setvbuf
Syntax:
#include <cstdio> int setvbuf( FILE *stream, char *buffer, int mode, size_t size );
The function setvbuf() sets the buffer for stream to be buffer, with a size of size. mode can be:
- _IOFBF, which indicates full buffering
- _IOLBF, which means line buffering
- _IONBF, which means no buffering
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