大约有 2,253 项符合查询结果（耗时：0.0227秒） [XML]
Possible Loss of Fraction
...two int's into a floating point value the fraction portion is lost. If you cast one of the items to a float, you won't get this error.
So for example turn 10 into a 10.0
double returnValue = (myObject.Value / 10.0);
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How do I convert NSInteger to NSString datatype?
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NSIntegers are not objects, you cast them to long, in order to match the current 64-bit architectures' definition:
NSString *inStr = [NSString stringWithFormat: @"%ld", (long)month];
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Polymorphism in C++
...ompiler-provided polymorphism for builtin types, Standard conversions, and casting/coercion are discussed later for completeness as:
they're commonly intuitively understood anyway (warranting a "oh, that" reaction),
they impact the threshold in requiring, and seamlessness in using, the above mecha...
How to get the caller's method name in the called method?
...ccessing.
import inspect
from types import FrameType
from typing import cast
def caller_name() -> str:
"""Return the calling function's name."""
# Ref: https://stackoverflow.com/a/57712700/
return cast(FrameType, cast(FrameType, inspect.currentframe()).f_back).f_code.co_name
if...
Converting from IEnumerable to List [duplicate]
...ections.IEnumerable instead of IEnumerable<T> you can use enumerable.Cast<object>().ToList()
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Do I really have a car in my garage? [duplicate]
...rYears on a Vehicle without caring about the implementation.
Usually, downcasting is a sign of a flawed design: do not store your vehicles all together if you need to differenciate their actual type.
Note: of course the design here can be easily improved. It is just an example to demonstrate the p...
Declare a const array
...s", "Wrongs" };
But, this still has a risk for changes, as you can still cast it back to a string[] and alter the contents, as such:
((string[]) Titles)[1] = "French";
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How do you test functions and closures for equality?
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Simplest way is designate the block type as @objc_block, and now you can cast it to an AnyObject which is comparable with ===. Example:
typealias Ftype = @objc_block (s:String) -> ()
let f : Ftype = {
ss in
println(ss)
}
let ff : Ftype = {
sss in
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What is the equivalent of bigint in C#?
...insert and used a
SELECT @@identity
on my bigint primary key, and I get a cast error using long - that was why I started this search. The correct answer, at least in my case, is that the type returned by that select is NUMERIC which equates to a decimal type. Using a long will cause a cast exceptio...
How to convert ‘false’ to 0 and ‘true’ to 1 in Python
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@AlbertChen: no, because numpy arrays broadcast comparisons and don't produce a boolean value. Instead, comparisons produce an array of boolean values. I'm not sure what you expect from an arrayvalue == 'true' comparison, the question I answered here is specific to a ...