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Why does casting int to invalid enum value NOT throw exception?
If I have an enum like so:
4 Answers
4
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Getting the first index of an object
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If the order of the objects is significant, you should revise your JSON schema to store the objects in an array:
[
{"name":"foo", ...},
{"name":"bar", ...},
{"name":"baz", ...}
]
or maybe:
[
["foo", {}],
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Java Generics Wildcarding With Multiple Classes
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Actually, you can do what you want. If you want to provide multiple interfaces or a class plus interfaces, you have to have your wildcard look something like this:
<T extends ClassA & InterfaceB>
See the Generics Tutorial at sun.com, specifically t...
How to copy a local Git branch to a remote repo
... the same ref (e.g. refs/heads/experimental) in origin repository with it.
If experimental did not exist remotely, it would be created.
This is the same as:
git push origin experimental:refs/heads/experimental
Create the branch experimental in the origin repository by copying the current experiment...
How to set downloading file name in ASP.NET Web API
...need to be escaped like a ;. You should use the accepted answer Darin made if your file name could contain a semi-colon.
Add a Response.AddHeader to set the file name
Response.AddHeader("Content-Disposition", "attachment; filename=*FILE_NAME*");
Just change FILE_NAME to the name of the file.
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MySQL, Check if a column exists in a table with SQL
I am trying to write a query that will check if a specific table in MySQL has a specific column, and if not — create it. Otherwise do nothing. This is really an easy procedure in any enterprise-class database, yet MySQL seems to be an exception.
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Batch file to copy directories recursively
Is there a way to copy directories recursively inside a .bat file?
If so, an example would be great. thanks.
3 Answers
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Where are iOS simulator screenshots stored?
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If you create screenshots from within the simulator using File -> Save Screen Shot (Command-S), those files end up on the Desktop as something like: iOS Simulator Screen shot Apr 22, 2012.png.
Under Xcode 6 & newer, de...
Closing WebSocket correctly (HTML5, Javascript)
...as wondering, how do I close the connection gracefully? Like, what happens if user refreshes the page, or just closes the browser?
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What exactly do “IB” and “UB” mean?
...ur code less portable.
UB: Undefined Behaviour. The standard does not specify how a program invoking undefined behaviour should behave. Also known as "nasal demons" because theoretically it could make demons fly out of your nose.
Using undefined behaviour is nearly always a bad idea. Even if it se...