istreambuf_iterator::istreambuf_iterator
Constructs an istreambuf_iterator that is initialized to read characters from the input stream.
istreambuf_iterator(
streambuf_type* _Strbuf = 0
) throw( );
istreambuf_iterator(
istream_type& _Istr
) throw( );
Parameters
_Strbuf
The input stream buffer to which the istreambuf_iterator is being attached._Istr
The input stream to which the istreambuf_iterator is being attached.
Remarks
The first constructor initializes the input stream-buffer pointer with _Strbuf. The second constructor initializes the input stream-buffer pointer with _Istr.rdbuf, and then eventually attempts to extract and store an object of type CharType.
Example
// istreambuf_iterator_istreambuf_iterator.cpp
// compile with: /EHsc
#include <iterator>
#include <vector>
#include <algorithm>
#include <iostream>
int main( )
{
using namespace std;
// Following declarations will not compile:
istreambuf_iterator<char>::istream_type &istrm = cin;
istreambuf_iterator<char>::streambuf_type *strmbf = cin.rdbuf( );
cout << "(Try the example: 'Oh what a world!'\n"
<< " then an Enter key to insert into the output,\n"
<< " & use a ctrl-Z Enter key combination to exit): ";
istreambuf_iterator<char> charReadIn ( cin );
ostreambuf_iterator<char> charOut ( cout );
// Used in conjunction with replace_copy algorithm
// to insert into output stream and replace spaces
// with hyphen-separators
replace_copy ( charReadIn , istreambuf_iterator<char>( ),
charOut , ' ' , '-' );
}
Oh what a world!
FakePre-648361f9dea94a20abdf35d009f05b91-39c2861806d544758c80cbfb123425a2
Requirements
Header: <iterator>
Namespace: std