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Setup RSpec to test a gem (not Rails)
...nt?
I am not using jeweler or such tools. I just used Bundler ( bundle gem my_gem ) to setup the structure for the new gem and edit the *.gemspec manually.
I also added s.add_development_dependency "rspec", ">= 2.0.0" to gemspec and did a bundle install .
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How do you calculate log base 2 in Java for integers?
... to. For example, Math.ceil(Math.log(1<<29) / Math.log(2)) is 30 on my PC where mathematically it should be exactly 29. I didn't find a value for x where (int)(Math.log(x)/Math.log(2)) fails (just because there are only 32 "dangerous" values), but it does not mean that it will work the same w...
In PowerShell, how do I define a function in a file and call it from the PowerShell commandline?
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Try this on the PowerShell command line:
. .\MyFunctions.ps1
A1
The dot operator is used for script include.
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Jaxb, Class has two properties of the same name
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just added this to my class
@XmlAccessorType(XmlAccessType.FIELD)
worked like a cham
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How to find all combinations of coins when given some dollar value
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I looked into this once a long time ago, and you can read my little write-up on it. Here’s the Mathematica source.
By using generating functions, you can get a closed-form constant-time solution to the problem. Graham, Knuth, and Patashnik’s Concrete Mathematics is the book for...
Is it alright to use target=“_blank” in HTML5?
... site). I often want to jump back and forth between the two without losing my place in the original article. target="_blank" is perfect for this. Leaving the page and having to alternately reload each page (often losing my place in either page), is not. Yes, I know that I can right-click on the lin...
Eclipse “Invalid Project Description” when creating new project from existing source
...d everything like cleaning and restarting, but nothing worked. I looked in my workspace directory, but there are no traces for the old project.
There are several questions around this problem such as this Attempting Android Notepad Tutorial - Exercise 1 - More problems , but none of the answers wor...
How to convert int to QString?
...ply do:
// Qt 5 + C++11
auto i = 13;
auto printable = QStringLiteral("My magic number is %1. That's all!").arg(i);
// Qt 5
int i = 13;
QString printable = QStringLiteral("My magic number is %1. That's all!").arg(i);
// Qt 4
int i = 13;
QString printable = QString::fromLatin1("My magic...
Cannot read configuration file due to insufficient permissions
I've recently encountered an error trying to host my asp.net site with IIS. I have found a solution that many swear by.
40...
How to detect total available/free disk space on the iPhone/iPad device?
...se check the updated answers below for Swift etc; Since I've not used them myself, I can't vouch for them.
Original answer:
I found the following solution working for me:
-(uint64_t)getFreeDiskspace {
uint64_t totalSpace = 0;
uint64_t totalFreeSpace = 0;
NSError *error = nil;
NSA...