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 vote319 views1 answer
Namespace "std" n'a pas de membre "filesystem"
C++
4 votes316 views6 answers
C++ length of char array
C++
11 votes304 views2 answers
C++ int main()
C++
2 votes323 views1 answer
Stl function to reverse an array
C++
6 votes304 views9 answers
Preorder to postorder converter online
C++
0 vote285 views1 answer
MPI_Sendrecv
C++
0 vote312 views1 answer
Memmove
C++
0 vote304 views1 answer
PCL RANSAC
C++
0 vote328 views2 answers
Method
C++
1 vote305 views2 answers
C++ example
C++