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Passing an array by reference
How does passing a statically allocated array by reference work?
5 Answers
5
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smart pointers (boost) explained
... the same time. This applies to a raw pointer too, however raw pointers lack an important feature: They do not define whether they are owning or not. A share of ownership smart pointer will delete the object if every owner gives up the object. This behavior happens to be needed often, so shared owni...
What's the best practice using a settings file in Python? [closed]
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You can have a regular Python module, say config.py, like this:
truck = dict(
color = 'blue',
brand = 'ford',
)
city = 'new york'
cabriolet = dict(
color = 'black',
engine = dict(
cylinders = 8,
placement = 'mid',
),
doors = 2,
)
and use...
How can I safely create a nested directory?
What is the most elegant way to check if the directory a file is going to be written to exists, and if not, create the directory using Python? Here is what I tried:
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Why does += behave unexpectedly on lists?
...he plain __add__ and return a new object.
That is why for mutable types like lists += changes the object's value, whereas for immutable types like tuples, strings and integers a new object is returned instead (a += b becomes equivalent to a = a + b).
For types that support both __iadd__ and __add_...
What is the use of “ref” for reference-type variables in C#?
...ass a value-type ( int , struct , etc.) as a parameter (without the ref keyword), a copy of that variable is passed to the method, but if I use the ref keyword a reference to that variable is passed, not a new one.
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Show just the current branch in Git
I tried looking for a special Git command for this, but I couldn't find one. Is there anything shorter or faster than the following?
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How do I remove documents using Node.js Mongoose?
The above doesn't seem to work. The records are still there.
22 Answers
22
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Is there a use-case for singletons with database access in PHP?
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Okay, I wondered over that one for a while when I first started my career. Implemented it different ways and came up with two reasons to choose not to use static classes, but they are pretty big ones.
One is that you will fi...
Understanding the Rails Authenticity Token
I am running into some issues regarding the Authenticity Token in Rails, as I have many times now.
10 Answers
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