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What is the use of emplace() function? - Practice - ObjectiveMcq

HomePracticeC++ InterviewProgrammingWhat is the use of emplace() functi...

Programming C++ InterviewEasy

What is the use of emplace() function?

Correct Answer: D — Used to change the object any container is holding

emplace() function is used to change the object contained in any container i.e destroying the present object and creating the new object for the value given by the user.

Related Practice

What will be the output of the following C++ code

#include <iostream>

#include <bitset>

using namespace std;

int main()

{

bitset<b1(95);

bitset<b2 = b1 >> cout<<b1<<endl<<b}
What will be the output of the following C++ code

#include <iostream>

#include <bitset>

using namespace std;

int main()

{

bitset<b1(95);

bitset<b2 = b1 << cout<<b}
What happens when only one argument is supplied to flip() function?
What happens when no argument is supplied to flip() function?
What is the use of the flip function in bitset?
Which of the following is correct?
How destructor overloading is done?
What will be the output of the following C++ code

#include <iostream>

using namespace std;

class A{

public:

int a;

A(){

cout<<"Constructor called";

}

} a;

int main(int argc, char const *argv[])

{

return}