std::char_traits<CharT>::not_eof
static int_type not_eof( int_type e ); |
(until C++11) | |
static constexpr int_type not_eof( int_type e ) noexcept; |
(since C++11) |
Given e
, produce a suitable value that is not equivalent to eof.
Formally.
- if
X::eq_int_type(e, X::eof())
isfalse
, returnse
- otherwise, returns a value
f
such thatX::eq_int_type(f, X::eof())
isfalse
This function is typically used when a value other than eof needs to be returned, such as in implementations of std::basic_streambuf::overflow()
.
Parameters
e | - | value to analyze |
Return value
e
if e
and eof value are not equivalent, returns some other non-eof value otherwise.
Complexity
Constant.
See also
[static]
|
returns an eof value (public static member function) |
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