erase : 说明:Removes from thelistcontainer either a single element (position) or a range of elements ([first,last)).This effectively reduces the containersizeby the number of elements removed, which are destroyed.以iterator为单元,对元素进行清除。 返回值:An iterator pointing to the element that ...
'C','E','G'};set<char>::iterator it1, it2;// defining it1 pointing to the first// element and it2 to the last elementit1 = myset.begin();
#include<iostream>#include<set>usingnamespacestd;intmain(){set<int> myset;set<int>::iterator it; myset = {10,20,30};cout<<"Before erasing the element are:\n";cout<<"Size is:"<<myset.size()<<'\n';for(it=myset.begin(); it!=myset.end(); ++it)cout<< *it <<'\n'; my...
对于set来说,只有erase API,没有remove API。 erase 的作用是把符合要求的元素都删掉。 (1) void erase (iterator position); (2) size_type erase (const value_type& val); (3) void erase (iterator first, iterator last); 综上所述,erase一般是要释放资源,真正删除元素的, 而remove主要用在vector中...
iterator _Last ); size_type erase( const key_type& _Key ); Parameters _Where Position of the element to be removed from the set. _First Position of the first element removed from the set. _Last Position just beyond the last element removed from the set. ...
An iterator that points to the element to erase. Remarks For more information, seehash_map::erase (STL/CLR),hash_multimap::erase (STL/CLR),hash_set::erase (STL/CLR), andhash_multiset::erase (STL/CLR). Applies to .NET Framework 4.8.1 and other versions ...
position: iterator pointing to a single element to be removed from the set. val: Value to be removed from the set. first: Beginning of the range to erase. last: End of the range to erase. Return value It returns an iterator that points to the next element of the deleted element or ...
key-key value of the elements to remove x-a value of any type that can be transparently compared with a key denoting the elements to remove Return value 1-3)Iterator following the last removed element. 4)Number of elements removed (0 or 1). ...
pos-iterator to the element to remove first, last-range of elements to remove key-key value of the elements to remove x-a value of any type that can be transparently compared with a key denoting the elements to remove Return value
In the above example, erase(first, last) function is used to erase the element with the given range i.e. begin to end. Example 4 Let's see a simple example to erase all the odd numbers from the multiset: #include <set> #include <iostream> ...