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What does the “__block” keyword mean?
What exactly does the __block keyword in Objective-C mean? I know it allows you to modify variables within blocks, but I'd like to know...
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Installing Google Protocol Buffers on mac
...ebrew version:
brew link --force --overwrite protobuf241
Check that you now have the correct version installed by typing:
protoc --version
It should display 2.4.1
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What is the copy-and-swap idiom?
...rray); // (3)
}
return *this;
}
And we say we're finished; this now manages an array, without leaks. However, it suffers from three problems, marked sequentially in the code as (n).
The first is the self-assignment test. This check serves two purposes: it's an easy way to prevent us fr...
How to access and test an internal (non-exports) function in a node.js module?
...ha. You can then run your mocha tests with make test at the command line.
Now, you can conditionally export your function that isn't usually exported only when your mocha tests are running:
function exported(i) {
return notExported(i) + 1;
}
function notExported(i) {
return i*2;
}
if (proc...
How to use a dot “.” to access members of dictionary?
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Very simple answer, great! Do you happen to know what I would need to to in order to have tab-completion in IPython work? The class would need to implement __dir__(self), but somehow I cannot get it to work.
– andreas-h
Feb 19 '16...
How do I run all Python unit tests in a directory?
...th have failed. I will show the two methods, and I hope someone out there knows how to actually do this correctly.
15 Answe...
hasNext in Python iterators?
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@Giorgio, there is no way to know whether another element exists without executing the code that generates it (you don't know whether the generator will execute yield or not). It is, of course, not difficult to write an adaptor that stores the result of n...
Redirecting stdout to “nothing” in python
...y large number of modules, each printing something to the standard output. Now as the project has grown in size, there are large no. of print statements printing a lot on the std out which has made the program considerably slower.
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How to list imported modules?
...like 'import %s as %s' % (val.__name__, name) where the yield statement is now.
– André C. Andersen
May 7 '17 at 19:30
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Django 1.7 - makemigrations not detecting changes
...e) and then running makemigrations immediately made a migration module and now it's working. makemigrations will not work on unmanaged tables (Which is obvious in hindsight)
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