basic_istream::putback
Puts a specified character into the stream.
basic_istream<Elem, Tr>& putback(
char_type _Ch
);
Parameters
- _Ch
A character to put back into the stream.
Return Value
The stream (*this).
Remarks
The unformatted input function puts back _Ch, if possible, as if by calling rdbuf->sputbackc. If rdbuf is a null pointer, or if the call to sputbackc returns traits_type::eof, the function calls setstate(badbit). In any case, it returns *this.
Example
// basic_istream_putback.cpp
// compile with: /EHsc
#include <iostream>
using namespace std;
int main( )
{
char c[10], c2, c3;
c2 = cin.get( );
c3 = cin.get( );
cin.putback( c2 );
cin.getline( &c[0], 9 );
cout << c << endl;
}
qw q
Requirements
Header: <istream>
Namespace: std