Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: kirillnow at gmail dot com
Target Milestone: ---
In libstdc++ source codecvt.cc:
inline bool is_high_surrogate(char32_t c)
{
return c >= 0xD800 && c <= 0xDBFF;
}
compiles to:
if (is_
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70893
--- Comment #1 from Кирилл ---
Bad guess on my part, sorry!
Actual problem is:
305:else if (is_low_surrogate(c))
306: return invalid_mb_sequence;
Stand-alone low surrogates are not uncommon, and could be decoded as valid
utf-8.
Example:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70893
--- Comment #2 from Кирилл ---
...
Just realized its wrong endianness problem.
codecvt_utf8_utf16 should assume utf16be by default, right? Apparently, no.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70893
--- Comment #5 from Кирилл ---
(In reply to Jonathan Wakely from comment #3)
> (In reply to Кирилл from comment #2)
> > ...
> > Just realized its wrong endianness problem.
> > codecvt_utf8_utf16 should assume utf16be by default, right? Apparentl
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70893
--- Comment #6 from Кирилл ---
(In reply to Jonathan Wakely from comment #4)
> If you think there's a bug here please provide a testcase that compiles and
> produces an incorrect result.
Here:
#include
#include
#include
#include
using names
