https://gcc.gnu.org/bugzilla/show_bug.cgi?id=16251
Jens Seidel <jensseidel at users dot sf.net> changed:
What |Removed |Added
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CC| |jensseidel at users dot sf.net
--- Comment #8 from Jens Seidel <jensseidel at users dot sf.net> ---
According to http://www.cplusplus.com/reference/ostream/ostream/ostream/ (yes,
it's not the standard) std::ostream should provide NO default constructor at
all.
In my code "class A : public std::ostream {};" was accepted even with g++ 7
with strongest warning levels whereas it fails on other compilers. What now?
Even if binary compatibility is an issue at least some diagnostics could be
printed.
