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

0 vote199 views1 answer
Function to calculate compound interest in C++
C++
44 votes214 views10 answers
Youtube
C++
0 vote205 views1 answer
Vprintf
C++
0 vote178 views1 answer
Setw in c++
C++
0 vote177 views1 answer
C++ define array with values
C++
92 votes310 views6 answers
String reverse
C++
0 vote184 views1 answer
Deal with bad input cpp
C++
1 vote184 views1 answer
Cpp code for euclids GCD
C++
0 vote189 views1 answer
Get elements of 2d array c++
C++
0 vote174 views1 answer
Scan line in c++
C++