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Xcode doesn't show the line that causes a crash
...g. Do the following [in Xcode 4]:
In the Project Navigator on the left side of Xcode, click on the breakpoint navigator (almost all the way to the right hand side of the top button bar. The icon looks like a fat right arrow).
At the bottom of the navigator, click the "+" button.
Click "Add Excep...
What is the difference between LL and LR parsing?
...ol.
An LL parse is a left-to-right, leftmost derivation. That is, we consider the input symbols from the left to the right and attempt to construct a leftmost derivation. This is done by beginning at the start symbol and repeatedly expanding out the leftmost nonterminal until we arrive at the tar...
Can I set max_retries for requests.request?
...er a connection is made are by default not handled as these could lead to side-effects).
Old answer, predating the release of requests 1.2.1:
The requests library doesn't really make this configurable, nor does it intend to (see this pull request). Currently (requests 1.1), the retries count is ...
How do I set up a basic Ruby project?
...d executables go in bin
When in doubt, just look at how other gems are laid out.
Further information:
You should add rspec as a development dependency in your gemspec to make things easier for other developers
Edit my_lib.gemspec, adding gem.add_development_dependency 'rspec' and gem.add_dev...
Enable access control on simple HTTP server
...ing on the Python version you are using, put one of the following codes inside.
Then you can do python simple-cors-http-server.py and it will launch your modified server which will set the CORS header for every response.
With the shebang at the top, make the file executable and put it into your PA...
C++ auto keyword. Why is it magic?
...learn C++, auto has always been a weird storage duration specifier that didn't serve any purpose. But just recently, I encountered code that used it as a type name in and of itself. Out of curiosity I tried it, and it assumes the type of whatever I happen to assign to it!
...
Named regular expression group “(?Pregexp)”: what does “P” stand for?
... mine: I've always thought it stood for Python. That may sound pretty stupid -- what, P for Python?! -- but in my defense, I vaguely remembered this thread [emphasis mine]:
Subject: Claiming (?P...) regex syntax extensions
From: Guido van Rossum (gui...@CNRI.Reston.Va.US)
Date: Dec 1...
Why would iterating over a List be faster than indexing through it?
...complexity is effectively O(N^2) just to traverse the list!
If instead I did this:
for(String s: list) {
System.out.println(s);
}
then what happens is this:
head -> print head -> item1 -> print item1 -> item2 -> print item2 etc.
all in a single traversal, which is O(N).
No...
Generic type parameter naming convention for Java (with multiple chars)?
...ughout the Java SE API and the rest of this lesson.
I'd stick to it to avoid the confusion among the developers and possible maintainers.
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What is the difference between `sorted(list)` vs `list.sort()`?
...5244, 2.8019039630889893, 2.849375009536743]
After some feedback, I decided another test would be desirable with different characteristics. Here I provide the same randomly ordered list of 100,000 in length for each iteration 1,000 times.
import timeit
setup = """
import random
random.seed(0)
l...