[Octave-bug-tracker] [bug #52681] Bad reading for UTF-8 characters with fscanf()

[Markus Mützel]

Follow-up Comment #18, bug #52681 (project octave):

"std::string" is basically a "typedef basic_string<char> string;". Also "buf"
is a "std::ostringstream" which is "typedef basic_ostringstream<char>
ostringstream;". Casting the integer "c" to "unsigned char" before inserting
it in "buf" would have no effect.
We could define our own types based on "unsigned char". But since
"std::istream& is" is based on "char" as well, there would probably always be
some places with casts between "char" and "unsigned char" were necessary.

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