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 vote123 views1 answer
Run c++ program in mac terminal
C++
18 votes124 views3 answers
Sort in descending order c++ stl
C++
0 vote138 views1 answer
Surf interpolation matlab
C++
0 vote126 views3 answers
C++ splitstring example
C++
10 votes133 views2 answers
Why convert char* to string c++
C++
4 votes111 views1 answer
C++ natural log
C++
0 vote144 views1 answer
Three way comparison operator c++
C++
1 vote111 views1 answer
C++ shortcuts in desktopp app
C++
5 votes122 views1 answer
How to use comparator funtion in priority queue in c++
C++
0 vote141 views1 answer
Could not load the Visual C++ component "VCBuild.exe". To fix this, 1) install the .NET Framework 2.0 SDK, 2) install Microsoft Visual Studio 2005 or 3) add the location of the component to the system path if it is installed elsewhere.
C++