C++ seterase()function is used to remove either a single element associated with given key or a range of elements ([first, last)) from the set container. Hence, the size will be reduced by the number of elements removed. Syntax voiderase (iterator position);//until C++ 11 size_type era...
C++ STL - Multimap insert(), erase() C++ STL - Multimap find(), lower_bound(), upper_bound() C++ STL MISC. std::swap() C++ STL - Push & print elements in an integer deque C++ STL - User-defined comparator for priority queue C++ STL - Create Heap C++ STL - Binary Search C++ ST...
{2,7,1,8,2,8};// creates a set of intsprint(mySet);mySet.insert(5);// puts an element 5 in the setprint(mySet);if(autoiter=mySet.find(5);iter!=mySet.end())mySet.erase(iter);// removes an element pointed to by iterprint(mySet);mySet.erase(7);// removes an element ...
}intmain(intargc,char**argv){ unordered_set<string> first1;unordered_set<string>first2( {"one","two","three"} );unordered_set<string>first3( {"red","green","blue"} );unordered_set<string>first4( first2 );unordered_set<string>first5( cmerge(first4,first3) );unordered_set<string...
Inserts a new element into the container constructed in-place with the givenargs, if there is no element with the key in the container. The constructor of the new element is called with exactly the same arguments as supplied toemplace, forwarded viastd::forward<Args>(args)... The element...
first = prev;if(prev == C.begin() || (*(--prev)).second > y){ ++count; last = first;while(last != C.end() && (*last).second > y) last++;if(first != last) C.erase(first,last); C.insert(A[i].second); } }returncount; ...
Probably comes down to the fast path using _Unchecked_erase which has an implicit requirement that the values are all still valid as it callsbucketto hash values. STL/stl/inc/xhash Line 1036 in2f03bdf const size_type _Bucket = bucket(_Traits::_Kfn(_Eraser._Next->_Myval)); // throw...
Compared to aSmallVectorthat would never grow,FixedCapacityVectorwill be slightly more efficient (less checks) and make the intent clear, with nice additional iterator validity properties (begin()is never invalidated, iterators before any insert / erase are never invalidated). In addition, if type ...
() << std::endl; myset = {"milk","potatoes","eggs"}; std::cout <<"1. size: "<< myset.size() << std::endl; myset.insert ("pineapple"); std::cout <<"2. size: "<< myset.size() << std::endl; myset.erase ("milk"); std::cout <<"3. size: "<< myset.size()...
C++11 unordered_set::erase C++11 unordered_set::find C++11 unordered_set::get_allocator C++11 unordered_set::hash_function C++11 unordered_set::insert C++11 unordered_set::key_eq C++11 unordered_set::load_factor C++11 unordered_set::max_bucket_count C++11 unordered_set::max_lo...