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What is the difference between a strongly typed language and a statically typed language?
..., in C you can take a value returned by malloc() and cheerfully cast it to FILE*, and the compiler won't try to stop you—or even warn you that you are doing anything dodgy.
(The original answer said something about a value "not changing type at run time". I have known many language designers and...
Is gcc 4.8 or earlier buggy about regular expressions?
... changing for GCC 7, but theoretically they could do for GCC 8+, so please file an enhancement request at gcc.gnu.org/bugzilla asking for something like _GLIBCXX_REGEX_IS_OK_NOW_KTHXBAI in the headers, so it doesn't get forgotten - thanks!
– Jonathan Wakely
Dec...
What's the difference between event.stopPropagation and event.preventDefault?
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Hope these examples are clear. Try executing all these examples in a html file to see how they work.
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When to use the brace-enclosed initializer?
...object, use parentheses. Examples are the size argument of a vector or the file name argument of an fstream.
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What does OSGi solve?
...all - The OSGi Release 4 Framework can be implemented in about a 300KB JAR file. This is a small overhead for the amount of functionality that is added to an application by including OSGi. OSGi therefore runs on a large range of devices: from very small, to small, to mainframes. It only asks for a m...
What do
...first < second) first else second
It's ok to instantiate, say, a Pair[File], as long as you don't call smaller on it.
In the case of Option, the implementors wanted an orNull method, even though it doesn't make sense for Option[Int]. By using a type constraint, all is well. You can use orNull ...
List of Delphi language features and version in which they were introduced/deprecated
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The jedi.inc file used by the Dephi JEDI project exposes a series of feature defines. If your project is MPL-compatible, you could even use it for feature detection and save yourself the trouble of reinventing that particular wheel.
For ...
Creating a singleton in Python
...eton import my_singleton
my_singleton.foo()
where mysingleton.py is your filename that My_Singleton is defined in. This works because after the first time a file is imported, Python doesn't re-execute the code.
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How exactly do Django content types work?
...lass Song(models.Model):
'''
A song which can be commented on.
'''
file = models.FileField()
author = models.ForeignKey(User)
title = models.CharField(max_length=75)
slug = models.SlugField(unique=True)
description = models.TextField(blank=True)
comments = GenericRelation(Comment)
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How to pass objects to functions in C++?
...e what happens to a variable in a function, you have to examine the header files of all the function's it's passed to to determine if it's changed. This way, you only have to look at the ones it was passed via pointer.
– smehmood
Mar 4 '11 at 7:20
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