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Purpose of memory alignment
...y you have a struct in memory that looks like this:
struct mystruct {
char c; // one byte
int i; // four bytes
short s; // two bytes
}
On a 32-bit processor it would most likely be aligned like shown here:
The processor can read each of these members in one transaction.
Say you...
What characters are forbidden in Windows and Linux directory names?
...
A “comprehensive guide” of forbidden filename characters is not going to work on Windows because it reserves filenames as well as characters. Yes, characters like
* " ? and others are forbidden, but there are a infinite number of names composed only of valid characters t...
What does the * * CSS selector do?
...
Just like any other time you put two selectors one after another (for example li a), you get the descendant combinator. So * * is any element that is a descendant of any other element — in other words, any element that isn't the root element of the whole docum...
Sorting an IList in C#
...rty, I believe you could sort as follows:
from c in list
orderby c.Engine
select c;
Edit: You do need to be quick to get answers in here. As I presented a slightly different syntax to the other answers, I will leave my answer - however, the other answers presented are equally valid.
...
Eager load polymorphic
...edTable error ( tested in Rails 3, not 4 ) because the association will do SELECT FROM shops WHERE shop.id = 1 AND ( reviews.review_type = 'Shop' ).
The :include option will force a JOIN instead. :)
share
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How do I get currency exchange rates via an API such as Google Finance? [closed]
... require any kind of sign up.
[http://query.yahooapis.com/v1/public/yql?q=select * from yahoo.finance.xchange where pair in ("USDEUR", "USDJPY", "USDBGN", "USDCZK", "USDDKK", "USDGBP", "USDHUF", "USDLTL", "USDLVL", "USDPLN", "USDRON", "USDSEK", "USDCHF", "USDNOK", "USDHRK", "USDRUB", "USDTRY", "USD...
How to change column datatype in SQL database without losing data
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Alter column data type with check type of column :
IF EXISTS(
SELECT 1
FROM sys.columns
WHERE NAME = 'YourColumnName'
AND [object_id] = OBJECT_ID('dbo.YourTable')
AND TYPE_NAME(system_type_id) = 'int'
)
ALTER TABLE dbo.YourTable ALTER ...
How can I add a third button to an Android Alert Dialog?
...'which' argument contains the index position
// of the selected item
switch (which) {
case 0:
Toast.makeText(context, "clicked 1", 0).show();
break;
case 1:...
MySQL load NULL values from CSV data
...can see empty strings '' when they download a csv (using IFNULL(Col,'') in SELECT INTO OUTFILE query) for excel but then uploads accept them as null vs having to deal with \N in the csv. Thanks!
– chrisan
Sep 29 '13 at 15:47
...
How to paginate with Mongoose in Node.js?
... perPage = 10
, page = Math.max(0, req.param('page'))
Event.find()
.select('name')
.limit(perPage)
.skip(perPage * page)
.sort({
name: 'asc'
})
.exec(function(err, events) {
Event.count().exec(function(err, count) {
res.render('events', {
...