(v) is actually (*&v) since when?

Question

Could C++ standards gurus please enlighten me:

Since which C++ standard version has this statement failed because (v) seems to be equivalent to (*&

Answer 1

Your worry is unwarranted since the file in question does not actually contain the register keyword:

grep "register" /usr/include/linux/rtnetlink.h

outputs nothing. Either way, you shouldn't be receiving the warning since:

• System headers don't emit warnings by default, at least in GCC

• It isn't wise to try to compile a file that belongs to a systems project like the linux kernel in C++ mode, as there may be subtle and nasty breaking changes

Just include the file normally or link the C code to your C++ binary. Report a bug if you really are getting a warning that should normally be suppressed to your compiler vendor.