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What is the best way to compare floats for almost-equality in Python?
...t, we know the error in a single result is at most 1/2 of the value of the least significant bit. (If it were more, the rounding would have gone to a different number that is within 1/2 the value.)
Going on from there gets substantially more complicated; the next step is performing an operation whe...
Using msbuild to execute a File System Publish Profile
... how to hook into it would be nice, but seems to be
sadly lacking (or at least I can’t find it).
Unfortunately, this means performing publishing via the command line
is much more opaque than it needs to be. I was surprised by the lack
of documentation in this area, because these days ma...
“Auto Layout still required after executing -layoutSubviews” with UITableViewCell subclass
...t appears this bug is fixed in iOS7; I was able to remove this code, or at least add a runtime check so that it's only done if running on iOS6.
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How to track down a “double free or corruption” error
...
There are at least two possible situations:
you are deleting the same entity twice
you are deleting something that wasn't allocated
For the first one I strongly suggest NULL-ing all deleted pointers.
You have three options:
overloa...
URL Encoding using C#
...en Buffer Size and the Window Size
// Width properties to at least 140 characters, to display the full width of the
// table that is generated.
Dictionary<string, Func<string, string>> columnDetails =
new Dictionary<string, Func...
What does “static” mean in C?
...at arguments passed to this function must be an array of type char with at least 10 elements in it. For more info see my question here.
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What is the most compatible way to install python modules on a Mac?
...arding which python to use, sticking with Apple's python will give you the least headaches, but If you need a newer version (Leopard is 2.5.1 I believe), I would go with the macports python 2.6.
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In what situations would AJAX long/short polling be preferred over HTML5 WebSockets?
...n quality progression can be sacrificed in favour of response time and, at least, some data transfer. Both sides (peers) can push data to each other independently. While it can be used totally independent from any centralised servers, it still requires some way of exchanging endPoints data, where in...
opengl: glFlush() vs. glFinish()
...ely executed. So during the whole time the GPU works, the CPU does not (at least on this thread). And all the time the CPU does its work (mostly batching commands), the GPU does not do anything. So yeah, glFinish should hurt your performance. (This is an approximation, as drivers may start having th...
Why does PHP 5.2+ disallow abstract static class methods?
...ng. "still not allowed" just means you'll get a E_STRICT level warning, at least in 5.3+ you're perfectly welcome to create abstract static functions, implement them in extended classes, and then refer to them via the static:: keyword. Obviously the parent class' static version is still there and ca...