How do I get the index of an iterator of an std::vector?
I would prefer it – vec.begin() precisely for the opposite reason given by Naveen: so it wouldn’t compile if you change the vector … Read more
iterator
What are iterator, iterable, and iteration?
Iteration is a general term for taking each item of something, one after another. Any time you use a loop, explicit or implicit, … Read more
How do I iterate through two lists in parallel?
Python 3 for f, b in zip(foo, bar): print(f, b) zip stops when the shorter of foo or bar stops. In Python 3, … Read more
What does iterator->second mean?
In C++, what is the type of a std::map<>::iterator? We know that an object it of type std::map<A,B>::iterator has an overloaded operator -> … Read more
Deleting elements from std::set while iterating
I need to go through a set and remove elements that meet a predefined criteria. This is the test code I wrote: #include … Read more
Why is Java’s Iterator not an Iterable?
Why does the Iterator interface not extend Iterable? The iterator() method could simply return this. Is it on purpose or just an oversight … Read more
Getting number of elements in an iterator in Python
Is there an efficient way to know how many elements are in an iterator in Python, in general, without iterating through each and … Read more
What is the reason behind cbegin/cend?
I wonder why cbegin and cend were introduced in C++11? What are cases when calling these methods makes a difference from const overloads … Read more
Why are Standard iterator ranges [begin, end) instead of [begin, end]?
Why does the Standard define end() as one past the end, instead of at the actual end? Best Answer 7
Why use non-member begin and end functions in C++11?
Every standard container has a begin and end method for returning iterators for that container. However, C++11 has apparently introduced free functions called … Read more
