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What is “2's Complement”?
...ourse and have been struggling , in part, with Two's Complement . I want to understand it but everything I've read hasn't brought the picture together for me. I've read the wikipedia article and various other articles, including my text book .
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How to cherry pick a range of commits and merge into another branch?
I have the following repository layout:
9 Answers
9
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Synchronization vs Lock
...ass called as Lock , which would basically serialize the control in order to access the critical resource. It gives method such as park() and unpark() .
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How do I uniquely identify computers visiting my web site?
I need to figure out a way uniquely identify each computer which visits the web site I am creating. Does anybody have any advice on how to achieve this?
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Why was the switch statement designed to need a break?
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Many answers seem to focus on the ability to fall through as the reason for requiring the break statement.
I believe it was simply a mistake, due largely because when C was designed there was not nearly as much experience with how these const...
How to Deal with Temporary NSManagedObject instances?
I need to create NSManagedObject instances, do some stuff with them and then trash them or store to sqlite db. The problem is, I cannot create instances of NSManagedObject unconnected to NSManagedObjectContext and this means I have to clear up somehow after I decide that I don't need some of ...
How to drop a PostgreSQL database if there are active connections to it?
I need to write a script that will drop a PostgreSQL database. There may be a lot of connections to it, but the script should ignore that.
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How to convert IPython notebooks to PDF and HTML?
I want to convert my ipython-notebooks to print them, or simply send them in html format. I have noticed that there exists a tool to do that already, nbconvert . Although I have downloaded it, I have no idea how to convert the notebook, with nbconvert2.py since nbconvert says that it is deprecated....
AngularJS: How can I pass variables between controllers?
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One way to share variables across multiple controllers is to create a service and inject it in any controller where you want to use it.
Simple service example:
angular.module('myApp', [])
.service('sharedProperties', function (...
PHP global in functions
... global keyword as well as everything else that reaches from a local scope to the global scope (statics, singletons, registries, constants). You do not want to use them. A function call should not have to rely on anything outside, e.g.
function fn()
{
global $foo; // never ever use...