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Is the practice of returning a C++ reference variable evil?
...rn 0;
}
If the lifetime should be left up to the caller, and you're just computing the value.
Summary: it's okay to return a reference if the lifetime of the object won't end after the call.
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How to avoid having class data shared among instances?
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Convert Rows to columns using 'Pivot' in SQL Server
...sing a hard-cded version initially." Unlike the Qlikview Generic function (community.qlik.com/blogs/qlikviewdesignblog/2014/03/31/generic) which allows doesn't require that you explicitly name the different "FOR ____ IN (...)"
– The Red Pea
Aug 13 '15 at 22:03
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What is the role of the bias in neural networks? [closed]
...-input, 1-output network that has no bias:
The output of the network is computed by multiplying the input (x) by the weight (w0) and passing the result through some kind of activation function (e.g. a sigmoid function.)
Here is the function that this network computes, for various values of w0:
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Difference between wait() and sleep()
... is any other thread which 'waits' on this object. wait/notify is used for communication, while sleep is used for, ehm, sleeping.
– Peter Štibraný
Jun 24 '09 at 7:01
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How do you prevent IDisposable from spreading to all your classes?
...So can examining the available sources for the .net libraries or using a decompiler.
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Difference between Inheritance and Composition
Are Composition and Inheritance the same?
If I want to implement the composition pattern, how can I do that in Java?
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Is it possible to make abstract classes in Python?
...you need it? If the class is already established as abstract shouldn't the compiler/interpret know that all the methods are from the abstract class in question?
– Charlie Parker
Mar 17 '14 at 3:30
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Get nth character of a string in Swift programming language
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Why is this not built-in?
The error message says "see the documentation comment for discussion". Apple provides the following explanation in the file UnavailableStringAPIs.swift:
Subscripting strings with integers is not available.
The concept of "the ith character in a string" has
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