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When is assembly faster than C?
... @Praxeolitic: FP add is commutative (a+b == b+a), but not associative (reordering of operations, so rounding of intermediates is different). re: this code: I don't think uncommented x87 and a loop instruction are a very awesome demonstration of fast asm. loop is apparently not actually a bottlen...
NoSQL (MongoDB) vs Lucene (or Solr) as your database
...tially update a document in solr. You have to re-post all of the fields in order to update a document.
And performance matters. If you do not commit, your change to solr does not take effect, if you commit every time, performance suffers.
There is no transaction in solr.
As solr has these disadvanta...
What is a serialVersionUID and why should I use it?
...I wouldn't expect it to say you need one - but it may be suggesting one in order to help you serialize exceptions correctly. If you're not going to serialize them, you really don't need the constant.
– Jon Skeet
Jun 15 '14 at 18:43
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How to model type-safe enum types?
...s of limited utility in practice (you might as well use case objects).
In order to get something most closely resembling a Java Enum (i.e. with sensible toString and valueOf methods -- perhaps you are persisting the enum values to a database) you need to modify it a bit. If you had used skaffman's...
Left Align Cells in UICollectionView
...CGFloat maxY = -1.0f;
//this loop assumes attributes are in IndexPath order
for (UICollectionViewLayoutAttributes *attribute in attributes) {
if (attribute.frame.origin.y >= maxY) {
leftMargin = self.sectionInset.left;
}
attribute.frame = CGRectMake(l...
Anaconda vs. EPD Enthought vs. manual installation of Python [closed]
... old and we were unable to update becasue of the weird proxy situation. In order to add some packages (such as recent version of xlrd/xlwt), I compiled from source. To update SciPy and NumPy, I used the precompiled installer from http://www.lfd.uci.edu/~gohlke/pythonlibs/, but it would sometimes scr...
iOS Tests/Specs TDD/BDD and Integration & Acceptance Testing
...tput goes into the build window where you have to unfold the build step in order to read it.
We wanted easy to read test reporting, both on the command line and in Xcode. OCUnit results appear nicely in the build window in Xcode, but building from the command line (or as part of a CI process) res...
Saving interactive Matplotlib figures
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On my py3.5 on MacOS 10.11, the order of fig.show() doesn't appear to matter - maybe that bug was fixed. I can pickle before/after show() without issue.
– Demis
Feb 1 '16 at 19:42
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How can I convert ereg expressions to preg in PHP?
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How to “log in” to a website using Python's Requests module?
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