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std::basic_...f::overflow(3) C++ Standard Libary std::basic_...f::overflow(3) NAME std::basic_filebuf::overflow - std::basic_filebuf::overflow Synopsis protected: virtual int_type overflow ( int_type c = Traits::eof() ); Writes some data from the put area to the associated character se- quence (to the file). Behaves like the base class std::basic_streambuf::overflow, except that to write the data, first uses std::codecvt::out of the imbued locale to convert the characters into external (possibly multibyte) representation, stored in a tem- porary buffer (allocated as large as necessary), then uses file I/O to copy all fully-converted bytes into the file. If std::codecvt::always_noconv is true, the call to std::codecvt::out may be skipped. If the conversion fails with std::codecvt_base::error, returns Traits::eof() without attempting any output. If the associated file is not open (is_open() == false), returns Traits::eof() before doing anything. Parameters (none) Return value Traits::not_eof(c) to indicate success or Traits::eof() to indicate failure. Example This section is incomplete Reason: no example See also overflow writes characters to the associated output sequence from the put area [virtual] (virtual protected member function of std::basic_stream- buf<CharT,Traits>) underflow reads from the associated file [virtual] (virtual protected member function) http://cppreference.com 2022.07.31 std::basic_...f::overflow(3)
NAME | Synopsis | Parameters | Return value | Example | See also
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