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C dynamically growing array
I have a program that reads a "raw" list of in-game entities, and I intend to make an array holding an index number (int) of an indeterminate number of entities, for processing various things. I would like to avoid using too much memory or CPU for keeping such indexes...
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What's the difference between .bashrc, .bash_profile, and .environment?
...for deciding which startup scripts to run. For the purposes of tasks like setting up environment variables and aliases and printing startup messages (e.g. MOTDs), which startup script is the appropriate place to do these?
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Replace non-ASCII characters with a single space
I need to replace all non-ASCII (\x00-\x7F) characters with a space. I'm surprised that this is not dead-easy in Python, unless I'm missing something. The following function simply removes all non-ASCII characters:
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What is the python keyword “with” used for? [duplicate]
What is the python keyword "with" used for?
2 Answers
2
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How to find the 'sizeof' (a pointer pointing to an array)?
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13 Answers
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Array or List in Java. Which is faster?
...been answered.
There are a few things you can do with an array:
create it
set an item
get an item
clone/copy it
General conclusion
Although get and set operations are somewhat slower on an ArrayList (resp. 1 and 3 nanosecond per call on my machine), there is very little overhead of using an ArrayL...
Dump a mysql database to a plaintext (CSV) backup from the command line
...707015. In my case I had to take /var/lib/mysql-files/ (instead of /tmp/), set the user to mysql:mysql and set the rights to 777 - stackoverflow.com/a/32737616/1707015.
– qräbnö
Aug 15 at 13:02
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What are important languages to learn to understand different approaches and concepts? [closed]
... types, that alone blew my mind. A simple example:
concatenate: forall (A:Set)(n m:nat), (array A m)->(array A n)->(array A (n+m))
is the signature of a function that concatenates two arrays of size n and m of elements of A and returns an array of size (n+m). It won't compile if the functio...
convert streamed buffers to utf8-string
... It defaults to utf8 if you don't provide a parameter, but I've explicitly set the encoding in this example.
var req = http.request(reqOptions, function(res) {
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res.on('data', function(chunk) {
var textChunk = chunk.toString('utf8');
// process utf8 text chunk
});
})...
Removing all non-numeric characters from string in Python
...ng these constants heavily, it can be worthwhile to covert them to a frozenset. That enables O(1) lookups, rather than O(n), where n is the length of the constant for the original strings.
>>> digits = frozenset(digits)
>>> ''.join(c for c in "abc123def456" if c in digits)
'123456...