Emplace vs push c++

push() adds a copy of an already constructed object into the queue as a 
parameter, it takes an object of the queue's element type.

emplace() constructs a new object in-place at the end of the queue. It takes 
as parameters the parameters that the queue's element types constructor takes.

If your usage pattern is one where you create a new object and add it to the
container, you shortcut a few steps (creation of a temporary object and copying
it) by using emplace().

Source: stackoverflow.com

Similar codes

11 votes167 views1 answer
Inserting at start in vector c++
C++
0 vote185 views1 answer
Flutter websocket auto reconnect
C++
6 votes159 views1 answer
Convert string to stream c++
C++
1 vote195 views1 answer
Height of bst cpp
C++
5 votes169 views1 answer
Best clips recording software for cs go
C++
0 vote241 views2 answers
Lcm in c++
C++
0 vote169 views1 answer
Read large files part by part in C++
C++
1 vote242 views1 answer
Convert a hexadecimal number into decimal c++
C++
0 vote188 views1 answer
Pimpl c++
C++
0 vote198 views1 answer
Visual studio code include path not working c++
C++