setbuf

From cppreference.com

< c | io

Defined in header `<stdio.h>`

void setbuf( FILE stream, char buffer );		(until C99)

void setbuf( FILE restrict stream, char restrict buffer );		(since C99)

Sets the internal buffer to use for stream operations. It should be at least BUFSIZ characters long.

If buffer is not null, equivalent to setvbuf(stream, buffer, _IOFBF, BUFSIZ)

If buffer is null, equivalent to setvbuf(stream, NULL, _IONBF, 0), which turns off buffering.

stream	-	the file stream to set the buffer to
buffer	-	pointer to a buffer for the stream to use. If NULL is supplied, the buffering is turned off

None.


setvbuf	sets the buffer and its size for a file stream (function) [edit]

C++ documentation for setbuf