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Creating a new directory in C
... directory; if that directory does not exist then it creates the directory and a log file inside of it, but if the directory already exists, then it just creates a new log file in that folder.
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Android: Bitmaps loaded from gallery are rotated in ImageView
...zontal picture even though it appears vertical in the gallery.
Why is that and how can I load it correctly?
19 Answers
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Multi-line strings in PHP
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PHP has Heredoc and Nowdoc strings, which are the best way to handle multiline strings in PHP.
http://php.net/manual/en/language.types.string.php#language.types.string.syntax.heredoc
$str = <<<EOD
Example of string
spanning multip...
Instantiate and Present a viewController in Swift
I started taking a look of the new Swift on Xcode 6 , and I tried some demo projects and tutorials. Now I am stuck at:
1...
How do I Moq a method that has an optional argument in its signature without explicitly specifying i
...e changes the default value of b to true? This will lead to failing tests (and rightfully so), but they will be more difficult to fix because of the hidden assumption that b is false. Explicitly specifying the bool parameter has another benefit: it improves the readability of your tests. Someone goi...
Breaking a list into multiple columns in Latex
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Using the multicol package and embedding your list in a multicols environment does what you want:
\documentclass{article}
\usepackage{multicol}
\begin{document}
\begin{multicols}{2}
\begin{enumerate}
\item a
\item b
\item c
\item d
...
How to override to_json in Rails?
...def to_json(options)
...
end
Longer explanation of to_json, as_json, and rendering:
In ActiveSupport 2.3.3, as_json was added to address issues like the one you have encountered. The creation of the json should be separate from the rendering of the json.
Now, anytime to_json is called on an ...
Change Default Scrolling Behavior of UITableView Section Header
... 0 header height, you'll see that finger-feel is affected (try like "1000" and you'll see the bounce behaviour is sort of weird at the top). if the number matches your section 0 header height, finger feel seems to be either perfect or near-perfect.}
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psql invalid command \N while restore sql
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Postgres uses "\N" as substitute symbol for NULL value. But all psql commands starts by backslash "\" symbol. So you can get this messages, when probably copy statement fails, but a loading of dump continues. This message is only false alarm. You have to search a lines before for reason why COPY s...
What are the different usecases of PNG vs. GIF vs. JPEG vs. SVG?
...a few key factors...
First, there are two types of compression: Lossless and Lossy.
Lossless means that the image is made smaller, but at no detriment to the quality.
Lossy means the image is made (even) smaller, but at a detriment to the quality. If you saved an image in a Lossy format over a...