiceProvider();
var md5data = md5.ComputeHash(data);
or
var sha1 = new SHA1CryptoServiceProvider();
var sha1data ...
When should you use constexpr capability in C++11?
...t. Compile time evaluation is a neat optimization, but what you really get from constexpr is a guarantee of some kind of behavior. Just like const does.
– Tomáš Zato - Reinstate Monica
Mar 14 '19 at 10:09
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Safely casting long to int in Java
What's the most idiomatic way in Java to verify that a cast from long to int does not lose any information?
10 Answers
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deny directory listing with htaccess
...hought -Indexes disabled directory listings, instead it blocks all content from the folder ... Does anyone know why?
– Michael Fever
Mar 5 '15 at 16:04
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Dealing with “java.lang.OutOfMemoryError: PermGen space” error
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On tomcat 6.0.29 startup, from my catalina.out logfile: "Please use CMSClassUnloadingEnabled in place of CMSPermGenSweepingEnabled in the future"
– knb
Jul 27 '11 at 11:59
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How to get current date in jquery?
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d.getMonth() Returns the month (from 0-11) so it may be wrong
– Gaurav Agrawal
Dec 6 '11 at 11:23
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