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PyPy — How can it possibly beat CPython?
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Q1. How is this possible?
Manual memory management (which is what CPython does with its counting) can be slower than automatic management in some cases.
Limitations in the implementation of the CPython interpreter preclude certain...
How does JavaFX compare to WPF? [closed]
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I have been learning JavaFX for the last couple of weeks. Here is a high level overview of how it compares to WPF in my eyes:
All of my comments are related to JavaFX 2.0. This information will probably be subject to change as the platform is still fairly immature and is being actively ...
Why is it important to override GetHashCode when Equals method is overridden?
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Yes, it is important if your item will be used as a key in a dictionary, or HashSet<T>, etc - since this is used (in the absence of a custom IEqualityComparer<T>) to group items into buckets. If the hash-code for two item...
Check orientation on Android phone
How can I check if the Android phone is in Landscape or Portrait?
23 Answers
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What is __future__ in Python used for and how/when to use it, and how it works
...requently appears in Python modules. I do not understand what __future__ is for and how/when to use it even after reading the Python's __future__ doc .
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What is the correct answer for cout
...std::operator<<(std::cout, a++) or after. So the result of the above is undefined.
C++17 update
In C++17 the rules have been updated. In particular:
In a shift operator expression E1<<E2 and E1>>E2, every value computation and side-effect of E1 is sequenced before every val...
What is the difference between List (of T) and Collection(of T)?
...the same ways, and I am worried I'm about to go down a path in design that is irreversible if I don't understand this better. Also, I am using .NET.
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What is the idiomatic Go equivalent of C's ternary operator?
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As pointed out (and hopefully unsurprisingly), using if+else is indeed the idiomatic way to do conditionals in Go.
In addition to the full blown var+if+else block of code, though, this spelling is also used often:
index := val
if val <= 0 {
index = -val...
Round to at most 2 decimal places (only if necessary)
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edited Jan 23 at 17:04
Mike
50955 silver badges171...
Use email address as primary key?
Is email address a bad candidate for primary when compared to auto incrementing numbers?
25 Answers
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