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Purpose of ESI & EDI registers?
..., they are useful for their property of being preserved through a function call (call-preserved) in 32-bit calling convention. The ESI, EDI, EBX, EBP, ESP are call-preserved whereas EAX, ECX and EDX are not call-preserved. Call-preserved registers are respected by C library function and their values...
Get the name of the currently executing method
...bol – for example, :test_method. To return the method name as a string, call __method__.to_s instead.
Note: This requires Ruby 1.8.7.
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Tab Vs Space preferences in Vim
...s.
" put all this in your .vimrc or a plugin file
command! -nargs=* Stab call Stab()
function! Stab()
let l:tabstop = 1 * input('set shiftwidth=')
if l:tabstop > 0
" do we want expandtab as well?
let l:expandtab = confirm('set expandtab?', "&Yes\n&No\n&Cancel")
if l...
Difference between shadowing and overriding in C#?
...adow
public override int Bar() {return 1;} //override
}
then when you call this:
A clA = new A();
B clB = new B();
Console.WriteLine(clA.Foo()); // output 5
Console.WriteLine(clA.Bar()); // output 5
Console.WriteLine(clB.Foo()); // output 1
Console.WriteLine(clB.Bar()); // output 1
//now let...
Alter column, add default constraint
...the stored procedure below to update the defaults on a column.
It automatically removes any prior defaults on the column, before adding the new default.
Examples of usage:
-- Update default to be a date.
exec [dbo].[AlterDefaultForColumn] '[dbo].[TableName]','Column','getdate()';
-- Update defaul...
Django rest framework nested self-referential objects
...
Edit: Note that there is now a third-party package available that specifically deals with this kind of use-case. See djangorestframework-recursive.
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Get color value programmatically when it's a reference (theme)
...pedValue.data;
Also make sure to apply the theme to your Activity before calling this code. Either use:
android:theme="@style/Theme.BlueTheme"
in your manifest or call (before you call setContentView(int)):
setTheme(R.style.Theme_BlueTheme)
in onCreate().
I've tested it with your values an...
How to define a custom ORDER BY order in mySQL
...
MySQL has a handy function called FIELD() which is excellent for tasks like this.
ORDER BY FIELD(Language,'ENU','JPN','DAN'), ID
Note however, that
It makes your SQL less portable, as other DBMSs might not have such function
When your list of langu...
Change URL and redirect using jQuery
...es the current location in the address bar by a new one. The page that was calling the function, won't be included in the browser history. Therefore, on the new location, clicking the back button in your browser would make you go back to the page you were viewing before you visited the document cont...
How to call any method asynchronously in c#
...d someone please show me a small snippet of code which demonstrates how to call a method asynchronously in c#?
5 Answers
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