Synchronize stream buffer
Calls the protected virtual member sync, which synchronizes the contents in the buffer with those of the associated character sequence, effectively writing any unwritten character in the output buffer to the physical device.
Parameters
none
Return Value
If the function is succeessful, the function returns zero. If it fails, it returns a value of
-1.
Example
// pubsync member
#include <iostream>
#include <fstream>
using namespace std;
int main () {
streambuf * pbuf;
ofstream ostr ("test.txt");
pbuf = ostr.rdbuf();
pbuf->sputn ("First sentence\n",15);
pbuf->pubsync();
pbuf->sputn ("Second sentence\n",16);
ostr.close();
return 0;
}
|
In this example, the buffer is synchronized with the content of the file after the first sentence.
Basic template member declaration
( basic_streambuf<charT,traits> )
See also
| streambuf::sync | Synchronize stream buffer (virtual protected member function) |
