大约有 10,000 项符合查询结果（耗时：0.0282秒） [XML]
How do I call ::std::make_shared on a class with only protected or private constructors?
...ve(retval);
}
Edit 2017-01-06: I changed this to make it clear that this idea is clearly and simply extensible to constructors that take arguments because other people were providing answers along those lines and seemed confused about this.
...
What does “DAMP not DRY” mean when talking about unit tests?
...ningful Phrases.
"DAMP not DRY" values readability over code re-use. The idea of DAMP not DRY in test cases is that tests should be easy to understand, even if that means test cases sometimes have repeated code.
See also Is duplicated code more tolerable in unit tests? for some discussion on the ...
How to send an object from one Android Activity to another using Intents?
...
Not necessarily a bad idea, esp. since Gson is much simpler to use than to implement parcelable for all the objects you want to send.
– uvesten
Apr 13 '11 at 15:26
...
What are your favorite extension methods for C#? (codeplex.com/extensionoverflow)
... going to be unreadable to new members of the team. I thought that was the idea with this witty stuff? How else will the new members know how clever we are?
– MarkJ
Feb 28 '09 at 9:13
...
PostgreSQL: Which Datatype should be used for Currency?
... power of ten, no matter what precision you use. (Precision of 2 is a Bad Idea anyway... check the docs.)
– Doradus
Jan 9 '18 at 12:05
...
Disable pasting text into HTML form
...on to do this. Warn someone that what they are trying to do is not a good idea in most cases, but give an answer... or it's best to just not bother replying.
– Halfhoot
Aug 2 '17 at 19:39
...
Abusing the algebra of algebraic data types - why does this work?
... automatically and my less-than-subtle choice of names should give you the idea. The (&&&) operator is defined in Control.Arrow, by the way.
The dual of the above is the coproduct A+B with injections inl : A → A+B and inr : B → A+B, where given any type C and functions f : A → C, g...
Pattern to avoid nested try catch blocks?
...ing a 3rd party library and has to do the best they can to ensure success. Ideally, the input could by validated first and the correct calculation function chosen to ensure it will not fail - of course, you could then put all that in a try/catch just to be safe ;)
– musefan
...
How do cache lines work?
...e cache memory areas renders the CPU defect as a whole).
To give a timing idea (source: costs to access caches and memory)
L1 cache: 1ns to 2ns (2-4 cycles)
L2 cache: 3ns to 5ns (6-10 cycles)
L3 cache: 12ns to 20ns (24-40 cycles)
RAM: 60ns (120 cycles)
Since we mix different CPU types these ar...
If string is empty then return some default value
...
Phrogz sort of gave me the idea in PofMagicfingers comment, but what about overriding | instead?
class String
def |(what)
self.strip.blank? ? what : self
end
end
@user.address | "We don't know user's address"
...