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Conditions for automatic generation of default/copy/move ctor and copy/move assignment operator?
I want to refresh my memory on the conditions under which a compiler typically auto generates a default constructor, copy constructor and assignment operator.
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C# vs C - Big performance difference
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my first guess is a compiler optimization because you never use root. You just assign it, then overwrite it again and again.
Edit: damn, beat by 9 seconds!
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What's the difference between including files with JSP include directive, JSP include action and usi
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@sonicboom Updated my answer
– informatik01
Feb 8 '13 at 0:53
1
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What is a Y-combinator? [closed]
...binator. I'll read his post again soon and see if I can post a correction. My gut is warning me that the strict static typing of C# may prevent it in the end, but I'll see what I can do.
– Chris Ammerman
Jul 18 '11 at 12:40
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Match multiline text using regular expression
... Pattern.DOTALL flag set (this is easier to read and remember than (?s) in my opinion. You should use what you feel most comfortable with.
– Tim Pietzcker
Sep 7 '10 at 7:43
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What's the difference between SoftReference and WeakReference in Java?
... edited Oct 31 '18 at 10:34
itsmysterybox
1,92833 gold badges1818 silver badges2525 bronze badges
answered Nov 18 '08 at 18:37
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Why use the SQL Server 2008 geography data type?
... ones. Ultimately, I decided to just use decimal fields in this case (see my long-winded update), but it's good to know that I can use geography if I ever need to do anything fancier than simply mapping coordinates.
– Jeff Ogata
Sep 14 '11 at 18:05
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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?
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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)
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Android custom dropdown/popup menu
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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="...