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Why does this loop produce “warning: iteration 3u invokes undefined behavior” and output more than 4

... If during the evaluation of an expression, the result is not mathematically defined or not in the range of representable values for its type, the behavior is undefined. [ Note: most existing implementations of C++ ignore integer overflows. Treatment of division by zero, forming a remainde...
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Publish to S3 using Git?

...we wanted). Next create an S3 bucket to store your repository in, let’s call it git-repos, and then create a git repository to upload: s3cmd mb s3://git-repos mkdir chef-recipes cd chef-recipes git init touch README git add README git commit README git remote add origin amazon-s3://.jgit@git-repo...
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How to convert timestamp to datetime in MySQL?

...)) ; to compare dates, I replace 2019-05*02 a formatted datetime object in php. Thnaks. – Mantisse Apr 12 '19 at 18:00 1 ...
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What's the best manner of implementing a social activity stream? [closed]

...a social activity stream (Facebook is the most famous example). Problems/challenges involved are: 13 Answers ...
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How does python numpy.where() work?

... How do they achieve internally that you are able to pass something like x > 5 into a method? The short answer is that they don't. Any sort of logical operation on a numpy array returns a boolean array. (i.e. __gt__, __lt__, etc all return boolea...
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Alternatives to JavaScript

...ipt is like Java because it has similar syntax and a similar name, but actually it's a lot more like lisp. It's actually pretty well suited to DOM manipulation. The real problem is that it's compiled by the browser, and that means it works in a very different way depending on the client. Not only ...
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Convert Django Model object to dict with all of the fields intact

How does one convert a Django Model object to a dict with all of its fields? All ideally includes foreign keys and fields with editable=False . ...
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Byte order mark screws up file reading in Java

...va. Some of the files may have a byte order mark in the beginning, but not all. When present, the byte order gets read along with the rest of the first line, thus causing problems with string compares. ...
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Choosing Java vs Python on Google App Engine

...s mature. However, Java seems to have a longer list of libraries and especially support for Java bytecode regardless of the languages used to write that code. Which language will give better performance and more power? Please advise. Thank you! ...
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How can you set class attributes from variable arguments (kwargs) in python

...riable number of arguments and then sets them as class attributes conditionally. 10 Answers ...