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Can one do a for each loop in java in reverse order?
...e sub-optimal for Linked Lists as each get would have to traverse the list from beginning to end (or possibly end to beginning) for each get. It is better to use a smarter iterator as in Nat's solution (optimal for all implementations of List).
– Chris
May 20 '...
What is the fastest way to get the value of π?
...ill be an approximation of π. I'm not sure what "close enough" means, but from my tests, one iteration got 2 digits, two got 7, and three had 15, of course this is with doubles, so it might have an error based on its representation and the true calculation could be more accurate.
let pi_2 iters =
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C++ : why bool is 8 bits long?
...processors, addressing a "byte" anyhow ends-up fetching more than a "byte" from external memory: this is due to efficiency reasons.
– jldupont
Jan 14 '10 at 14:34
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How can I stop a Postgres script when it encounters an error?
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I think the solution to add following to .psqlrc is far from perfection
\set ON_ERROR_STOP on
there exists much more simple and convenient way - use psql with parameter:
psql -v ON_ERROR_STOP=1
better to use also -X parameter turning off .psqlrc file usage.
Works perfectly f...
Why does (i
...
The integer objects are different. It is different from the basic int type.
See this answer: How to properly compare two Integers in Java?
The i != j part is true, which you were expecting to be false.
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Is Big O(logn) log base e?
... run-time.
In big-O() notation, constant factors are removed. Converting from one logarithm base to another involves multiplying by a constant factor.
So O(log N) is equivalent to O(log2 N) due to a constant factor.
However, if you can easily typeset log2 N in your answer, doing so is more pedag...
How to create named and latest tag in Docker?
... docker tag $ID creack/node:0.10.24
You can use this and skip the -t part from build
$ docker tag $ID creack/node:latest
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Twitter API returns error 215, Bad Authentication Data
... 1 and 2 - your application static tokens, 2 and 3 - user tokens, received from Twitter during authentification
$connection = new TwitterOAuth(TWITTER_CONSUMER_KEY, TWITTER_CONSUMER_SECRET, $tokens['oauth_token'], $tokens['oauth_token_secret']);
$connection->host = 'https://api.twitter.com/1....
Are there any downsides to passing structs by value in C, rather than passing a pointer?
...ucts (eg point, rect) passing by value is perfectly acceptable. But, apart from speed, there is one other reason why you should be careful passing/returning large structs by value: Stack space.
A lot of C programming is for embedded systems, where memory is at a premium, and stack sizes may be meas...
Choosing Java vs Python on Google App Engine
... code in the user's browser, Java's GWT (generating the Javascript for you from your Java-level coding) is far richer and more advanced than Python-side alternatives (in practice, if you choose Python, you'll be writing some JS yourself for this purpose, while if you choose Java GWT is a usable alte...