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Objective-C parse hex string to integer
...ng a number, in Objective-C. I am willing to use both an objective, or a C-based method, either is fine.
7 Answers
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How can I scale an image in a CSS sprite
...ground-position -<x*100>% -<y*100>% where x and y are the zero based sprite
In other words if you want the 3rd sprite from the left and 2nd row that's 2 over and 1 down so
background-position: -200% -100%;
For example here's a sprite sheet 4x2 sprites
And here's an example
di...
TCP: can two different sockets share a port?
..., unused high-order source port. This way, a single client can have up to ~64k connections to the server for the same destination port.
So, this is really what gets created when a client connects to a server:
Local Computer | Remote Computer | Role
-----------------------------...
Are string.Equals() and == operator really same? [duplicate]
...of the target object), whereas the implementation of == used is determined based on the compile-time types of the objects:
// Avoid getting confused by interning
object x = new StringBuilder("hello").ToString();
object y = new StringBuilder("hello").ToString();
if (x.Equals(y)) // Yes
// The compi...
How do you use https / SSL on localhost?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Quickly find whether a value is present in a C array?
...ion. It can be modified to run in a fixed number of cycles to avoid timing-based forensics if the location of the value is sensitive information.
– OregonTrail
Sep 5 '14 at 16:17
1...
How to request Administrator access inside a batch file
...This script is now slightly edited to support command line arguments and a 64 bit OS.
Thank you Eneerge @ https://sites.google.com/site/eneerge/scripts/batchgotadmin
@echo off
:: BatchGotAdmin
:-------------------------------------
REM --> Check for permissions
IF "%PROCESSOR_ARCHITECTURE...
Convert .pem to .crt and .key
... format. The PEM form is the default format: it consists of the DER format base64 encoded with additional header and footer lines. On input PKCS#8 format private keys are also accepted. The NET form is a format is described in the NOTES section.
-outform DER|NET|PEM
This specifies the output ...
Why do stacks typically grow downwards?
... written, so that it would know the actual RAM installed (e.g., a z80 with 64K address space didn't necessarily have 64K or RAM, in fact 64K would have been massive in my early days). Once it found the top actual address, it would set the stack pointer appropriately and could then start calling subr...
How to extract text from a PDF? [closed]
...hat I had to import - luckily no images. Ghostscript worked for me:
gswin64c -sDEVICE=txtwrite -o output.txt input.pdf
The output file was split into pages with headers, etc., but it was then easy to write an app to strip out blank lines, etc, and suck in all 30,000 records. -dSIMPLE and -dCOMPLE...