object
std::cin
<iostream>
Standard input stream
cin is an object of class
istream that represents the standard input stream. It corresponds to the
cstdio stream
stdin.
By default, most systems get their standard input from the keyboard, therefore
cin is generally expected to get information from the user, although there are many cases where this can be redirected to some other source.
Because
cin is an object of class
istream, we can retrieve characters from
cin either as formatted data using the extraction operator (
>>) or as unformatted data using the
read member function, among others (see
istream).
cin is
tied (see
ios::tie) to the standard output stream
cout, which means that
cout's buffer is
flushed (see
ostream::flush) before each i/o operation performed on
cin.
See also
- istream
- Input stream (class
)
- cout
- Standard output stream (object
)