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Inheriting class methods from modules / mixins in Ruby
...e of methods. To support these things, you can give class_eval a heredoc (string) instead of a block: base.class_eval <<-'END'
– Paul Donohue
May 15 at 15:10
add a comm...
What exactly is a C pointer if not a memory address?
...y a real memory address. This ID could be anything, even a fixed-size text string. Non-address representations may be especially useful for a C interpreter.
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What is polymorphism, what is it for, and how is it used?
...reach (Vehicle v in vehicles)
{
Console.WriteLine(
string.Format("A {0} has {1} wheels.",
v.GetType().Name, v.Wheels));
}
}
In this example, we create a list of the base class Vehicle, which does not know about how many wheels each of its sub-classes has...
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar
...e saved state of the search UI if a memory warning removed the view.
NSString *savedSearchTerm_;
NSInteger savedScopeButtonIndex_;
BOOL searchWasActive_;
}
@property (nonatomic, retain) NSManagedObjectContext *managedObjectContext;
@property (nonatomic, retain, re...
What GRANT USAGE ON SCHEMA exactly do?
... webapp
# * you have to change '$ROLE_LOCAL', '$ROLE_REMOTE' and '$DB'
# strings with your desired names
# * it's preferable that $ROLE_LOCAL == $DB
#-------------------------------------------------------------------------------
//----------- SKIP THIS PART UNTIL POSTGRES JDBC ADDS SCRAM - STAR...
Using std Namespace
...
Most C++ users are quite happy reading std::string, std::vector, etc. In fact, seeing a raw vector makes me wonder if this is the std::vector or a different user-defined vector.
I am always against using using namespace std;. It imports all sorts of names into the glo...
What is the difference between native code, machine code and assembly code?
...ase configuration with JIT optimization enabled:
static void Main(string[] args) {
Console.WriteLine("Hello world");
00000000 55 push ebp ; save stack frame pointer
00000001 8B EC mov ebp,esp ...
how to ignore namespaces with XPath
... = false on a XmlTextReader
[TestMethod]
public void MyTestMethod()
{
string _withXmlns = @"<?xml version=""1.0"" encoding=""utf-8""?>
<ParentTag xmlns=""http://anyNamespace.com"">
<Identification value=""ID123456"" />
</ParentTag>
";
var xmlReader = new XmlTextRead...
How does Access-Control-Allow-Origin header work?
...that'll work, that'll let everybody in. Or if the server always sends the string from the Origin: header... but... for security, if you're afraid of hackers, your server should only allow origins on a shortlist, that are allowed to make those requests.
Then, MyCode.js comes from siteA. When it ma...
Hosting a Maven repository on github
...rror creating commit: Invalid request. For 'properties/name', nil is not a string.'), make sure you state a name in your profile on github.
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