I'm using generators in list comprehensions, and getting some unexpected behavior with one of the generators ending early. Why does creating the generator outside of the list comprehension cause the behavior to change?
I was running a piece of code that unexpectedly gave a logic error at one part of the program. When investigating the section, I created a test file to test the set of statements being run and found out an unusual bug that seems very odd.
I found this example and I can't understand why it works unpredictably? I supposed it must output [1, 8, 15] or [2, 8, 22]
So, I have two very large lists of numbers l1 and l2. I'd like to multiply each element of l1 with each element of l2 without explictly creating a new list of products. Thus, I'd like a generator. This part is easy. I can just do something like
If you have a list in Python 3.7:You can turn that into a list of chunks each of length n with one of two common Python idioms:
I have the following code:What should RETURNTYPE and IMPLEMENTATION be in order to allow any client of MyObject (in this case the main() function), to iterate over the values of the m_Items map, without copying any data? It seems that this should be possible with c++11 range based for loops...
In order to avoid mutable containers / states I currently wonder what's the closest thing to construct a const STL container from some input, e.g.
I think my question is related to this, but not exactly similar. Consider this code:The output of this code is:
I am trying to create a generator that returns numbers in a given range that pass a particular test given by a function foo. However I would like the numbers to be tested in a random order. The following code will achieve this: