I'm trying to write an overloaded method that returns non-const result only when both the object on which it is called is non-const and iterator passe ...
I'm trying to write an overloaded method that returns non-const result only when both the object on which it is called is non-const and iterator passe ...
Both member functions appear to do the same thing. In the example below, both return an iterator pointing to the same memory location. a) Is there an ...
I found this article 'How to write an STL compatible container' https://medium.com/p/fc5b994462c6 The author, Vanand Gasparyan, had issues around one ...
I noticed that std::reverse_iterator always decrements a copy of internal iterator before dereference: This is the implementation in GNU standard C ...
I have a 2D array. It's perfectly okay to iterate the rows in forward order, but when I do it in reverse, it doesn't work. I cannot figure out why. I ...
(ASCII copied, and edited, from this answer, which is actually prompted me to ask the present question.) I do see the advantage of having that & ...
for example the code bellow sort the vec on desc order : On the C++ reference: Sorts the elements in the range [first,last) into ascending orde ...
In Another way of looking at C++ reverse iterators Raymond Chen wrote: ... a quirk of the C++ language: You are allowed to have a pointer "one pas ...
How should I implement my reverse_iterator for such code to work? using it = Set<int>::iterator; using rit = Set<int>::reverse_iterator; ...
I need to find minimum element in my array, but if amount of minimum elements more than 1, I need to use the most right one. Consider this code: It ...
Is there a technical reason why std::filesystem::path doesn't offer reverse iterators (i.e., rbegin and rend)? If I have a std::filesystem::path for ...
This is a code example using std::reverse_iterator: When using std::reverse_iterator as an adaptor for another iterator, the newly adapted end sh ...
As given here, a good way to iterate backwards through a list is to use rbegin(), as below: list<DVFGfxObj*>::reverse_iterator iter = m_Objs.rb ...
The reverse iterator of a std::map.rbegin() returns the position of the element which contains the largest key_type in a std::map. The element with t ...
I expected the output to be 'abcba', but there seems to be an error in push_back(). Somebody help me T_T ...
The other day I wanted to try writing my own iterators for a vector, of course, the most primitive example, since there is a lot of confusing code in ...
The following code compiles in C++11, C++14, and C++17, but does not compile in C++20. What change to the standard broke this code? The error is qu ...
in the code between the horizontal lines, I am trying to erase last element from the set. when I write s.erase( s.rbegin( ) ) instead of s.erase( - ...
Based on this question. std::rotate is defined the following way: Looking at the name ForwardIt, it expects forward iterator. Question: assuming t ...
Let's assume that I want to write a bidirectional iterator that iterates over all non-zero values of any container providing begin()/end()/rbegin()/re ...