insert « iterator

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C Q&A » iterator » insert

1. insert_iterator and (x < y) bytes.com

If you want STL iterators to use a comparator other than operator<, you need to pass the comparator function to the constructor of the set or map or the algorithmic function in question (third parameter). http://www.cplusplus.com/reference/stl/set/set.html may be useful. The compare third argument to, say, sort(iterator, iterator, comparator=less); simply defaults to <. Thank you for the reply, I should have supplied ...

2. output_iterator_tag and back_insert_iterator bytes.com

Hello, I am trying to write a generic function that can read data from a file and store it in a container. I defined the following function: template void readBinaryFile( const std::string &filename, std::iterator

3. question on map::insert(iterator, const value& v) bytes.com

consider the following program: #include #include #include #include #include using namespace std; int main() { typedef map

4. iterator_traits::value_type on back_insert_iterator - returns void bytes.com

Hello, My Requirement is 1. Copy data from iterator to an array ( array should be created dynamically within the function based on data_type of the data held by the iterator /container. ) 2. Copy data from array into iterator ( array should be created dynamically within the function based on data_type of the data held by the iterator /container. ) ...

5. How to obtain iterator to beginning of inserted elements in list bytes.com

I want to replace one element in a list::iterator &iter_to_remove, const list &list_to_insert) { list::iterator next_iter = my_list.erase(iter_to_remove); my_list.insert(next_iter, list_to_insert.begin(), list_to_insert.end()); // Does 'iter_to_remove' point to the first element of the inserted list, or is it invalid? } When I ...

6. Invalidating iterators after insertion/removal bytes.com

"barcaroller" If I insert/remove an element in a set, will an iterator to this set automatically become invalid? Does the position of the iterator before the insertion/removal matter? Insertion doesn't invalidate iterators into a set, deletion will invalidate iterators (and pointers and references) to that element only. How are vectors and lists affected? Lists have the same ...

7. list::iterator behavior (after insert/delete) specification bytes.com

Jason S where is the behavior of list::iterator specified? I need to keep track of ranges of data, all I can figure out so far is that iterators are guaranteed to be valid unless you remove the elements they point to. Example -- if L is a list and Li = L.end(), and you call L.push_back(something), how do you know whether ...