HelenOS sources

pbackfail         222 uspace/lib/cpp/include/__bits/io/fstream.hpp             int_type pbackfail(int_type c = traits_type::eof()) override
pbackfail         136 uspace/lib/cpp/include/__bits/io/sstream.hpp             int_type pbackfail(int_type c = traits_type::eof()) override
pbackfail         369 uspace/lib/cpp/include/__bits/io/streambuf.hpp             virtual int_type pbackfail(int_type c = traits_type::eof())