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Are the shift operators () arithmetic or logical in C?
...h may lead to implementation-defined behaviour if the value is not representable in the destination type.
Left Shift
The result of E1 << E2 is E1 left-shifted E2 bit positions; vacated bits are filled with zeros. If E1 has an unsigned type, the value of the result is E1×2E2, reduced modulo o...
How to create local notifications?
...eate a button in any view controller and in IBAction use below code :
UNMutableNotificationContent *objNotificationContent = [[UNMutableNotificationContent alloc] init];
objNotificationContent.title = [NSString localizedUserNotificationStringForKey:@“Notification!” arguments:nil];
objNotifica...
The shortest possible output from git log containing author and date
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Fixed width columns table: alias glop="git log --pretty=format:'%C(yellow)%h|%Cred%ad|%Cblue%an|%Cgreen%d %Creset%s' --date=short | column -ts'|' | less -r"
– Ciro Santilli 郝海东冠状病六四事件法轮功
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Non-CRUD operations in a RESTful service
...INSERT in the database. Actually, REST is not about exposing your database tables as CRUD operations. From logical point of view you are creating an order (purchase), but the server side is free to do as many processing steps as it wants.
You can even abuse HTTP protocol even further. Use Location ...
What's the difference between “ ” and “ ”?
...least (as far as I remember, IE7 has the same issue), if you have an empty table element, it will not apply styling, for example borders, to the element, if there is no content, or only white space. So the following will not be rendered with borders:
<td></td>
<td> <td>
Wh...
Is a Java string really immutable?
We all know that String is immutable in Java, but check the following code:
15 Answers
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Inherit from a generic base class, apply a constraint, and implement an interface in C#
... simple statements of facts sound brusque and abrasive; I try to read charitably when presented with a list of helpful facts, and recommend that you do so as well. I stand by my recommendation; if you have questions about syntax, the spec answers them definitively and begins with a helpful table of ...
Exit single-user mode
... the utility in msdb.dbo.usp_who2. It saves the results of sp_who2 into a table in tempdb under your user id, filter by the database name. Post an image of the error to help us more. Good luck.
– CRAFTY DBA
Sep 23 '13 at 18:53
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Rails: Default sort order for a rails model?
... would not it be more secure to do default_scope { order("#{table_name}.created_at DESC") } ?
– cyrilchampier
Mar 18 '14 at 17:46
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How to get image height and width using java?
... byte: H is first four bits and V is second four bits
o Quantization table number-- one byte
The H and V sampling factors dictate the final size of the component they are associated with. For instance, the color space defaults to YCbCr and the H and V sampling factors for each component, Y, C...