Auto& in c++

    Use auto && for the ability to modify and discard values of the sequence within the loop. (That is, unless the container provides a read-only view, such as std::initializer_list, in which case it will be effectively an auto const &.)
    Use auto & to modify the values of the sequence in a meaningful way.
    Use auto const & for read-only access.
    Use auto to work with (modifiable) copies.

Similar codes

0 vote183 views1 answer
C++ write string
C++
1 vote145 views1 answer
C++ inline in .cpp and not in header
C++
0 vote140 views1 answer
C++ multiple if conditions
C++
1 vote149 views1 answer
Expected number of trials to get n consecutive heads
C++
0 vote170 views1 answer
Qt widget list set selected
C++
1 vote331 views1 answer
How to iterater map of sets in c++
C++
1 vote145 views1 answer
Iterate vector from end to begin
C++
-2 votes148 views1 answer
How to make custom domain extension
C++
1 vote193 views1 answer
Uri online judge 1930 solution in c++
C++
1 vote149 views1 answer
Qt qmessagebox
C++