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 vote157 views1 answer
How to make calculaor in c++
C++
0 vote158 views1 answer
Ala vida
C++
4 votes169 views3 answers
3d vector c++ resize
C++
12 votes160 views2 answers
Copy constructor c++ syntax
C++
2 votes172 views1 answer
Std string to const char * c++
C++
-1 vote158 views1 answer
I need to write an int function in which there are only cout statements and if I return 0/1 it prints them too.
C++
0 vote159 views1 answer
Query for rmq using sqrt decomposition
C++
-1 vote166 views1 answer
C++ changing string to double
C++
8 votes170 views5 answers
Sum of vector c++
C++
2 votes166 views1 answer
Fatal error: opencv2/opencv.hpp: No such file or directory
C++