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Why can't (or doesn't) the compiler optimize a predictable addition loop into a multiplication?
This is a question that came to mind while reading the brilliant answer by Mysticial to the question: why is it faster to process a sorted array than an unsorted array ?
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Python list iterator behavior and next(iterator)
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What you see is the interpreter echoing back the return value of next() in addition to i being printed each iteration:
>>> a = iter(list(range(10)))
>>> for i in a:
... print(i)
... next(a)
...
0
1
2
3
4
5
6
7
8
9
So 0 is the output of p...
Where to define custom error types in Ruby and/or Rails?
Is there a best practice for defining custom error types in a Ruby library (gem) or Ruby on Rails application? Specifically:
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Convert data.frame column format from character to factor
... would like to change the format (class) of some columns of my data.frame object ( mydf ) from charactor to factor .
6 A...
Why can't I use the 'await' operator within the body of a lock statement?
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I assume this is either difficult or impossible for the compiler team to implement for some reason.
No, it is not at all difficult or impossible to implement -- the fact that you implemented it yourself is a testament to that fact. Rather, it is an incredibly bad ide...
How to frame two for loops in list comprehension python
I have two lists as below
6 Answers
6
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make_unique and perfect forwarding
...y is there no std::make_unique function template in the standard C++11 library? I find
6 Answers
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How can I get all constants of a type by reflection?
...ist();
FieldInfo[] fieldInfos = type.GetFields(
// Gets all public and static fields
BindingFlags.Public | BindingFlags.Static |
// This tells it to get the fields from all base types as well
BindingFlags.FlattenHierarchy);
// Go through the list and only...
How to see if an NSString starts with a certain other string?
...L starts with http. The way I am trying to check right now doesn't seem to be working. Here is my code:
5 Answers
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Comparing date part only without comparing time in JavaScript
What is wrong with the code below?
22 Answers
22
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