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Why covariance and contravariance do not support value type
...is in fact a subtype of object (an alias of System.Object). In fact, int's base class is System.ValueType who's base class is System.Object. Try evaluating the following expression and see: typeof(int).BaseType.BaseType. The reason ReferenceEquals returns false here is that the int is boxed into two...
How do I check OS with a preprocessor directive?
I need my code to do different things based on the operating system on which it gets compiled. I'm looking for something like this:
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Vim: Move cursor to its last position
... to vim more confused.
The behavior of '' or ``, and CtrlI or CtrlO are based on jump list. The 2j will not save the position changes into the jump list so these command will not work for 2j.
'' or `` switch between the last position and the current position.
CtrlI and CtrlO work through the jum...
Is main() really start of a C++ program?
...of objects outside that start up is what a lot of LD_PRELOAD libraries are based on.
– CashCow
Jan 24 '11 at 15:11
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Bitwise operation and usage
...ed width where bits are discarded - while many languages use a fixed width based on the data type, Python simply expands the width to cater for extra bits. In order to get the discarding behaviour in Python, you can follow a left shift with a bitwise and such as in an 8-bit value shifting left four ...
What data is stored in Ephemeral Storage of Amazon EC2 instance?
...verything in your ephemeral storage. Then, when you launch a new instance based on that AMI it will contain everything as it is now.
Update: to clarify based on comments by mattgmg1990 and glenn bech:
Note that there is a difference between "stop" and "terminate". If you "stop" an instance that ...
How to multiply duration by integer?
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It works because constants have an adaptive type, based on how they are used. See this blog post by Rob Pike that explains it in detail: blog.golang.org/constants
– mna
Aug 28 '15 at 14:12
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How do I return multiple values from a function? [closed]
...ples": it's also more readable and less error prone as you access the data based on its name rather than position.
– Denis Dollfus
Jan 16 at 13:09
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Are std::vector elements guaranteed to be contiguous?
...ritage (List, Scheme, Haskell) and I seriously doubt whether yet-another-C-based-syntax is an ideal starting point for better list handling. Some time last year I briefly tried to persuade him to turn his considerable talents towards improving an already-established language like C# instead, but wit...
preferredStatusBarStyle isn't called
...tatusBarStyleDefault];
Note that you'll also need to set UIViewControllerBasedStatusBarAppearance to NO in the plist file if you use this method.
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