https://gcc.gnu.org/bugzilla/show_bug.cgi?id=37475
Kristian Spangsege <kristian.spangsege at gmail dot com> changed:
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--- Comment #5 from Kristian Spangsege <kristian.spangsege at gmail dot com> ---
This bug still exists in GCC 10.2, while libc++ (clang) appears to do the right
thing.
Specifically, when passing a nonzero amount of data (from_end > from) to
std::codecvt::out(), but an empty output buffer (to_end == to), the return
value is "ok". According to the C++ standard (C++17), the correct return value
is "partial".
This appears to happen regardless of locale. In particular, it happens in the C
locale.
As far as I can tell, http://cplusplus.github.io/LWG/lwg-closed.html#382 is not
relevant here, because the current standard text is clear (C++17), and
http://cplusplus.github.io/LWG/lwg-closed.html#382 has status NAD, which I
assume means "not a defect".
Jonathan, let me know if I am missing something.
