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iterator

How do I get the index of an iterator of an std::vector?

by IT Nursery

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

Tags c, coding-style, iterator

What are iterator, iterable, and iteration?

by IT Nursery

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

Tags iterable, iteration, iterator, python, terminology

How do I iterate through two lists in parallel?

by IT Nursery

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

Tags for-loop, iterator, list, python

What does iterator->second mean?

by IT Nursery

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

Tags c, iterator, stl

Deleting elements from std::set while iterating

by IT Nursery

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

Tags c, c++-standard-library, iterator, set, std

Why is Java’s Iterator not an Iterable?

by IT Nursery

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

Tags iterable, iterator, java

Getting number of elements in an iterator in Python

by IT Nursery

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

Tags iterator, python

What is the reason behind cbegin/cend?

by IT Nursery

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

Tags c, c++11, const-correctness, const-iterator, iterator

Why are Standard iterator ranges [begin, end) instead of [begin, end]?

by IT Nursery

Why does the Standard define end() as one past the end, instead of at the actual end? Best Answer 7

Tags c, iterator, standards, stl

Why use non-member begin and end functions in C++11?

by IT Nursery

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

Tags c, c++11, container-data-type, iterator, stl
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