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Why does GCC generate 15-20% faster code if I optimize for size instead of speed?
...y to generate noticeably faster code if I optimize for size ( -Os ) instead of speed ( -O2 or -O3 ), and I have been wondering ever since why.
...
Getting started with Haskell
For a few days I've tried to wrap my head around the functional programming paradigm in Haskell. I've done this by reading tutorials and watching screencasts, but nothing really seems to stick.
Now, in learning various imperative/OO languages (like C, Java, PHP), exercises have been a good way for m...
PHP parse/syntax errors; and how to solve them
...w basic precautions you can always take:
Use proper code indentation, or adopt any lofty coding style.
Readability prevents irregularities.
Use an IDE or editor for PHP with syntax highlighting.
Which also help with parentheses/bracket balancing.
Read the language reference and examples in the m...
How to limit setAccessible to only “legitimate” uses?
...Object.setAccessible , the more astonished I am at what it can do. This is adapted from my answer to the question ( Using reflection to change static final File.separatorChar for unit testing ).
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When to use Storyboard and when to use XIBs
...een storyboards.
You still need XIBs: In both of my Storyboard projects I had to use XIBs for custom table cells.
I think Storyboards are a step in the right direction for UI implementation and hope Apple will extend them in future iOS versions. They need to resolve the "single file" issue though,...
Peak signal detection in realtime timeseries data
... # No signal
set filteredY(i) to y(i);
end
# Adjust the filters
set avgFilter(i) to mean(filteredY(i-lag),...,filteredY(i));
set stdFilter(i) to std(filteredY(i-lag),...,filteredY(i));
end
Rules of thumb for selecting good parameters for your data can be found belo...
Creating an API for mobile applications - Authentication and Authorization
...ion for web-based APIs (by studying other implementations). I've got my head wrapped around most of the fundamental concepts but am still looking for guidance in a few areas. The last thing I want to do is reinvent the wheel, but I'm not finding any standard solutions that fits my criteria (howeve...
Java 8 Iterable.forEach() vs foreach loop
...n optimization, but critical when you consider that some sequences (like reading the lines in a file) may have side-effects, or you may have an infinite sequence."
Might execute in parallel, which is a horrible, horrible thing for all but the 0.1% of your code that needs to be optimized. Any parall...
Fast Bitmap Blur For Android SDK
...
LukeLuke
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Are static class variables possible in Python?
...o say on the subject of classes and class objects.
@Steve Johnson has already answered regarding static methods, also documented under "Built-in Functions" in the Python Library Reference.
class C:
@staticmethod
def f(arg1, arg2, ...): ...
@beidy recommends classmethods over staticmethod...