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How bad is shadowing names defined in outer scopes?
... the warnings and hints it provides me to improve my code. Except for this one which I don't understand:
8 Answers
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What's the difference between UTF-8 and UTF-8 without BOM?
...UTF-8 BOM that wasn't UTF-8 (it was CP936). What's unfortunate is that the ones responsible for the immense amount of pain cause by the UTF-8 BOM are largely oblivious to it.
– bames53
Jan 16 '14 at 23:21
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What does an exclamation mark mean in the Swift language?
...This enum describes whether the variable holds a value (Some(T)), or not (None).
If there is a value, this can be obtained by "unwrapping" the variable (obtaining the T from Some(T)).
How is john!.apartment = number73 different from john.apartment = number73? (Paraphrased)
If you write the n...
Declaring a custom android UI element using XML
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The Android Developer Guide has a section called Building Custom Components. Unfortunately, the discussion of XML attributes only covers declaring the control inside the layout file and not actually handling the values inside the class initialisation. The steps are as follows:
1. Declare attr...
What is the correct file extension for GLSL shaders? [closed]
...ondering if there is a standard file format, or which way is the 'correct' one?
6 Answers
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Difference between java.util.Random and java.security.SecureRandom
...), from a comment on the method protected int next(int bits), which is the one that generates the random values:
This is a linear congruential pseudorandom number generator, as
defined by D. H. Lehmer and described by Donald E. Knuth in
The Art of Computer Programming, Volume 3:
Semi...
javac option to compile all java files under a given directory recursively
...e sources.txt file each time you create a new source or rename an existing one file which is an easy to forget (thus error-prone) and tiresome task.
Using a build tool
On the long run it is better to use a tool that was designed to build software.
Using Ant
If you create a simple build.xml file tha...
How to save picture to iPhone photo library?
...sibly from the camera, possibly not) to the system photo library on the iPhone?
15 Answers
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PHP String to Float
... floats is a non trivial task. In the English/American notation you format one thousand plus 46*10-2:
1,000.46
But in Germany you would change comma and point:
1.000,46
This makes it really hard guessing the right number in multi-language applications.
I strongly suggest using Zend_Measure of...
How to detect if a script is being sourced
...that holds a stack trace of sources, where ${BASH_SOURCE[0]} is the latest one. The braces are used here to tell the bash what is part of the variable name. They are not necessary for $0 in this case, but they do not hurt either. ;)
– Konrad
Jan 22 '16 at 17:23...