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What is the rationale for all comparisons returning false for IEEE754 NaN values?
... differently from all other values?
That is, all comparisons with the operators ==, =, where one or both values is NaN returns false, contrary to the behaviour of all other values.
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What are the most interesting equivalences arising from the Curry-Howard Isomorphism?
...hism relatively late in my programming life, and perhaps this contributes to my being utterly fascinated by it. It implies that for every programming concept there exists a precise analogue in formal logic, and vice versa. Here's a "basic" list of such analogies, off the top of my head:
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Swift - How to convert String to Double
I'm trying to write a BMI program in swift language.
And I got this problem: how to convert a String to a Double?
29 Answer...
What are POD types in C++?
...ther defined with the keyword struct or the keyword class) without constructors, destructors and virtual members functions. Wikipedia's article on POD goes into a bit more detail and defines it as:
A Plain Old Data Structure in C++ is an aggregate class that contains only PODS as members, has no...
Is Python strongly typed?
...Dynamic typing means that runtime objects (values) have a type, as opposed to static typing where variables have a type.
As for your example
bob = 1
bob = "bob"
This works because the variable does not have a type; it can name any object. After bob=1, you'll find that type(bob) returns int, but...
What happens when there's insufficient memory to throw an OutOfMemoryError?
...and expansion is attempted but insufficient memory can be made available
to effect the expansion, or if insufficient memory can be made
available to create the initial Java virtual machine stack for a new
thread, the Java virtual machine throws an OutOfMemoryError.
For Heap, Section 3.5.3...
How to convert wstring into string?
The question is how to convert wstring to string?
16 Answers
16
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What is the difference between const_iterator and non-const iterator in the C++ STL?
What is the difference between a const_iterator and an iterator and where would you use one over the other?
7 Answers
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Java ResultSet how to check if there are any results
Resultset has no method for hasNext. I want to check if the resultSet has any value
21 Answers
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Why is reading lines from stdin much slower in C++ than Python?
I wanted to compare reading lines of string input from stdin using Python and C++ and was shocked to see my C++ code run an order of magnitude slower than the equivalent Python code. Since my C++ is rusty and I'm not yet an expert Pythonista, please tell me if I'm doing something wrong or if I'm mis...