function
std::nounitbuf
<ios>
ios_base& nounitbuf ( ios_base& str );
Do not force flushes after insertions
Clears the
unitbuf "format" flag for the
str stream.
When the
unitbuf flag is not set, the associated buffer is not forced to be flushed after every insertion operation.
This flag can be set with the
unitbuf manipulator, forcing flushes after every insertion.
The
unitbuf flag is
not set in standard streams on initialization.
Parameters
- str
- Stream object where to apply.
Because this function is a manipulator, it is designed to be used alone with no arguments in conjunction with the insertion (<<) and extraction (>>) operations on streams (see example below).
Return Value
A reference to the stream object.
Example
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// nounitbuf example
#include <fstream>
using namespace std;
int main () {
ofstream outfile ("test.txt");
outfile << nounitbuf << "Test " << "file" << endl;
outfile.close();
return 0;
}
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See also
- unitbuf
- Flush buffer after insertions (function)
- ios_base::flags
- Get/set format flags (public member function)
- ios_base::setf
- Set specific format flags (public member function)
- ios_base::unsetf
- Clear specific format flags (public member function)