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What's the difference between hard and soft floating point numbers?
...e computation may be done either by floating-point hardware or in software based on integer arithmetic.
Doing it in hardware is much faster, but many microcontrollers don't have floating-point hardware. In that case you may either avoid using floating point (usually the best option) or rely on an i...
When do Java generics require
...ut in this case the class is actually instantiated via reflection and used based on the key. (A distributed app where the client doesn't have the server classes available, just the key of which class to use to do the server side work).
– Yishai
May 22 '09 at 14...
Is there a way to “autosign” commits in Git with a GPG key?
...should be GPG signed.
Use of this option when doing operations such as rebase can result in a large number of commits being signed. It may be convenient to use an agent to avoid typing your GPG passphrase several times.
That config is usually set per repo (you don't need to sign your private e...
background function in Python
...to do in the background, this can be either better or worse than threading-based solutions; certainly, it is much more scaleable (ie you can do many more things in the background), but that might not be of concern in the current situation.
...
Multiple queries executed in java in single statement
... possible. There are two ways, as far as I know. They are
By setting database connection property to allow multiple queries,
separated by a semi-colon by default.
By calling a stored procedure that returns cursors implicit.
Following examples demonstrate the above two possibilities.
Example 1...
Storing DateTime (UTC) vs. storing DateTimeOffset
...ly have an "interceptor" that right before reading/writing from/to the database does DateTime conversion (from UTC to local time, and from local time to UTC), so I can use DateTime.Now (derivations and comparisions) throughout the system without worrying about time zones.
...
enum.values() - is an order of returned enums deterministic
...ld for each planet. Then you can have a trivial comparator compare planets based on their mean distance from Sun, and order them using this comparator. This is IMHO a clean and foolproof solution. Whereas your solution breaks as soon as e.g. a new colleague decides that planets should obviously be l...
parseInt vs unary plus, when to use which?
...ail since the x and e are treated as non-numerical components (at least on base10).
The unary + will convert them properly though.
parseInt('2e3',10) === 2; //true. This is supposed to be 2000
+'2e3' === 2000; //true. This one's correct.
parseInt("0xf", 10) === 0; //true. This is s...
Set default syntax to different filetype in Sublime Text 2
...
You can turn on syntax highlighting based on the contents of the file.
For example, my Makefiles regardless of their extension the first line as follows:
#-*-Makefile-*- vim:syntax=make
This is typical practice for other editors such as vim.
However, for t...
filter items in a python dictionary where keys contain a specific string
...u can use the built-in filter function to filter dictionaries, lists, etc. based on specific conditions.
filtered_dict = dict(filter(lambda item: filter_str in item[0], d.items()))
The advantage is that you can use it for different data structures.
...