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Method has the same erasure as another method in type
...ode that still uses raw types.
Here's an illustration of why this was not allowed, drawn from the JLS. Suppose, before generics were introduced to Java, I wrote some code like this:
class CollectionConverter {
List toList(Collection c) {...}
}
You extend my class, like this:
class Overrider e...
Cast List to List
...List<Apple>();
List<IFruit> fruit = apples; // Fortunately not allowed
fruit.Add(new Banana());
// Eek - it's a banana!
Apple apple = apples[0];
Now you can convert a List<Apple> to an IEnumerable<IFruit> in .NET 4 / C# 4 due to covariance, but if you want a List<IFruit...
What does the unary plus operator do?
...
It's there to be overloaded if you feel the need; for all predefined types it's essentially a no-op.
The practical uses of a no-op unary arithmetic operator are pretty limited, and tend to relate to the consequences of using a value in an arithmetic expression, rather than the ...
How can Xcode 6 adaptive UIs be backwards-compatible with iOS 7 and iOS 6?
...se changed constraints are visible in the iPad Simulator running iOS 7.0.
All size class optimizations are made available to iOS 7, except size classes that have a Compact Height. This has been confirmed by Apple and is now stated directly in the documentation:
For apps supporting versions of iOS ...
Which is preferred: Nullable.HasValue or Nullable != null?
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The compiler replaces null comparisons with a call to HasValue, so there is no real difference. Just do whichever is more readable/makes more sense to you and your colleagues.
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What's the point of const pointers?
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"Help the compiler help you" is the mantra I normally chant for this.
– Flexo♦
Oct 11 '11 at 9:44
1
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TortoiseGit not showing icon overlays
... What I did was this (copied):
I find solution :)
Wrapping with "" all tortoise keys under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers
on 1TortoiseNormal and etc...
I understood the problem, seeing as Dropbox and it worked regedi...
How to “git clone” including submodules?
...e available in version 2.8, and fetches up to 8 submodules at a time in parallel — see man git-clone.
With version 1.9 of Git up until version 2.12 (-j flag only available in version 2.8+):
git clone --recursive -j8 git://github.com/foo/bar.git
cd bar
With version 1.6.5 of Git and later, you c...
Can an ASP.NET MVC controller return an Image?
...Letting the user pass a file name (path) like this means they could potentially access files from anywhere on the server. Might want to warn people not to use it as-is.
– Ian Mercer
Jan 28 '11 at 7:53
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Multiple Inheritance in C#
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@MrHappy: Very interesting article. I've actually investigated some way of Trait Composition for C#, take a look.
– Jordão
Mar 3 '12 at 3:32
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