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Why do we copy then move?
I saw code somewhere in which someone decided to copy an object and subsequently move it to a data member of a class. This left me in confusion in that I thought the whole point of moving was to avoid copying. Here is the example:
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Why does my application spend 24% of its life doing a null check?
...d. The next statement is very cheap because the while() statement already did the heavy lifting of retrieving the value from memory. Assigning the local variable is cheap, a processor uses a buffer for writes.
Not otherwise a simple problem to solve, flattening your tree into arrays is very likely ...
Difference between rake db:migrate db:reset and db:schema:load
... database
rake db:schema:load If you wanna reset database to schema as provided in schema.rb (This will delete all data)
Explanations
rake db:schema:load will set up the schema as provided in schema.rb file. This is useful for a fresh install of app as it doesn't take as much time as db:migrate
Im...
TCP: can two different sockets share a port?
...on that server are associated with that same listening port on the server side of the connection. An established connection is uniquely identified by the combination of client-side and server-side IP/Port pairs. Multiple connections on the same server can share the same server-side IP/Port pair as...
Is Java Regex Thread Safe?
...package") so one can take a quick peek oneself.
– David Tonhofer
Nov 18 '13 at 15:40
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Where is a complete example of logging.config.dictConfig?
... why it doesnt work without it (e.g. when changing the blank value to a valid value such as standard
– user9074332
Oct 1 '18 at 16:10
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Call Go functions from C
...nt {
return a + b
}
// This is the public function, callable from outside this package.
// It forwards the parameters to C.doAdd(), which in turn forwards
// them back to goCallbackHandler(). This one performs the addition
// and yields the result.
func MyAdd(a, b int) int {
return int( C.do...
What is the significance of ProjectTypeGuids tag in the visual studio project file
What is the significance of the ProjectTypeGuids tag in a visual studio project?? When I created a WPF application, i am seeing two GUIDs in here.
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All permutations of a Windows license key
...ade for my laptop, for which I need the Windows 7 license key on the underside of the laptop.
6 Answers
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Set Background cell color in PHPExcel
... 'fill' => array(
'type' => PHPExcel_Style_Fill::FILL_SOLID,
'color' => array('rgb' => 'FF0000')
)
)
);
Source: http://bayu.freelancer.web.id/2010/07/16/phpexcel-advanced-read-write-excel-made-simple/
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