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Do sealed classes really offer performance Benefits?
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There are complex rules regarding calling type, virtual/nonvirtual, and I don't know them all so I can't really outline them for you, but if you google for sealed classes and virtual methods you might find some articles on the topic.
Note that any kind of performance benefit you would obtain from ...
Why do I get the error “Unsafe code may only appear if compiling with /unsafe”?
Why do I get the following error?
6 Answers
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Behaviour of increment and decrement operators in Python
...perator can be applied on a variable (like ++count ). It compiles, but it does not actually change the value of the variable!
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How to do a scatter plot with empty circles in Python?
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From the documentation for scatter:
Optional kwargs control the Collection properties; in particular:
edgecolors:
The string ‘none’ to plot faces with no outlines
facecolors:
The string ‘none’ to plot...
Which is faster/best? SELECT * or SELECT column1, colum2, column3, etc
...o SELECT every column in a table,..." -- in that case, * vs col1, .., coln doesn't matter (but it DOES for programmer time, since * is shorter!).
– Matt Rogish
Sep 15 '08 at 19:23
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c++11 Return value optimization or move? [duplicate]
I don't understand when I should use std::move and when I should let the compiler optimize... for example:
4 Answers
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Why is using the JavaScript eval function a bad idea?
...st use whatever developer tool to change the JavaScript in the client, why do you say Eval() opens up your code to injection attacks? Isn't already opened? (I'm talking about client JavaScript of course)
– Eduardo Molteni
Oct 24 '12 at 1:52
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How to initialize a private static const map in C++?
...I add cout << A::myMap[1]; into main(). It gives an error. The error doesn't occur if I remove the const qualifiers, so I guess map's operator[] can't handle a const map, at least, not in the g++ implementation of the C++ library.
– Craig McQueen
Oct 31 '...
How to use the “number_to_currency” helper method in the model rather than view?
I would like to use to_dollar method in my model like this:
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How do I include a newline character in a string in Delphi?
...at spans multiple lines to assign to a Label Caption property. How is this done in Delphi?
11 Answers
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