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Printing a variable memory address in swift
Is there anyway to simulate the [NSString stringWithFormat:@"%p", myVar] , from Objective-C, in the new Swift language?
15...
Why can't I assign a *Struct to an *Interface?
...nterface values are represented as a two-word pair giving a pointer
to information about the type stored in the interface and a pointer to
the associated data.
This is why Interface, and not *Interface is the correct type to hold a pointer to a struct implementing Interface.
So you must sim...
Use gulp to select and move directories and their files
...('move',['clean'], function(){
// the base option sets the relative root for the set of files,
// preserving the folder structure
gulp.src(filesToMove, { base: './' })
.pipe(gulp.dest('dist'));
});
Also, you are probably going to have trouble down the road if you have all these source fi...
Swift - Split string over multiple lines
...
Swift 4 includes support for multi-line string literals. In addition to newlines they can also contain unescaped quotes.
var text = """
This is some text
over multiple lines
"""
Older versions of Swift don't allow you to have a single ...
String, StringBuffer, and StringBuilder
...
Also, using String for logic operations is rather slow, and is not advised at all, since the JVM converts the String to a StringBuffer in the bytecode. A lot of overhead is wasted converting from String to StringBuffer and then back to String a...
How do I convert a Ruby class name to a underscore-delimited symbol?
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Rails comes with a method called underscore that will allow you to transform CamelCased strings into underscore_separated strings. So you might be able to do this:
FooBar.name.underscore.to_sym
But you will have to install ActiveSupport just to do that, as ipsum says.
If you don't want to ins...
What is a good Hash Function?
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For doing "normal" hash table lookups on basically any kind of data - this one by Paul Hsieh is the best I've ever used.
http://www.azillionmonkeys.com/qed/hash.html
If you care about cryptographically secure or anything el...
find -exec a shell function in Linux?
Is there a way to get find to execute a function I define in the shell? For example:
14 Answers
...
Changes in import statement python3
...ckage relative to the current script/package.
Consider the following tree for example:
mypkg
├── base.py
└── derived.py
Now, your derived.py requires something from base.py. In Python 2, you could do it like this (in derived.py):
from base import BaseThing
Python 3 no longer suppo...
Select first row in each GROUP BY group?
...
Informix 12.x also supports window functions (the CTE needs to be converted to a derived table though). And Firebird 3.0 will also support Window functions
– a_horse_with_no_name
Mar 14 '1...