For SG15 - issues around extern “C++” {import stuff} For SG15 - issues around extern “C++” {#include “stuff”}
SG16 - round trip of localized output should be possible in the cases that non-localized is round-trippable
POSIX allows positional parameters https://pubs.opengroup.org/onlinepubs/9699919799/functions/fscanf.html C99 did not, current C does and POSIX defers to it.
Ranges and IO: Where is the interlock for C and C++ io (iostreams vs cout)