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Is there a performance difference between i++ and ++i in C++?
...his->data += 1;
return *this;
}
Foo Foo::operator++(int ignored_dummy_value) // called for i++
{
Foo tmp(*this); // variable "tmp" cannot be optimized away by the compiler
++(*this);
return tmp;
}
Since the compiler isn't generating code, but just calling an operator++ func...
What is the purpose of mock objects?
...
test driver to mock cook: expect a hot dog order and give him this dummy hot dog in response
test driver (posing as customer) to waiter: I would like a hot dog please
waiter to mock cook: 1 hot dog please
mock cook to waiter: order up: 1 hot dog ready (gives dummy hot dog to waiter)
...
Android custom dropdown/popup menu
...
Update: To create a popup menu in android with Kotlin refer my answer here.
To create a popup menu in android with Java:
Create a layout file activity_main.xml under res/layout directory which contains only one button.
Filename: activity_main.xml
<RelativeLayout xmlns:android="...
Why does this method print 4?
...y analysis.
EDIT
I finally found time to run some experiments to back up my theory. Unfortunately, the theory doesn't seem to match up with the experiments. What actually happens is very different.
Experiment setup:
Ubuntu 12.04 server with default java and default-jdk. Xss starting at 70,000 at ...
Populate data table from data reader
...
You saved my Day (Y)
– Uzair Xlade
Nov 9 '19 at 11:31
1
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Should logger be private static or not
...ger(SubClazz.class) and something like: log.info("calling <something in my base class>");
– inor
Mar 4 '18 at 9:27
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What is “lifting” in Scala?
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@BenJames True indeed. To my defence: oxbow_lakes' answer wasn't there yet when I started to write mine.
– Malte Schwerhoff
Jul 31 '13 at 12:06
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Start / Stop a Windows Service from a non-Administrator user account
...trator user, UserA, the permissions to Start/Stop this particular service. My service runs on a variety of Windows OS, starting from Windows Server 2003 to Windows 7.
...
What algorithm can be used for packing rectangles of different sizes into the smallest rectangle pos
...tty good job only leaving a little wasted data. Now I just need to rewrite my implementation to be more efficient than a linear search for each rect through the available space checking each pixel is that point is blocked (against all the existing rects)...
– Fire Lancer
...
How do I create a nice-looking DMG for Mac OS X using command-line tools?
... come up with this answer, and I'm hereby putting it here as an answer for my own question, for reference:
Make sure that "Enable access for assistive devices" is checked in System Preferences>>Universal Access. It is required for the AppleScript to work. You may have to reboot after this ch...