std::char_traits<char>::not_eof, std::char_traits<wchar_t>::not_eof, std::char_traits<char8_t>::not_eof, std::char_traits<char16_t>::not_eof, std::char_traits<char32_t>::not_eof

static int_type not_eof( int_type e );

static constexpr int_type not_eof( int_type e ) noexcept;

Given e, produce a suitable value that is not equivalent to eof.

This function is typically used when a value other than eof needs to be returned, such as in implementations of std::basic_streambuf::overflow().

See CharTraits for the general requirements on character traits for X::not_eof.

Parameters

Return value

e if e and eof value are not equivalent, or some other non-eof value otherwise.

Complexity

Constant.

See also