大约有 46,000 项符合查询结果（耗时：0.0590秒） [XML]
Schema for a multilanguage database
...tingdate = CONVERT( datetime, @in_reportingdate)
SET @reportingdate = CAST(FLOOR(CAST(@reportingdate AS float)) AS datetime)
SET @in_reportingdate = CONVERT(varchar(50), @reportingdate)
SET NOCOUNT ON;
SET @sql='SELECT
Building_Nr AS RPT_Building_Number
,Build...
How do I pass a unique_ptr argument to a constructor or a function?
...eter by value. std::move doesn't actually move anything; it's just a fancy cast. std::move(nextBase) returns a Base&& that is an r-value reference to nextBase. That's all it does.
Because Base::Base(std::unique_ptr<Base> n) takes its argument by value rather than by r-value reference,...
What is an existential type?
...ely become opaque; perhaps the only thing you can still do with it is type-cast it to Object.
Summary:
===========================================================
| universally existentially
| quantified type quantified type
------------------...
Why does int i = 1024 * 1024 * 1024 * 1024 compile without error?
...
Right. Assigning an int to a long includes an implicit cast. But the value can never exist as the int in the first place to get casted :)
– Cruncher
Jul 11 '14 at 18:14
...
Adding two Java 8 streams, or an extra element to a stream
...type of Something<? extends T>, not the other way, so it couldn't be cast) Additional .map(identity()) cast <? extends T> to <T>. It happens thanks to mix of java 8 'target types' of method arguments and return types and signature of map() method. Actually it is Function.<T>i...
Why doesn't Java offer operator overloading?
...and one double. There is even the whole pointer arithmetic domain (without casting, you can add to a pointer an integer, but you cannot add two pointers...).
In Java, there is no pointer arithmetic, but someone still found string concatenation without the + operator would be ridiculous enough to ju...
What is a handle in C++?
...ss HANDLE around as an opaque value.
In the code that uses the object, it casts the pointer to a real structure type and uses it:
int doSomething(HANDLE s, int a, int b) {
Something* something = reinterpret_cast<Something*>(s);
return something->doit(a, b);
}
Or it uses it a...
Why are function pointers and data pointers incompatible in C/C++?
...be converted back to the original function pointer type, using an explicit cast, without loss of information. Note: The ISO C standard does not require this, but it is required for POSIX conformance.
– Jonathan Leffler
Sep 11 '12 at 18:23
...
Why shouldn't Java enum literals be able to have generic type parameters?
... information for type-checks. And then "converts" the generic type to type casts. I'll rephrase the question
– Lukas Eder
Nov 27 '10 at 9:32
...
Literal suffix for byte in .NET?
...
f = float
m = decimal
d = double
If you want to use var, you can always cast the byte as in var y = (byte) 5
Although not really related, in C#7, a new binary prefix was introduced 0b, which states the number is in binary format. Still there is no suffix to make it a byte though, example:
var b...