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

3 votes238 views2 answers
Fast Inverse Square Root
C++
7 votes249 views2 answers
Include all libraries in c++
C++
0 vote242 views1 answer
Auto keyword
C++
1 vote308 views1 answer
Qt qstring to double
C++
5 votes220 views2 answers
Best way to take input in cpp
C++
12 votes232 views3 answers
C++ vector size
C++
0 vote260 views1 answer
Do c++ ints neeed to be initlaized
C++
0 vote225 views1 answer
How to manually start windows app
C++
1 vote238 views1 answer
Qt qmessagebox
C++
0 vote227 views1 answer
CudaMalloc
C++