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How do I get Windows to go as fast as Linux for compiling C++?
...lookup times, with a btree structure. In Linux (last I looked), an app can read an entire folder with a single system call, and iterate through the resulting structure entirely in user code; Windows requires a separate sys call for each file. Either way, compilers shouldn't need to read the entire f...
Pip freeze vs. pip list
...pecify ==1.4.2, the latest version available would be installed.
You can read more in "Virtualenv and pip Basics",
and the official "Requirements File Format" documentation.
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What should my Objective-C singleton look like? [closed]
...s is not used.) The runtime sends the initialize message to classes in a thread-safe manner. Superclasses receive this message before their subclasses.
So you could do something akin to this:
static MySingleton *sharedSingleton;
+ (void)initialize
{
static BOOL initialized = NO;
if(!init...
How can I make an svg scale with its parent container?
...ponsive designs.
Here is an image of these settings being used:
If you read every solution in this question and are still confused or don't quite see what you need, check out this link here. I found it very helpful:
https://css-tricks.com/scale-svg/
It's a massive article, but it breaks down p...
Can “git pull --all” update all my local branches?
...years old, but I asked myself the very same question and did not found any ready made solution. So, I created a custom git command shell script my self.
Here it goes, the git-ffwd-update script does the following...
it issues a git remote update to fetch the lates revs
then uses git remote show ...
Where should signal handlers live in a django project?
...e of the application they relate to. Signal receivers are connected in the ready() method of your application configuration class. If you’re using the receiver() decorator, simply import the signals submodule inside ready().
Changed in Django 1.7: Since ready() didn’t exist in previous vers...
in iPhone App How to detect the screen resolution of the device
...iplying by the screen's scale you get the actual pixel resolution.
A good read on the difference between points and pixels in iOS can be read here.
EDIT: (Version for Swift)
let screenBounds = UIScreen.main.bounds
let screenScale = UIScreen.main.scale
let screenSize = CGSize(width: screenBounds.s...
Why can a class not be defined as protected?
... package-private which is similar to defining it as default which we can already do.
Therefore there is no benefit of defining a class private it will only make things ambiguous.
For more information read Why an outer Java class can’t be private or protected
...
How to redirect output of an already running process [duplicate]
...gs are not usable from GDB (it doesn’t use C headers) so I would have to read header files to discover this – it’s not that hard to do so but would take more time. Note that 0600 is the octal permission for the owner having read/write access and the group and others having no access. It would ...
What are the calling conventions for UNIX & Linux system calls (and user-space functions) on i386 an
...
Further reading for any of the topics here: The Definitive Guide to Linux System Calls
I verified these using GNU Assembler (gas) on Linux.
Kernel Interface
x86-32 aka i386 Linux System Call convention:
In x86-32 parameters ...