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Move assignment operator and `if (this != &rhs)`
...controversial question. Some will say yes, absolutely, some will say no.
My personal opinion is no, you don't need this check.
Rationale:
When an object binds to an rvalue reference it is one of two things:
A temporary.
An object the caller wants you to believe is a temporary.
If you have a ...
What Xcode keyboard shortcuts do you use regularly? [closed]
...
Still Cmd-Shift+o in my Xcode 4.5.2
– jake_hetfield
Nov 23 '12 at 11:37
3
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Visual Studio 2010 IntelliSense doesn't select a default value - it just marks it
...typing. Even though it turns out to be the same thing as this, this caught my eye and helps me understand what I'm doing.
– Timo
Nov 17 '15 at 11:57
6
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Why is JsonRequestBehavior needed?
...itive data, then it should be safe to allow the get.
Further reading from my Wrox ASP.NET MVC3 book
By default, the ASP.NET MVC framework does not allow you to respond to
an HTTP GET request with a JSON payload. If you need to send JSON in
response to a GET, you'll need to explicitly allow ...
C++ IDE for Macs [closed]
I teach a C++ course using Visual Studio. One of my students has a Mac and was looking for an IDE to use on his machine. What would be good to recommend?
...
Regular Expressions- Match Anything
...e this expression, I feel guilty, for not making a specific expression for my use case. If say, w+ isn't enough, I end up using .+. Luckily hasn't come back to bite me yet.
– Tushar
Oct 1 '18 at 12:26
...
Get an object properties list in Objective-C
...
I just managed to get the answer myself. By using the Obj-C Runtime Library, I had access to the properties the way I wanted:
- (void)myMethod {
unsigned int outCount, i;
objc_property_t *properties = class_copyPropertyList([self class], &outCou...
Count(*) vs Count(1) - SQL Server
...do too.
SYS_GUID() in Oracle is quite computation intensive function.
In my test database, t_even is a table with 1,000,000 rows
This query:
SELECT COUNT(SYS_GUID())
FROM t_even
runs for 48 seconds, since the function needs to evaluate each SYS_GUID() returned to make sure it's not a NULL....
How do I vertically center text with CSS? [duplicate]
...
Only 3rd approach works well on my Firefox 22.0, however it does not work for all browsers. First 2 approaches stop working properly once I change height size for the div
– YMC
Jul 30 '13 at 22:28
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When NOT to use yield (return) [duplicate]
... : Enumerable.Empty<UserRight>();
}
Update
Here's the results of my benchmark:
These results show how long it took (in milliseconds) to perform the operation 1,000,000 times. Smaller numbers are better.
In revisiting this, the performance difference isn't significant enough to worry ab...