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upper_bound in C++
Here we will see that is the upper_bound() function in C++ STL. This function returns an iterator that points to the first element in the container, which is considered to go after val. The syntax is like:
iterator upper_bound (const value_type& val); const_iterator upper_bound (const value_type& val) const;
The return value is an iterator, pointing to the first element in the container which is considered to go after val.
Example
#include <iostream>
#include <set>
using namespace std;
int main () {
set<int> myset;
set<int>::iterator itlow,itup;
for (int i = 1; i < 10; i++) myset.insert(i*10);
itup = myset.upper_bound (60);
myset.erase(itup);
cout << "myset contains:";
for (set<int>::iterator it = myset.begin(); it!=myset.end(); ++it)
cout << ' ' << *it;
}Output
myset contains: 10 20 30 40 50 60 80 90
Updated on: 30-Dec-2019
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