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How to customize a requirements.txt for multiple environments?
I have two branches, Development and Production. Each has dependencies, some of which are different. Development points to dependencies that are themselves in development. Likewise for Production. I need to deploy to Heroku which expects each branch's dependencies in a single file called 'requiremen...
Android Studio: how to attach Android SDK sources?
How can I attach Android SDK sources to Android Studio?
16 Answers
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Difference between const & const volatile
...stem, this is typically used to access hardware registers that can be read and are updated by the hardware, but make no sense to write to (or might be an error to write to).
An example might be the status register for a serial port. Various bits will indicate if a character is waiting to be read o...
Test if element is present using Selenium WebDriver?
... that is not what I want, because it can be that an element is not present and that is okay, that is not a fail of the test, so an exception can not be the solution.
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Rails: Using greater than/less than with a where statement
...th dates here on SO.
>= vs >
To avoid people having to dig through and follow the comments conversation here are the highlights.
The method above only generates a >= query and not a >. There are many ways to handle this alternative.
For discrete numbers
You can use a number_you_want...
What is the >>>= operator in C?
...ague as a puzzle, I cannot figure out how this C program actually compiles and runs. What is this >>>= operator and the strange 1P1 literal? I have tested in Clang and GCC. There are no warnings and the output is "???"
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How do I pass an object from one activity to another on Android? [duplicate]
I need to be able to use one object in multiple activities within my app, and it needs to be the same object. What is the best way to do this?
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Limit a stream by a predicate
...tream.iterator(), wrap the Iterator to have a "take-while" implementation, and then go back to a Spliterator and then a Stream. Or -- maybe -- wrap the Spliterator, though it can't really be split anymore in this implementation.
Here's an untested implementation of takeWhile on a Spliterator:
sta...
How to define a two-dimensional array?
...sion that could arise with the indexing, if you use "x" for both the inner and outer lists, and want a non-square Matrix.
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Why is there no tuple comprehension in Python?
...an the comprehension syntax is not needed? Perhaps not, but it is awfully handy. For the rare cases you need a tuple instead, the generator expression will do, is clear, and doesn't require the invention of another brace or bracket.
– Martijn Pieters♦
Jun 5 '...