C++ Multiset emplace_hint()
C++ Multiset emplace_hint() function is used to extend the multiset container by inserting new elements into the container using hint as a position for element. Elements are built directly (neither copied nor moved).
The constructor of the element is called by giving the arguments args passed to this function.
args: The arguments forwarded to construct an element to be inserted into the container.
position: Hint for the position to insert the new elements.
emplace_hint() function returns an iterator to the newly inserted elements. If element is already exists, insertion is failed and returns iterator to the existing element.
If position is not specified then complexity will be logarithmic in container size.
If position is given then complexity will be amortized constant.
The container is modified.
Iterating ranges in the container is not safe although concurrently accessing exiting elements is safe.
If an exception is thrown, there are no changes in the container.
Let's see the simple example to insert the elements into the multiset:
Multiset contains following elements 10 20 20 30 30 40
In the above example, it simply inserts the element into the multiset m with the given value in the given positions.
Let's see a simple example:
multiset starting data: 3 elements: Deep Ram Sunil multiset modified, now contains 4 elements: Deep Deep Ram Sunil
Let's see a simple example to insert the elements into the multiset with the given position:
mymultiset contains: [a] [b] [b]
Let's see a simple example to insert the element:
Enter the number of fmly members : 4 Enter the name of each member: Deep Sonu Ajeet Bob Total memnber of fmly is:4 Details of fmly members: Name ________________________ Ajeet Bob Deep Sonu
In the above example, it simply inserts the elements by the user's choice in the beginning of multiset.