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Can an enum class be converted to the underlying type?
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I think you can use std::underlying_type to know the underlying type, and then use cast:
#include <type_traits> //for std::underlying_type
typedef std::underlying_type<my_fields>::type utype;
utype a = static_cast<utype>(my_fields::field);
With th...
Proper practice for subclassing UIView?
...rarchy has been unarchived and initialized.
From the doc of NSNibAwaking (now superseded by the doc of awakeFromNib):
Messages to other objects can be sent safely from within awakeFromNib—by which time it’s assured that all the objects are unarchived and initialized (though not necessarily ...
Why is list initialization (using curly braces) better than the alternatives?
...an call completely different functions, and this is an important thing to know. It can even result in calls that seem unintuitive. Saying that you should prefer {} by default will lead to people misunderstanding what's going on. This isn't your fault, though. I personally think it's an extremely poo...
Python read-only property
I don't know when attribute should be private and if I should use property.
10 Answers
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Does Haskell require a garbage collector?
...y unnecessary.
jhc actually uses a sophisticated form of escape analysis known as region inference. Consider
f :: Integer -> (Integer, Integer)
f x = let x2 = x * x in (x2, x2+1)
g :: Integer -> Integer
g x = case f x of (y, z) -> y + z
In this case, a simplistic escape analysis would ...
Is it safe to ignore the possibility of SHA collisions in practice?
... crashes on Earth within the next second, obliterating civilization-as-we-know-it, and killing off a few billion people? It can be argued that any unlucky event with a probability lower than that is not actually very important.
If we have a "perfect" hash function with output size n, and we have p ...
What is the difference between “Rollback…” and “Back Out Submitted Changelist #####” in Perforce P4V
...en made to any of those files, Perforce will tell you that those files are now out of date. You will have to sync to the head revision and then resolve the differences. This way you don't inadvertently clobber any changes that you actually want to keep.
Both operations work by essentially submitt...
Difference between method and function in Scala
...l):
def apply(v1: T1, v2: T2): R
And that tell us all that there is to know about it. A function has an apply method which receives N parameters of types T1, T2, ..., TN, and returns something of type R. It is contra-variant on the parameters it receives, and co-variant on the result.
That varia...
Should flux stores, or actions (or both) touch external services?
...'re using):
someActionCreator: function(userId) {
// Dispatch an action now so that stores that want
// to optimistically update their state can do so.
dispatch("SOME_ACTION", {userId: userId});
// This example uses promises, but you can use Node-style
// callbacks or whatever you want f...
Tools to selectively Copy HTML+CSS+JS From A Specific Element of DOM [closed]
...html & css). I can't believe this actually worked. And just so people know, I didn't see this feature in edge just explorer.
– Watson
Nov 7 '16 at 18:50
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